Merge branch 'main' into feature/catalonia-cctv-cameras

# Conflicts:
#	CHANGELOG.md

.dockerignore

@@ -0,0 +1,24 @@
+# Keep keys and local state out of the build context: compose bind-mounts the
+# checkout at run time, so the image never needs them.
+.git
+node_modules
+dist
+.env
+.env.*
+!.env.example
+**/ENVIRONMENT
+pinokio/ENVIRONMENT
+pinokio/.installed
+.gev-cache
+.gev-logs
+qa-artifacts
+qa-shots
+screenshots
+output
+3d-models
+.gstack
+*.log
+.DS_Store
+# AppleDouble sidecars from a macOS `tar` copy; `npm test` would otherwise
+# collect `._*.test.mjs` as test files.
+._*

.env.example

@@ -96,6 +96,13 @@ OPENAI_HUD_SUMMARY_MODEL=gpt-5-nano
 # spend protection set a provider-side budget: OpenAI platform -> Settings ->
 # Limits (usage limits).
 # GEV_RATELIMIT_OPENAI_PER_MIN=30   # the default; uncomment only to change it
+# Optional: exact socket addresses (comma-separated, no wildcards or prefixes)
+# that Provider Settings treats as this machine in addition to loopback. Leave
+# unset. The Docker launcher sets it to the container's gateway at start,
+# because that is where Docker delivers your own browser from; it is safe only
+# while the port is published on 127.0.0.1. Read SECURITY.md before setting it
+# by hand.
+# GEV_KEY_SETUP_TRUSTED_PEERS=
 
 # Optional: Mapillary imagery for the Street Level layer. Free client token from
 # https://www.mapillary.com/dashboard/developers (register an app, copy its

CHANGELOG.md

@@ -1,5 +1,44 @@
 # Changelog
 
+- Stop one retired bikeshare feed from reporting the whole layer as failed.
+  City feeds are fetched independently, but failure was recorded in a single
+  flag that only a successful *activation* cleared — and an already-loaded city
+  never activates again. A dead feed re-entering camera range therefore latched
+  LOAD FAILED permanently over a map still drawing every other city's stations.
+  Failure is now tracked per city: a city that fails beside others still
+  drawing marks the layer DEGRADED, polls that all fail over previously drawn
+  points read STALE without advancing freshness, and LOAD FAILED is reported
+  only when nothing is left to draw. A city that recovers clears its own
+  failure, a failure is dropped once its city leaves range or the camera rises
+  above the activation altitude, and late results from superseded requests are
+  ignored.
+
+  Repointed the three feeds whose operators had moved: Reddy Bikeshare (Buffalo)
+  to Social Bicycles, Tugo (Tucson) and Trinity Metro (Fort Worth) to PBSC.
+  Dropped CoGo (Columbus) and Broward B-cycle (Fort Lauderdale), whose systems
+  have wound down — CoGo's feed reports no stations and last moved a bike in
+  March 2025. The three repointed feeds were verified live.
+
+- Add Bike Share Toronto (1,069 stations) to the bikeshare registry. The system
+  publishes the same PBSC GBFS v2 feeds as the Austin, Honolulu and Chattanooga
+  entries, so it needs no new plumbing; a registry test now holds every city's
+  feed URLs against the proxy host and path allowlists, so a city the proxy
+  would refuse fails the suite instead of rendering an empty layer.
+
+- GBFS v3 station names use English translations when available, then the first
+  usable translation or short name. Empty or malformed names no longer appear as
+  `[object Object]` or interrupt station loading; legacy string names remain
+  supported in the globe and bike-share tools. Thanks to
+  [Kristóf Kékesi](https://github.com/KristofKekesi) (#61).
+
+- Overpass and military-installation disk caches no longer serve answers from a
+  previously configured `OVERPASS_UPSTREAMS` instance after it is repointed.
+
+- A Radio Browser mirror answering 204, 205 or 304, or a status outside
+  200–599, no longer crashes the local dev/preview server. Null-body statuses
+  get an empty body; anything else that cannot become a response fails that
+  mirror so the next one is tried.
+
 - Snow flakes sway within a fixed range instead of drifting sideways faster the
   longer the app runs; the Wind setting still scales the sway.
 
@@ -36,18 +75,13 @@
 
 - Director timeline seeks cross the dateline along the short longitude arc.
 
-- Map state updates stop delivering to subscribers removed during the same notification.
+- Recent Imagery continues past malformed records in full catalog pages, respects the requested record limit, and reports results as truncated when that limit drops valid records.
 
-- Director assets cancelled during the final stream read are discarded with reader cleanup.
+- Regional articles retain unknown publication times when compact source dates do not identify a real calendar instant.
 
-- Analyst queries preserve useful rows when an upstream timestamp is outside the supported date range.
-
-- Fire detections with missing or impossible positions are skipped while genuine zero coordinates remain valid.
-
-- Frequently reused terrain batches retain their cached heights ahead of unused cells.
-
-- Recent Imagery’s exported `setBox` and `searchHls` reject missing, blank or
-  boolean programmatic box edges instead of interpreting them as zero coordinates.
+- Add Detroit (MoGo), Pittsburgh (POGOH), Aspen (WE-cycle) and Kona & Hilo
+  (HIBike) to the GBFS bikeshare registry, the layer's first stations in
+  Michigan.
 
 - Treat explicitly current, complete empty vessel coverage as a successful update,
   clearing obsolete contacts while retaining stale or incomplete snapshots.
@@ -144,6 +178,70 @@
 
 ## [Unreleased]
 
+- Add a keyless Air quality layer to the Weather group, with Environment and
+  Climate Change Canada's AQHI as the first registered provider. Readings carry
+  `{ provider, scale, value, band }` so another network can be added without
+  inventing a shared numeric meaning across indices that do not share one; the
+  row and readout both state that coverage is Canada only. The WEATHER card
+  shows the band legend and the highest readings currently in view. AQHI is
+  reported as an integer from 1 with an open-ended "10+", so readings round to
+  that published form rather than the decimal precision the API returns.
+  Readings older than six hours are dropped, and the layer reports `stale`
+  through `getStats()` (also when every observation was dropped) so feed
+  provenance cannot describe an aged feed as live. Voice can switch it on and
+  query readings by value, band, station and observation time.
+
+- Bound six upstream body reads (FIRMS CSV, CelesTrak TLE groups, adsb.lol
+  `/v2/mil`, TomTom flow tiles, OpenSky `states/all` and adsbdb lookups) with
+  streaming size caps that cancel the body at the cap or the route's deadline;
+  the adsb.lol military poll gains a deadline of its own. An oversized OpenSky
+  snapshot is not retried, and an OpenSky 429 starts its cooldown before the
+  body is read.
+
+- Keep later satellites when a TLE catalog entry is missing an orbital line.
+  The parser skips the incomplete set and resumes at the next complete named
+  set, instead of losing the rest of the group (#906).
+
+- Satellite clouds keep Clouds only / Full as quick endpoints and add a continuous
+  cloud-filter slider: 0% is Full, 100% is the existing brightness key, and
+  intermediate values blend the keyed alpha. The slider commits on release to
+  avoid restaging imagery for every drag event. Filter percentages round-trip in
+  share links; legacy mode codes retain their old endpoint meanings. Background
+  panel refreshes preserve the pending drag value until release. Contributed by
+  [NotProniss](https://github.com/NotProniss) (#1084).
+
+- Street Level: Panoramax is the fourth provider, keyless. Light its chip
+  (orange; off by default, one provider at a time): from orbit dots show
+  where the federated commons has pictures, and below about 60 km its
+  sequences draw as lines from `api.panoramax.xyz` vector tiles. A click on a
+  line opens that sequence's picture nearest the click without moving the
+  camera, flat or 360°, with cones along the sequence around it and ‹ › /
+  ← → following the picture's own links. The 360° and since filters apply,
+  in the lines and in the lookup. The caption names each picture's author
+  and licence (CC BY-SA 4.0, Licence Ouverte 2.0…) and links to it in the
+  Panoramax viewer. HD originals load once, only when the viewer is wider
+  than the 2,048 px version (a panorama: expanded), and every download stops
+  when the photo changes; an image whose header declares more than 64 MP is
+  refused before it decodes. Share links carry it as
+  `0.m.0_0.r.google-0*kartaview-0*panoramax-1` (`0.m.0_0.r.panoramax-1` works
+  too). KartaView's photo viewer
+  is now shared (`photoViewer.js`, `panorama.js`); in it, for KartaView too,
+  Esc clears the selected drive before it collapses the panel. Lines are
+  simplified and drawn within a point budget (a tile's unsimplified lines
+  over Paris hung the tab), decoded in slices so the globe keeps moving,
+  and kept; the cones' tiles have their own connection, and the open
+  picture's tile draws its cones before its neighbours arrive.
+
+- Flights and Military Flights highlight emergency transponder broadcasts in
+  fleet billboards, 3D models and Cockpit contacts. Colors update when a status
+  starts or clears. Emergency squawks outrank ADS-B priority statuses; GEV
+  reports minimum fuel and lifeguard without red tint. Cockpit names the code
+  or ADS-B status, and analyst/voice results retain broadcast provenance and
+  the latest known contact time. One omitted ADS-B status poll during a source
+  switch may retain the previous status if the squawk is unchanged; an explicit
+  clear takes effect immediately. Broadcasts are not confirmed incidents.
+  Contributed by [Leo Pechnicki](https://github.com/leopechnicki) (#856).
+
 - Street Level: KartaView is the third provider, keyless. Light its chip
   (purple; off by default, one provider at a time) and zoom in below about
   6 km: the lines are the streets KartaView has photos of (z13–14 tiles from
@@ -192,6 +290,21 @@
   [TheSmokeDev](https://github.com/TheSmokeDev) for the credential handling
   from #653.
 
+- **Docker install path.** `docker compose up` builds on CI's Node 24.14.0 image,
+  pinned by digest, and serves the app on `http://localhost:4173` with no local
+  Node install. The repo is bind-mounted and the container runs as the host user
+  (never root), so `.env`,
+  `.gev-cache`, and `.gev-logs` persist on the host exactly as they do under
+  `npm run dev` — Provider Settings included. The launcher
+  (`scripts/docker-start.mjs`) trusts the container's gateway address for that
+  panel, since that is where Docker delivers the host's own browser from; the
+  opt-in behind it, `GEV_KEY_SETUP_TRUSTED_PEERS`, takes exact addresses only
+  and is unset (so loopback-only, unchanged) under every other launcher.
+  Thanks to [jklaze](https://github.com/jklaze) for finding and diagnosing the
+  container-to-host 403, and to [14traits](https://github.com/14traits),
+  [PoBruno](https://github.com/PoBruno) and [milu70hub](https://github.com/milu70hub)
+  for testing on Apple silicon, Docker Engine on Linux, and NAS hosts.
+
 - Stdio servers from one install share a panel key so a page read from one
   process can make requests through another. Concurrent malformed-key repairs
   now select one winner; unavailable storage or a busy repair retains the
@@ -216,6 +329,17 @@
   panel, resize it from any edge or corner, and double-click the header to dock
   it again. The position persists across reloads.
 
+- Add Norway's city bikes to the Bike Share layer: Oslo, Bergen and
+  Trondheim Bysykkel (Urban Sharing), Kolumbus Bysykkel in Stavanger and
+  Farte Bysykkel in Skien/Porsgrunn (Entur Mobility), and Bysykkel
+  Lillestrøm (JCDecaux), about 760 stations in all. Every feed is keyless
+  GBFS. `gbfs.urbansharing.com`, `api.entur.io` and `api.cyclocity.fr` join
+  the proxy allowlist; the last two are kept to their GBFS paths. The proxy
+  now sends `Client-Identifier: gods-eye-view` on every request and
+  `ET-Client-Name: gods-eye-view-bikeshare` to Entur, as the operators ask,
+  and accepts Entur's extensionless feed paths. Attributed under NLOD and
+  Licence Ouverte. `get_bike_share` covers the six systems too.
+
 - Add Norway's road cameras from Statens vegvesen as a CCTV pack. The camera
   list is one keyless GeoJSON request to the agency's OGC API view of its
   DATEX 3.1 CCTV table, so no DATEX account is needed. Every working camera
@@ -236,12 +360,41 @@
   is fetched over https with redirects refused and a 1 MiB body cap, and frame
   links carrying userinfo are rejected even on an allowlisted host.
 
+- Import your own GeoJSON, KML, KMZ and GPX files from DISPLAY or by dropping
+  them onto the app. Show, hide, fly to or remove each file for the session.
+  GeoJSON/GPX draw on the ground; KML retains its styles and explicit heights.
+  Large repeated-style exports use shared local pins, while recorded track
+  vertices and segment gaps stay intact. Imports respect newer camera gestures,
+  leave the shared clock alone, and report malformed or oversized files.
+  File bytes stay on the device; rendered overlays may appear in shared map
+  screenshots. Thanks to [Chase Mills](https://github.com/kapturner) (#925).
+
+- GNSS Integrity (Events, voice-addressable, share token `3`) draws navigation
+  accuracy scores from a keyless regional adsb.lol sample; aircraft-level analyst
+  queries are unavailable for these aggregate cells. Cells do not intercept
+  map clicks. Pan/zoom refreshes automatically; feed failures retain the display
+  and explain the next retry. Aircraft-reported quality includes MLAT-positioned
+  contacts after GPS loss, excludes TIS-B/MLAT-derived quality, and locates GPS-loss
+  evidence at the last good GNSS position when available. Scores discount one
+  bad aircraft per cell and retain 30 minutes of visited-view evidence; they
+  do not confirm jamming. See [method and limits](DATA_SOURCES.md#gnss-integrity).
+  Contributed by [Leo Pechnicki](https://github.com/leopechnicki) (#855).
+
 - Live HLS cameras play on a page opened over plain HTTP from another machine
   (`HOST=0.0.0.0`). The client lease id came from `crypto.randomUUID`, which
   browsers only expose in secure contexts, so starting a live feed threw
   before playback. The id now falls back to a v4 UUID built from
   `crypto.getRandomValues`, which the server's lease check accepts.
 
+- Move Google geocoding behind the local server. Forward and reverse lookups now
+  go through `/api/google/geocode` and `/api/google/reverse-geocode` with the
+  server key, joining Places and Street View. Google's Geocoding web service
+  refuses referrer-restricted keys, so the previous browser call left
+  `SECURITY.md`'s advice and working search mutually exclusive: the bundled
+  browser key had to be unrestricted for search to work at all. That key now
+  needs only the Map Tiles API and the Maps JavaScript API (Street View). Keyless sessions and the Photon/Nominatim
+  fallback order are unchanged.
+
 ## [0.2.1] — 2026-10-02 — God's Eye View through Your Agent (with security fixes and other features)
 
 - Ship each bundled data pack once. The region, marine, admin-boundary,

CONTRIBUTING.md

@@ -79,8 +79,8 @@ if its layer is later removed.
 
 New layers first use the remaining unreserved single-character digits (`0`
 through `9`), then the two-character base-36 namespace (`00` through `zz`). On the
-current published ledger, `0`, `1` and `2` are already owned, so the next
-choices are `3` through `9`, then `00`. After rebasing onto the latest `main`, run
+current published ledger, `0`, `1`, `2` and `3` are already owned, so the next
+choices are `4` through `9`, then `00`. After rebasing onto the latest `main`, run
 `npm run layer-token:next -- <layer-id>`, add that result to both the permanent
 JSON reservation ledger and registry entry, and keep the exact registered-layer
 count assertion up to date. The token is assigned against the merge-time base, not
@@ -98,7 +98,7 @@ remove only your still-unpublished layer's registry entry and ledger row so the
 local registry is valid again, then rerun `npm run layer-token:next -- <layer-id>`.
 For example, if PR A publishes `0` while PR B still provisionally uses `0`,
 PR B removes only its own provisional entry, reruns the helper, and receives
-`3`. Put `3` on PR B's registry entry and ledger row, update its pinned count
+`4`. Put `4` on PR B's registry entry and ledger row, update its pinned count
 and token tests, then rerun `npm run layer-token:check -- --base-ref origin/main`.
 An invalid duplicate ledger can fail during module import before the helper
 prints anything; never fix that by renaming or deleting PR A's published token.

DATA_SOURCES.md

@@ -23,10 +23,11 @@ How to read this:
 | **Mapillary** (vector tiles, Graph API, MapillaryJS) | Street Level: coverage lines, image cones and the embedded viewer. Coverage tiles cached for 24 h | Imagery [CC BY-SA 4.0](https://www.mapillary.com/terms); API under the Mapillary terms with a client token | "© Mapillary contributors, CC BY-SA 4.0", shown on the globe while the provider is on |
 | **Google Street View** (Maps JavaScript API) | Street Level, on the Google 3D map only (Google's terms): Google's panorama viewer and nearest-panorama lookups; panorama dates and addresses kept for the session only | Google Maps Platform ToS (your own key + billing; every panorama load is billed) | "Street View imagery © Google" on the globe while the provider is on, and Google's logo and terms in the viewer |
 | **KartaView** (`api.kartaview.org` coverage tiles and photo API, `cdn.kartaview.org` image proxy, `storage*.openstreetcam.org` photos) | Street Level: coverage lines (z13–14 JSON tiles; with the imagery filter on, KartaView's filtered PNG tiles as a mask), nearest-photo lookups, the photo's sequence and the photo itself, fetched by the browser. Keyless; nothing cached beyond the session | Imagery [CC BY-SA 4.0](https://kartaview.org/terms) (KartaView terms §4); the public API needs no token | "© KartaView contributors, CC BY-SA 4.0", shown on the globe while the provider is on |
+| **Panoramax** (`api.panoramax.xyz` meta-catalogue: vector tiles and STAC search; pictures from the federated instance holding each one, e.g. `panoramax.openstreetmap.fr`, `panoramax.ign.fr`) | Street Level: coverage lines and density points, nearest-picture lookups, a sequence's pictures as cones, and the picture itself, fetched by the browser. Keyless; tiles cached by the browser for an hour (the API's own header) | Per picture: mostly [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/), IGN's [Licence Ouverte 2.0](https://www.etalab.gouv.fr/licence-ouverte-open-licence/); the API needs no token | "© Panoramax contributors, licence per picture" on the globe while the provider is on; the caption names each picture's author and licence |
 | **OpenStreetMap** | Map and place data (roads, military areas and names, ALPR, place search, outlines); via vector tiles, hourly ALPR extract, bundled data, Nominatim and optional self-configured Overpass | [ODbL 1.0](https://opendatacommons.org/licenses/odbl/1-0/) | © OpenStreetMap contributors |
 | **Google Map Tiles API** (Photorealistic 3D Tiles) + Places/Geocoding | The 3D globe, voice scene context, and on-demand nearby installation search                                                         | Google Maps Platform ToS (proprietary, your own key + billing)                                                                                                                                                                                                                                                                                        | "Google" / "Google Maps" logo — **shown in-app**, required                                                                                  |
 | **OpenSky Network**                                                   | Primary worldwide live-flight snapshot                                                                                              | Non-commercial research/education license                                                                                                                                                                                                                                                                                                             | Schäfer et al., _"Bringing Up OpenSky"_, IPSN 2014 + opensky-network.org                                                                    |
-| **adsb.lol point API**                                                | Bounded live-flight fallback when OpenSky has no usable snapshot                                                                    | ODbL 1.0                                                                                                                                                                                                                                                                                                                                              | adsb.lol contributors; `api.adsb.lol/v2/lat/{lat}/lon/{lon}/dist/{radius}`                                                                  |
+| **adsb.lol point API**                                                | Bounded live-flight fallback when OpenSky has no usable snapshot; GNSS Integrity layer (aircraft-reported NIC/NACp and GPS-loss integrity facts, via `/api/gnss-integrity`, 60 s server cache)                                                                    | ODbL 1.0                                                                                                                                                                                                                                                                                                                                              | adsb.lol contributors; `api.adsb.lol/v2/lat/{lat}/lon/{lon}/dist/{radius}`                                                                  |
 | **adsb.lol**                                                          | Military flights + aircraft traces                                                                                                  | ODbL 1.0                                                                                                                                                                                                                                                                                                                                              | "adsb.lol" (ODbL)                                                                                                                           |
 | **adsbdb** (`api.adsbdb.com`) | Aircraft type, model name and registration by ICAO hex for enriched flights; airline and origin/destination airports for the tracked flight's callsign | No licence or rate limit is published for the service. Its own credits: aircraft data from PlaneBase, ICAO-to-N-number conversion by Guillaume Michel, and flight route data that "is the work of David Taylor, Edinburgh and Jim Mason, Glasgow, and may not be copied, published, or incorporated into other databases without the explicit permission of David J Taylor, Edinburgh" | "adsbdb — api.adsbdb.com" (courtesy); route data credited to David Taylor, Edinburgh, and Jim Mason, Glasgow |
 | **AISStream.io**                                                      | Live vessels (AIS)                                                                                                                  | Free, beta, no formal ToS; AIS is a public broadcast                                                                                                                                                                                                                                                                                                  | "AISStream.io" (courtesy)                                                                                                                   |
@@ -34,6 +35,7 @@ How to read this:
 | **The Space Devs — Launch Library 2 v2.3**                            | Recent launch, payload, stage, and recovery metadata for Space Missions (30d)                                                       | [The Space Devs terms of use](https://github.com/TheSpaceDevs/Tutorials/blob/main/faqs/faq_TSD.md#terms-of-use): data may be used and shared in any form; avoid forwarding it without added value; attribution is encouraged (not mandatory). [Official API limits](https://ll.thespacedevs.com/docs/): 15 unauthenticated calls/hour; optional token | "Launch Library 2 — The Space Devs" (courtesy attribution)                                                                                  |
 | **Esri World Imagery** (ArcGIS Online tile service)                   | The keyless satellite basemap — the default landing when no Google/ion credential is configured, and the "Esri Satellite" map stack | [Esri Master Agreement](https://www.esri.com/en-us/legal/terms/full-master-agreement): the public World Imagery service is usable in public-facing apps with attribution; no key is required for this classic endpoint, but Esri governs and can change access — an app at scale should review current ArcGIS Location Platform terms                 | "Powered by Esri — Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community" (provider carries the service's own credit line) |
 | **USGS**                                                              | Earthquakes                                                                                                                         | U.S. public domain                                                                                                                                                                                                                                                                                                                                    | "Data courtesy of the U.S. Geological Survey"                                                                                               |
+| **Environment and Climate Change Canada** (MSC GeoMet OGC API) | Air quality (AQHI) — Canadian station observations | [ECCC Data Servers End-use Licence](https://eccc-msc.github.io/open-data/licence/readme_en/) (open, attribution required, no endorsement implied) | "Contains information licensed under the Environment and Climate Change Canada Data Servers End-use Licence" |
 | **NASA GIBS** (WMTS tiles + Worldview Snapshots) and **NASA CMR** (granule catalog) | Recent Imagery layer: HLS S30/L30 (Sentinel-2, Landsat 8/9) and VIIRS true-colour tiles draped on the map, per-day thumbnails and PNG exports; the HLS granule catalog (dates, cloud, footprints) for a selected box | U.S. public domain (NASA data); keyless, browser-direct (CORS `*`); no bulk use — one 30-day catalog query per box, tiles bounded to the box, six tile requests in flight | "We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS)." — [gibs.earthdata.nasa.gov](https://gibs.earthdata.nasa.gov), [HLS](https://lpdaac.usgs.gov/products/hlss30v002/) |
 | **NIFC WFIGS** (Wildland Fire Interagency Geospatial Services, ArcGIS feature service) | Fire Perimeters layer: current interagency wildfire incident perimeters, containment, and incident facts | U.S. public domain (interagency wildland-fire data published through the [NIFC Open Data portal](https://data-nifc.opendata.arcgis.com/)); fetched keyless through `/api/fire-perimeters` (5-minute server cache) with `exceededTransferLimit` paging | "Wildfire perimeters: National Interagency Fire Center (WFIGS)" |
 | **InciWeb** (inciweb.wildfire.gov)                                    | Per-incident "InciWeb ↗" card links to official incident pages (narratives, evacuation/closure notices) | U.S. government public incident information. Links are matched best-effort by incident name and state, with incident page origin and update times checked on selection. Same-origin `/api/fire-perimeters/inciweb` routes cache the catalog for 1 hour and publication metadata for 30 minutes; linked pages remain InciWeb content | "Incident information: InciWeb (inciweb.wildfire.gov)" |
@@ -60,7 +62,11 @@ How to read this:
 | **Servei Català de Trànsit** (+ Ajuntament de Barcelona, Ajuntament de Terrassa) | CCTV camera catalog + frames, Catalonia                                                                              | [Llicència oberta d'ús d'informació - Catalunya](https://web.gencat.cat/ca/generalitat/dades-indicadors/dades-obertes/llicencies) — attribution REQUIRED                                                                                                                                                                                             | "Servei Català de Trànsit"; partner-supplied cameras also name their owner                                                                  |
 | **Statens vegvesen** (catalog `ogckart-sn1.atlas.vegvesen.no`, frames `kamera.atlas.vegvesen.no`, HLS `kamera.vegvesen.no`) | CCTV camera catalog + frames + live HLS video, Norway road cameras                                                                                   | [NLOD 2.0](https://data.norge.no/nlod/en/2.0) — attribution REQUIRED | "Contains data under the Norwegian licence for Open Government data (NLOD) distributed by Statens vegvesen" |
 | **NYC DOT Traffic Management Center** (`webcams.nyctmc.org`) | CCTV camera catalog + frames, New York City five boroughs | NYC DOT requires developers to sign a [data-sharing agreement](https://www.nyc.gov/html/dot/html/about/datafeeds.shtml) for the camera feed. **Off by default**; enable only under your own agreement | "NYC DOT Traffic Management Center" + NYC DOT's required application disclaimer (in the Data attribution popover) |
-| **GBFS (Lyft / BCycle)**                                              | Bikeshare availability                                                                                                              | Per-feed (attribution-only)                                                                                                                                                                                                                                                                                                                           | Credit the operator (e.g. Austin BCycle) + its `license_url`                                                                                |
+| **GBFS (Lyft / BCycle / Social Bicycles / PBSC)**                     | Bikeshare availability                                                                                                              | Per-feed (attribution-only)                                                                                                                                                                                                                                                                                                                           | Credit the operator (e.g. Austin BCycle) + its `license_url`                                                                                |
+| **Bike Share Toronto** (`toronto.publicbikesystem.net`) | Bikeshare station availability, Toronto | Operator GBFS feed. No licence is published: the City's open-data package declares none and the feed has no `license_url`. Attribution is given to the operator. | "Bike Share Toronto (Toronto Parking Authority)" |
+| **Oslo / Bergen / Trondheim Bysykkel** (Urban Sharing, `gbfs.urbansharing.com`) | Bikeshare availability, Oslo, Bergen and Trondheim city bikes. Keyless GBFS; the proxy sends the `Client-Identifier` header the operators ask for | [NLOD 2.0](https://data.norge.no/nlod/en/2.0) — attribution REQUIRED ([Oslo](https://oslobysykkel.no/en/open-data/realtime), [Bergen](https://bergenbysykkel.no/en/apne-data/sanntid), [Trondheim](https://trondheimbysykkel.no/en/open-data/realtime)) | "Contains data under the Norwegian licence for Open Government data (NLOD) made available by Oslo Bysykkel, Bergen Bysykkel and Trondheim Bysykkel" |
+| **Kolumbus / Farte Bysykkel** (Entur Mobility, `api.entur.io/mobility/v2/gbfs`) | Bikeshare availability, Kolumbus Bysykkel (Stavanger/Nord-Jæren) and Farte Bysykkel (Skien/Porsgrunn). Keyless GBFS; the proxy sends the `ET-Client-Name` header Entur requires and is limited to Entur's GBFS paths | [NLOD](https://data.norge.no/nlod/en/2.0) per the [Entur Mobility API docs](https://developer.entur.org/pages-mobility-docs-mobility-v2) — attribution REQUIRED | "Contains data under the Norwegian licence for Open Government data (NLOD) made available by Entur (Kolumbus Bysykkel, Farte Bysykkel)" |
+| **JCDecaux Cyclocity** (`api.cyclocity.fr`) | Bikeshare availability, Bysykkel Lillestrøm. Keyless GBFS; the proxy is limited to JCDecaux contract paths | [Licence Ouverte / Etalab](https://developer.jcdecaux.com/files/Open-Licence-fr.pdf) (the feed's `license_url`) — attribution REQUIRED | "Bysykkel Lillestrøm: JCDecaux, Licence Ouverte" |
 | **MBTA / MassDOT** (cdn.mbta.com) | Transit layer live vehicles and up to 15 minutes of recently observed positions, Greater Boston | MBTA / MassDOT open realtime vehicle data, used for the live view and up to fifteen minutes of recently observed positions; published for developer use and not against their use. | Attribution to MBTA / MassDOT (courtesy text) |
 | **CapMetro** (data.texas.gov) | Transit layer live vehicles, Austin TX | CapMetro open realtime vehicle data, used for the live view; published for developer use and not against their use. | Attribution to CapMetro (courtesy text) |
 | **Metro Transit** (Metropolitan Council) | Transit layer live vehicles, Minneapolis–St Paul | Metro Transit / Metropolitan Council open realtime vehicle data, used for the live view; published for developer use and not against their use. | Attribution to Metro Transit / Metropolitan Council (courtesy text) |
@@ -78,9 +84,52 @@ The optional Local ADS-B layer and the broadcast-FM receiver use radio you recei
 
 ### Notes on the live sources
 
+- **Air quality (ECCC AQHI).** Keyless. Read from the MSC GeoMet OGC API (`api.weather.gc.ca`): the `aqhi-stations` catalog plus `aqhi-observations-realtime`. **Coverage is Canada only** — ECCC is the single registered provider, and the layer row and readout card both say so. Roughly 134 stations across ECCC's five administrative zones (Atlantic, Quebec, Ontario, Prairies & North, Pacific & Yukon). AQHI publishes hourly, so readings poll every 20 minutes and the station catalog, which changes a few times a year, is refetched only every 12 hours. Observations are requested with `latest=true`; without it the collection returns the full history, roughly 2,000 rows nationally. Readings older than six hours are dropped rather than displayed as current.
+
+  Readings are stored as `{ provider, scale, value, band }` rather than a bare number, because air-quality indices are not interchangeable: AQHI runs 1-10+ on health risk, the US AQI runs 0-500 on concentration breakpoints, and Europe's EAQI is a five-step category. Naming the index a value belongs to is what lets another network be added later without inventing a shared numeric meaning that does not exist.
+
+  AQHI is reported by ECCC as an integer from 1 to 10 with an open-ended "10+" above that. The API returns the underlying decimal (1.08, 2.32); the layer rounds to the published form rather than displaying a precision the index does not claim.
+
+  **Quebec is thinly represented**, and that is upstream rather than a filter here: the province runs its own Info-Smog program, so only a handful of Quebec stations appear in ECCC's national feed. The reporting station count also varies hour to hour as stations report or fall silent.
+
 - **Google Maps Platform.** You supply your own API key and are bound by [Google's ToS](https://cloud.google.com/maps-platform/terms). Google Maps Content (tiles, geocodes, places) **may not be cached, stored, rehosted, or committed** — this app only ever uses it live, which is the compliant pattern. The "Google" attribution is displayed on the globe and must stay visible. Restrict your key (see [SECURITY.md](SECURITY.md)).
 - **OpenSky Network.** Its license is **non-commercial**, and operational use of the REST API in a live product can require a prior written agreement with OpenSky — even for non-profit/government use. If you deploy this commercially, contact OpenSky for your own terms. The flights layer is a toggle and runs anonymously by default.
 - **adsb.lol flight fallback.** When OpenSky is unavailable and no last-good OpenSky response exists, the server requests a cached, capped 250 nm adsb.lol point snapshot around the current camera subpoint. This is regional observed context, not worldwide completeness; provenance is exposed in the Flights stats/context row. Military ICAOs remain reconciled through the existing dedicated military registry rather than duplicated.
+<a id="gnss-integrity"></a>
+
+- **GNSS integrity (adsb.lol).** A separate keyless point request samples a 250 nm
+  circle around the screen centre, snapped once to whole degrees. This does not
+  reuse the Flights fallback cache. Cache lifetime is 60 s; 429 backoff is capped
+  at one hour and other upstream failures cool down for 15 s. Future access may
+  require feeder keys under the [API terms](https://github.com/adsblol/api).
+  Airborne decoded ADS-B v1/v2 aircraft with a known 0–60 s position age qualify,
+  including MLAT-positioned aircraft still broadcasting their own quality.
+  TIS-B/MLAT-derived NIC and NACp are ignored. GPS-loss evidence uses
+  `gpsOkLat/gpsOkLon` when present, otherwise the current known position.
+  The proxy strips identity metadata and tags its response with classifier
+  `gev-nic-nacp-v2`; rows carry only integrity facts.
+
+  The method has three separately attributed parts:
+  1. **GEV classifier (unvalidated):** GPS-loss flag, aircraft-reported NACp < 8,
+     or aircraft-reported NIC < 7 except NIC 0 with NACp ≥ 10 (unknown containment).
+     The numerical minima come from US 14 CFR 91.227(c), not a published jamming
+     classifier. Readsb's [JSON contract](https://github.com/wiedehopf/readsb/blob/dev/README-json.md)
+     describes the quality field origins and GPS-loss flag.
+  2. **GPSJAM aggregation:** score = `100 × max(0, bad − 1) / total`, with percent
+     bands < 2, 2–10, > 10. One bad aircraft is discounted. This is not the raw
+     share of bad aircraft. See the [GPSJAM FAQ](https://gpsjam.org/faq).
+  3. **GEV window:** 30 minutes over visited views, at least three aircraft per
+     0.5° cell. These bands were developed for daily totals; with fewer than ten
+     observations a cell can skip the middle band. Source timestamps date evidence
+     even through cache replays, and degraded evidence expires independently.
+
+  Medium/high cells report navigation-integrity anomalies. Interference is one
+  possible explanation, not a detected or located emitter. Avionics faults and
+  manoeuvring military trainers can also lower reported accuracy. Blank areas
+  can be outside coverage or lack enough observations. Attribution: adsb.lol
+  contributors, ODbL 1.0; GPSJAM for aggregation only.
+
+
 - **adsbdb enrichment.** `/api/adsbdb` resolves an ICAO hex to aircraft type, model name and registration, and the tracked flight's callsign to an airline and an origin/destination pair. Fan-out is deliberately small because adsbdb is a free community API that publishes no quota: at most 4 requests in flight, dispatches dripped to roughly 5/s, and each key asked for at most once per session, with route lookups reserved for the tracked aircraft. The dev-server proxy caches each key for 24 hours in `.gev-cache/adsbdb.json`, negative answers included, so fresh entries survive server restarts. That gitignored cache remains local to the deployment and is not bundled with this repo. adsbdb publishes no general service license; its README says the route data may not be copied, published, or incorporated into other databases without the explicit permission of David J Taylor, Edinburgh. Deployers are responsible for obtaining any permission their use requires. Enrichment is best-effort and fail-silent — a flight that gets no answer keeps what the flight feed already gave it.
 - **Launch Library 2.** `/api/launches` makes a server-side rolling-30-day query against the supported v2.3 detailed launch endpoint, caches successful responses for 15 minutes in memory and on disk, and serves the last successful response during a throttle or transient outage. Anonymous access is limited to 15 calls/hour; deployments can provide `LL2_API_TOKEN` for authenticated access. The Space Devs' published terms permit using and sharing the API data in any form, ask users not to forward it without adding value, disclaim complete accuracy, and encourage—but do not require—attribution. This app keeps a courtesy credit. Payload and stage/recovery records are shown only when supplied. Failed launches expose their source status and never receive fallback orbit geometry or a live/estimated marker. LL2 supplies launch context and event timing, not continuous ascent telemetry or live orbital state.
 - **TfL JamCams.** The camera list comes from the keyless `api.tfl.gov.uk` endpoint (an optional `TFL_APP_KEY` raises its rate limit); frames come from TfL's public S3 bucket. The "Powered by TfL Open Data" attribution is required by TfL's terms and is registered in the Data attribution popover.

Dockerfile

@@ -0,0 +1,45 @@
+# syntax=docker/dockerfile:1
+#
+# The dev server is the whole app: Vite serves the client AND runs the API
+# proxies (ADS-B, AIS, Overpass, OpenAI Realtime, ...) as middleware, so there
+# is nothing else to containerise. See compose.yaml for the usual entry point.
+# Same Node as CI (package.json engines, .github/workflows), pinned by digest.
+FROM node:24.14.0-slim@sha256:d8e448a56fc63242f70026718378bd4b00f8c82e78d20eefb199224a4d8e33d8
+
+# Puppeteer is only used by the QA scripts; skip its ~150MB Chromium download.
+ENV PUPPETEER_SKIP_DOWNLOAD=1
+
+# `npm test` builds fixtures with `git init`, so the suite cannot run in a
+# container without it (71 failures on node:24-slim, all ENOENT on git).
+RUN apt-get update   && apt-get install -y --no-install-recommends git   && rm -rf /var/lib/apt/lists/*
+# The repo is bind-mounted, so inside the container it can show an owner other
+# than the user the container runs as - always, on Docker Desktop. git then
+# refuses it as "dubious ownership", which fails the tests that shell out to
+# git. It is the user's own checkout, so trust that one path.
+RUN git config --system --add safe.directory /app
+
+# Never run as root. The image's own user is `node` (1000); compose overrides
+# it with the host user so bind-mounted files stay yours.
+WORKDIR /app
+RUN chown node:node /app
+USER node
+
+COPY --chown=node:node package.json package-lock.json ./
+RUN npm ci
+# node_modules belongs to `node`, but compose may run as another UID. Vite only
+# needs to write its dep-optimizer cache, so open up those two directories
+# rather than chowning a few hundred MB to a UID we cannot know at build time.
+RUN mkdir -p node_modules/.vite && chmod 777 node_modules node_modules/.vite
+
+COPY --chown=node:node . .
+
+# Bind to all interfaces, otherwise the published port hits nothing. This does
+# not widen the Host allowlist: IP addresses and localhost are accepted, other
+# names only via GEV_ALLOWED_HOSTS (see build/allowedHosts.js).
+ENV HOST=0.0.0.0
+ENV PORT=4173
+EXPOSE 4173
+# The launcher is `npm run dev` plus one step: it trusts the container's
+# gateway address for Provider Settings, because that is where Docker delivers
+# the host's own browser from (never 127.0.0.1). See scripts/docker-start.mjs.
+CMD ["node", "scripts/docker-start.mjs"]

README.md

@@ -153,6 +153,72 @@ See [docs/PERFORMANCE.md](docs/PERFORMANCE.md).
 **macOS shortcut:** `./scripts/dev-fresh.sh` clears the Vite cache and pulls any
 configured keys straight from the Keychain. It starts keyless too.
 
+### Path 3 — Docker
+
+No Node install needed; the container publishes the same dev server.
+
+```bash
+git clone https://github.com/bilawalsidhu/gods-eye-view.git
+cd gods-eye-view
+docker compose up
+```
+
+Open **`http://localhost:4173`** as above. Everything the app saves stays in the folder you cloned, so `docker compose down` never loses anything:
+
+- `.env` - your API keys, whether saved from Provider Settings or typed in by hand
+- `.gev-cache/` - downloaded map and satellite data, so later starts are faster
+- `.gev-logs/` - logs
+
+Back up that folder and you've backed up everything; delete `.env` to forget your keys. Source edits still hot-reload. The port is published to `127.0.0.1` only, so the default matches the native one.
+
+The local MCP server and ChatGPT OAuth voice are not available under Docker; use an OpenAI API key for voice.
+
+Publishing it wider is the [Sharing an instance](#-sharing-an-instance) opt-in, and it hands out **Provider Settings** too: the launcher trusts the container gateway as this machine, and a wider publish delivers everyone else from that same address. For an instance you mean to share, put the keys in `.env` by hand instead. [SECURITY.md](SECURITY.md) has the detail.
+
+When you widen the publish, also set `GEV_KEY_SETUP_TRUSTED_PEERS=none` so the launcher trusts no gateway address.
+
+<details>
+<summary>Running on Linux, a NAS, or behind a reverse proxy</summary>
+
+Run it as the user who should own the files it writes. `id` shows the numbers; for yourself on Linux:
+
+```bash
+env UID=$(id -u) GID=$(id -g) docker compose up
+```
+
+On a NAS, clone onto the share you want the data on and use the share owner's ids:
+
+```bash
+cd /volume1/docker
+git clone https://github.com/bilawalsidhu/gods-eye-view.git
+cd gods-eye-view
+env UID=1026 GID=100 docker compose up -d
+```
+
+Keep the `env`: bash treats `UID` as read-only, so a plain `UID=1026` in front of a command is silently ignored. If the container can't write the checkout, it says so at start. Docker Desktop on macOS and Windows maps ownership for you.
+
+Behind a reverse proxy, put your keys in `.env` or pass them as environment variables - Provider Settings refuses proxied requests on purpose - and add the hostname you serve it on, for example `GEV_ALLOWED_HOSTS=globe.example.lan` (see [Sharing an instance](#-sharing-an-instance)).
+
+</details>
+
+<details>
+<summary>IPv6-only networks, rebuilding, and the test suites</summary>
+
+The launcher reads the IPv4 default gateway, so an IPv6-only Docker network
+finds none: it logs `No default gateway; Provider Settings stays loopback-only`
+and the panel refuses every save. Put your keys in `.env` by hand there, or name
+the gateway yourself with `GEV_KEY_SETUP_TRUSTED_PEERS` after reading
+[SECURITY.md](SECURITY.md).
+
+`node_modules` deliberately stays inside the image, so it survives in an
+anonymous volume across restarts: after a `git pull` that changes dependencies,
+recreate it with `docker compose down -v && docker compose up --build`. The
+image also skips Puppeteer's Chromium download, which keeps it small but leaves
+`npm run test:track` to the host — `npm run build` and `npm test` run fine in
+the container.
+
+</details>
+
 ### Then power it up — in the app, not in a file
 
 Keys are upgrades, not prerequisites. When you want one, click the **POWER UP**
@@ -303,14 +369,17 @@ Twenty layers and map sources. **Eighteen have a keyless path.** Some offer addi
 | --------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------- | --------------------------------------------------------------------------------------------------- |
 | 🗺️ **Map Stack**            | Esri satellite imagery, Google Photorealistic 3D, OSM, plus additional ion-hosted stacks                                                                                                                                                                                                                                                                                            | Esri / Google / Ion / OSM               | 🟢 Esri satellite + OSM · 🟡 ion-hosted Google 3D + world terrain · 🔴 direct Google + place search |
 | ✈️ **Live Flights**         | 11,000+ live aircraft + route history                                                                                                                                                                                                                                                                                                                                               | OpenSky + adsb.lol                      | 🟢 (🟡 optional for more polling credits)                                                           |
-| 🎖️ **Military Flights**     | ADS-B military traffic in amber                                                                                                                                                                                                                                                                                                                                                     | adsb.lol                                | 🟢                                                                                                  |
+| 🎖️ **Military Flights**     | ADS-B military traffic in amber, emergency broadcasts in red                                                                                                                                                                                                                                                                                                                                                     | adsb.lol                                | 🟢                                                                                                  |
+| 📡 **GNSS Integrity** | Regional navigation accuracy scores; anomalies do not confirm interference | adsb.lol, GPSJAM aggregation | 🟢 |
+| 🔥 **Fire Perimeters** | Incident boundaries and reported containment | WFIGS / NIFC | 🟢 |
 | 🚢 **Live Vessels**         | Thousands of ships worldwide                                                                                                                                                                                                                                                                                                                                                        | AISStream                               | 🟡                                                                                                  |
 | 🛰️ **Satellites**           | 838-object catalog, color-coded by class with a live legend — the **DENSE** chip drops in the whole Starlink shell                                                                                                                                                                                                                                                                  | CelesTrak                               | 🟢                                                                                                  |
 | 🌍 **Earthquakes**          | Global seismic activity, last 24h                                                                                                                                                                                                                                                                                                                                                   | USGS                                    | 🟢                                                                                                  |
+| ◍ **Air quality**           | Live AQHI on the published 1–10+ health-risk scale, with a Weather-panel card showing the band legend and the highest readings in view. **Canada only** — ECCC is the first registered provider | ECCC MSC GeoMet                          | 🟢                                                                                                  |
 | 🚗 **Traffic**              | Simulated vehicles on OSM roads. With TomTom, live flow speeds drive the simulation and congestion colors below ~8 km; individual vehicle positions are not live observations                                                                                                                                                                                                       | TomTom + OSM                            | 🟢 simulation · 🟡 live flow speeds                                                                 |
 | 📹 **CCTV Mesh**            | ~3,900 public cameras projected _into_ the 3D space — Austin · Texas (TxDOT) · California (Caltrans) · London (TfL) · Ontario (511) · Finland (Fintraffic) · British Columbia (DriveBC) · Estonia (Tallinn, Tarktee) · Delaware (DelDOT live video) · New South Wales (Live Traffic NSW) · Calgary · Norway (Statens vegvesen) · Catalonia (Servei Català de Trànsit), plus opt-in New York City (NYC DOT TMC, needs your own NYC DOT agreement). Positions are published; poses are estimated priors **you calibrate by dragging a gizmo on the camera itself** | City APIs                               | 🟢                                                                                                  |
 | 📷 **Mapped ALPR Cameras**  | License-plate-reader camera locations tagged by OpenStreetMap contributors, loaded one city-sized view at a time, with **SHOW NEAREST**. Locations and tags only: no plate data, no video                                                                                                                                                                                           | OpenStreetMap (incl. DeFlock mapping)   | 🟢                                                                                                  |
-| 📷 **Street Level**         | Street-level photos behind one panel, one chip per provider: coverage on the streets, image cones, an embedded viewer and **FOLLOW**. Mapillary, Google Street View and KartaView; Panoramax planned                                                                                                                                                                                | Mapillary · Google · KartaView          | 🟢 KartaView · 🟡 Mapillary token · 🔴 Google Maps key                                                |
+| 📷 **Street Level**         | Street-level photos behind one panel, one chip per provider: coverage on the streets, image cones, an embedded viewer and **FOLLOW**. Mapillary, Google Street View, KartaView and Panoramax | Mapillary · Google · KartaView · Panoramax | 🟢 KartaView, Panoramax · 🟡 Mapillary token · 🔴 Google Maps key |
 | 📻 **Radio**                | Geolocated world radio with an **analog tuner** — drag the needle across up to 750 stations and the globe flies to each broadcaster                                                                                                                                                                                                                                                 | Radio Browser / broadcasters            | 🟢                                                                                                  |
 | 🚌 **Transit**              | Live buses, trams, metros, trains and ferries with delayed playback between reports, selected-vehicle trails, and mode-coloured DETECT labels — Boston, Austin, Minneapolis, Helsinki, the Netherlands, Norway, South East Queensland                                                                                                                                               | Operator GTFS-Realtime feeds            | 🟢                                                                                                  |
 | 🚲 **Bikeshare**            | Live station availability                                                                                                                                                                                                                                                                                                                                                           | GBFS                                    | 🟢                                                                                                  |
@@ -348,13 +417,13 @@ _The Space Missions layer replaying a Falcon 9 ascent — labeled `RECONSTRUCTED
 
 ## 📷 Street Level
 
-> Street-level photos from any provider in one panel. This build ships **Mapillary** (a free client token), **Google Street View** (your Google Maps key) and **KartaView** (no key).
+> Street-level photos from any provider in one panel. This build ships **Mapillary** (a free client token), **Google Street View** (your Google Maps key), **KartaView** and **Panoramax** (no key).
 
-**Setup.** At [mapillary.com/dashboard/developers](https://www.mapillary.com/dashboard/developers), register an application with **Read** access and copy its **Client Token** (`MLY|…`). Paste it into **POWER UP → Mapillary**, or set `MAPILLARY_CLIENT_TOKEN` in `.env` and restart. Without it the panel reads **KEY REQUIRED**. **Google Street View** uses `GOOGLE_MAPS_API_KEY` with the **Maps JavaScript API** enabled for it in Google Cloud; its chip starts off, since every panorama is billed to the key. **KartaView** needs nothing: its public API is keyless.
+**Setup.** At [mapillary.com/dashboard/developers](https://www.mapillary.com/dashboard/developers), register an application with **Read** access and copy its **Client Token** (`MLY|…`). Paste it into **POWER UP → Mapillary**, or set `MAPILLARY_CLIENT_TOKEN` in `.env` and restart. Without it the panel reads **KEY REQUIRED**. **Google Street View** uses `GOOGLE_MAPS_API_KEY` with the **Maps JavaScript API** enabled for it in Google Cloud; its chip starts off, since every panorama is billed to the key. **KartaView** and **Panoramax** need nothing: their public APIs are keyless.
 
-**Use.** Turn on **Street Level** under DATA LAYERS → Cameras, or with the pill in the STREET LEVEL panel header. Each provider has a chip in its own colour (Mapillary green), and one is lit at a time: lighting one switches the others off. Mapillary, which is free, is lit by default. The **IMAGERY** (ALL / 360° / FLAT) and **SINCE** filters apply to Mapillary and KartaView; Street View panoramas are all 360°, so with Street View lit the filters and legend are hidden. Click a coverage line for its image cones and a cone to open the photo. Light **KARTAVIEW** (purple) and zoom in below about 6 km: its lines are the streets KartaView has photos of, and a click on one opens the photo nearest the click, flat or 360° (drag to look around), with cones along its drive; **‹ ›** or ← → step through the drive (Shift+← →, ↑ ↓ and + − look around a 360° photo; pinch zooms on a phone). Photos KartaView has archived are skipped, and where all are archived the panel says so. For KartaView, **SINCE** goes by upload date, as KartaView's own map does (it can filter by nothing else), and the panel notes it under the slider; KartaView filters its lines on its own server, and a filtered area KartaView has not drawn before can take several seconds, and the unfiltered lines show meanwhile. On the **Google 3D** map (Google's terms keep Street View off other maps, where it does not appear), light **GOOGLE STREET VIEW** and click a street from below 3 km, or press **OPEN STREET VIEW** for the view centre, to open Google's panorama there; step along its arrows. Above the photo: **EXPAND**, **FIT / FILL** (Mapillary, and flat KartaView photos), and **FOLLOW** (the globe camera follows the photo's view; Google 3D map only). The caption links to the image on the provider's site, and the globe credits each provider that is on ("© Mapillary contributors, CC BY-SA 4.0", "Street View imagery © Google", "© KartaView contributors, CC BY-SA 4.0"). KartaView's own photo pages fail for signed-out visitors, so its link opens the full-size photo.
+**Use.** Turn on **Street Level** under DATA LAYERS → Cameras, or with the pill in the STREET LEVEL panel header. Each provider has a chip in its own colour (Mapillary green), and one is lit at a time: lighting one switches the others off. Mapillary, which is free, is lit by default. The **IMAGERY** (ALL / 360° / FLAT) and **SINCE** filters apply to Mapillary, KartaView and Panoramax; Street View panoramas are all 360°, so with Street View lit the filters and legend are hidden. Click a coverage line for its image cones and a cone to open the photo. Light **KARTAVIEW** (purple) and zoom in below about 6 km: its lines are the streets KartaView has photos of, and a click on one opens the photo nearest the click, flat or 360° (drag to look around), with cones along its drive; **‹ ›** or ← → step through the drive (Shift+← →, ↑ ↓ and + − look around a 360° photo; pinch zooms on a phone). Photos KartaView has archived are skipped, and where all are archived the panel says so. For KartaView, **SINCE** goes by upload date, as KartaView's own map does (it can filter by nothing else), and the panel notes it under the slider; KartaView filters its lines on its own server, and a filtered area KartaView has not drawn before can take several seconds, and the unfiltered lines show meanwhile. Light **PANORAMAX** (orange) for the open, federated commons (strongest in France and Belgium): from orbit its dots show where it has pictures, and below about 60 km its lines are sequences. A click on a line opens that sequence's picture nearest the click without moving the camera, flat or 360°, with cones along the sequence around it; **‹ ›** or ← → step through it, and both filters apply. Its caption names the picture's authors (or the instance holding it) and licence (mostly CC BY-SA 4.0; pictures on the IGN instance are Licence Ouverte 2.0). On the **Google 3D** map (Google's terms keep Street View off other maps, where it does not appear), light **GOOGLE STREET VIEW** and click a street from below 3 km, or press **OPEN STREET VIEW** for the view centre, to open Google's panorama there; step along its arrows. Above the photo: **EXPAND**, **FIT / FILL** (Mapillary, and flat KartaView and Panoramax photos), and **FOLLOW** (the globe camera follows the photo's view; Google 3D map only). The caption links to the image on the provider's site, and the globe credits each provider that is on ("© Mapillary contributors, CC BY-SA 4.0", "Street View imagery © Google", "© KartaView contributors, CC BY-SA 4.0", "© Panoramax contributors, licence per picture"). KartaView's own photo pages fail for signed-out visitors, so its link opens the full-size photo.
 
-Drag the panel header to float the panel, and resize it from any edge. Double-click the header or collapse it to put it back in the rail. Share links carry the provider switches and filters (`0.m.0` Mapillary off, `0.m.0_0.r.google-1` Street View on, `0.m.0_0.r.google-0*kartaview-1` KartaView on, as the app writes it (`0.m.0_0.r.kartaview-1` works too; a link that leaves out `m` keeps Mapillary, the default, lit), `0.p.p` panoramas only, `0.s.365` the last year). To add a provider, implement the contract in `src/layers/streetLevel/registry.js` and register it in `src/app/layers/streetLevel.js`.
+Drag the panel header to float the panel, and resize it from any edge. Double-click the header or collapse it to put it back in the rail. Share links carry the provider switches and filters (`0.m.0` Mapillary off, `0.m.0_0.r.google-1` Street View on, `0.m.0_0.r.google-0*kartaview-1*panoramax-0` KartaView on and `0.m.0_0.r.google-0*kartaview-0*panoramax-1` Panoramax on, as the app writes them (`0.m.0_0.r.kartaview-1` and `0.m.0_0.r.panoramax-1` work too; a link that leaves out `m` keeps Mapillary, the default, lit), `0.p.p` panoramas only, `0.s.365` the last year). To add a provider, implement the contract in `src/layers/streetLevel/registry.js` and register it in `src/app/layers/streetLevel.js`.
 
 ## 🎖️ Field Missions
 

SECURITY.md

@@ -21,19 +21,19 @@ The golden rule: **secret-bearing API keys stay on the server side.** The dev/pr
 | ChatGPT sign-in through Codex (optional, experimental) | Codex's own `auth.json` (`CODEX_HOME`, default `~/.codex`); GEV reads it server-side and never writes or refreshes it | Only after **USE CHATGPT OAUTH** is selected in Provider Settings: the server mints the same ephemeral Realtime token with the ChatGPT access token, for loopback clients only |
 | `AISSTREAM_API_KEY` | Server only | Server holds the AISStream websocket; browser polls the same-origin `/api/vessels` cache |
 | OpenSky OAuth (`OPENSKY_CLIENT_ID/SECRET`) | Server only | Server mints + refreshes the token behind `/api/flights` |
-| `GOOGLE_MAPS_SERVER_API_KEY` (optional, #33) | Server only | Server calls Places (`/api/google/nearby-places`, `/api/google/text-search`) and the Street View fallback with this key; falls back to `GOOGLE_MAPS_API_KEY` when unset |
+| `GOOGLE_MAPS_SERVER_API_KEY` (optional, #33) | Server only | Server calls Places (`/api/google/nearby-places`, `/api/google/text-search`), Geocoding (`/api/google/geocode`, `/api/google/reverse-geocode`) and the Street View fallback with this key; falls back to `GOOGLE_MAPS_API_KEY` when unset |
 
 ### Three deliberately client-side keys — restrict them
 
 These are designed to be used directly in the browser (like a Mapbox public token). They are injected into the client bundle via Vite's `define`, so they **will** be visible in browser devtools. Scope and restrict them rather than trying to hide them:
 
-1. **Google Maps API key** — loads Photorealistic 3D Tiles directly and powers GEV place search and Street View (Maps JavaScript API; add it to the key's API restrictions). **Restrict it** (HTTP referrer + API restriction to the required Google APIs) in the Google Cloud Console. An unrestricted key in a public deployment can be abused and billed to you.
+1. **Google Maps API key** — loads Photorealistic 3D Tiles directly and powers Street View (Maps JavaScript API; add it to the key's API restrictions). **Restrict it** (HTTP referrer + API restriction to the required Google APIs) in the Google Cloud Console. An unrestricted key in a public deployment can be abused and billed to you. Restrict it to the **Map Tiles API and Maps JavaScript API only**: a referrer restriction applies to the Maps JavaScript API and the client SDKs, not to the web services, so a key carrying Geocoding under one is refused with `API keys with referer restrictions cannot be used with this API`. Search does not need it — geocoding goes through the server proxies above (#363).
 2. **Cesium ion token** (`CESIUM_ION_TOKEN`, optional — for ion-hosted Google Photorealistic 3D Tiles, Bing world imagery, and world terrain) — used as `Cesium.Ion.defaultAccessToken` client-side. Use a public **`assets:read`** token with **URL restrictions** for any hosted deployment. The Community plan has eligibility and usage limits; a public token is not a secret, but it can still consume the account's quota.
 3. **Mapillary client token** (`MAPILLARY_CLIENT_TOKEN`, optional, Street Level) — used by the MapillaryJS viewer and Graph API lookups in the browser, and by the server's coverage-tile proxy. Mapillary client tokens are meant for browser use.
 
 > The explicit browser `define` block in `build/vite.js` controls exactly what reaches the client: only these three keys. Everything else stays server-side.
 
-**Places and Street View never needed to be on that list** (#33): they're called from the server-side proxies in the table above, which use `GOOGLE_MAPS_SERVER_API_KEY` when it's set. Splitting it from the browser-exposed key lets each key's Google Cloud restriction actually match what it does — the browser key referrer-restricted to the APIs the client loads, the server key IP-restricted (never a referrer, since it never leaves your server) to Places + Street View Static — instead of one key that has to be either over-permissioned or broken for one of its two jobs. A single shared `GOOGLE_MAPS_API_KEY` still works if you don't split them; it just has to cover every API both sides use.
+**Places, Geocoding and the Street View Static fallback never needed to be on that list** (#33, #363): they're called from the server-side proxies in the table above, which use `GOOGLE_MAPS_SERVER_API_KEY` when it's set. Splitting it from the browser-exposed key lets each key's Google Cloud restriction actually match what it does — the browser key referrer-restricted to Map Tiles + Maps JavaScript API, the server key IP-restricted (never a referrer, since it never leaves your server) to Places + Geocoding + Street View Static — instead of one key that has to be either over-permissioned or broken for one of its jobs. A single shared `GOOGLE_MAPS_API_KEY` still works if you don't split them, but then it cannot carry a referrer restriction at all: the web services refuse one, and search would be the half that breaks.
 
 Never commit real keys. `.env` is gitignored; only `.env.example` (placeholder names) is tracked. On macOS `dev-fresh.sh` can read keys from the Keychain; plain Vite uses env vars or a local `.env`, and Pinokio uses its ignored app `ENVIRONMENT` file.
 
@@ -87,6 +87,17 @@ The dev server is a **key broker**: every server-side key above is spendable by
 - **Local-only by default.** `./scripts/dev-fresh.sh` (and the Vite config itself) bind to `localhost`, so only your machine can reach the server — and only local names are accepted (`allowedHosts` stays restricted, which also blunts DNS-rebinding tricks). Binding to all interfaces keeps that restriction: IP addresses and `localhost` work, and LAN hostnames must be listed in `GEV_ALLOWED_HOSTS` (for example `GEV_ALLOWED_HOSTS=globe.lan`); suffix and wildcard entries are ignored.
 - **LAN exposure is an explicit opt-in**: `HOST=0.0.0.0 ./scripts/dev-fresh.sh`. The launcher prints a prominent warning plus your LAN URL. Understand what opting in means: **every device on that network can drive the proxies and spend your OpenAI / Google / OpenSky / AISStream / TomTom / FIRMS quota** for as long as the server runs. Do this only on networks you trust.
 - **App-level throttles (on by default):** `GEV_RATELIMIT_OPENAI_PER_MIN` (default `30`) and `GEV_RATELIMIT_GOOGLE_PER_MIN` (default `120`) — the values the Pinokio build already ships — cap the cost-bearing endpoints per client IP per minute (over-limit requests receive a sanitized `429`). Both defaults sit well above what the app itself generates; set either to exactly `0` to run unthrottled. They are **per-IP, process-local, in-memory guards** — they reset on restart, a caller with several addresses gets a bucket per address, and they are **not billing caps**.
+- **Docker trusts one address, and only because the port is on loopback.**
+  Docker delivers the host's own browser to the container from the container
+  network's gateway, never from `127.0.0.1`, so a loopback-only Provider
+  Settings refuses the machine running it. `scripts/docker-start.mjs` therefore
+  sets `GEV_KEY_SETUP_TRUSTED_PEERS` to exactly that gateway address. The list
+  takes exact addresses only (no wildcards, prefixes or hostnames), is unset
+  under every other launcher, and relaxes none of the sharing, Host, Origin,
+  Content-Type or proxy-header checks. It is safe precisely because
+  `compose.yaml` publishes on `127.0.0.1`: **widen that mapping and every LAN
+  client arrives from the same gateway address, which hands them Provider
+  Settings too.** Treat publishing beyond loopback as the LAN opt-in above.
 - **Provider-side budgets are the real backstop.** For hard spend protection, configure limits where the money is: OpenAI platform usage limits, Google Cloud budget alerts + per-API quotas, and equivalent controls for any other keyed provider.
 - **Pinokio LAN and Cloudflare sharing are refused.** The current supported
   Pinokio release re-reads sharing state when an app registers its Open URL and

compose.yaml

@@ -0,0 +1,21 @@
+services:
+  gods-eye-view:
+    build: .
+    # Everything the app writes (.env with your keys, .gev-cache, .gev-logs)
+    # lands in the bind-mounted repo, so run as you, not root. UID/GID are
+    # unset on Docker Desktop, where the 1000 fallback is ignored anyway.
+    user: "${UID:-1000}:${GID:-1000}"
+    ports:
+      # Publish to loopback only. Docker's default ("4173:4173") would bind
+      # every host interface, which quietly turns the LAN warning in the README
+      # into the default: this server brokers whatever provider keys you have
+      # configured to anyone who can reach it. Widen this deliberately, not by
+      # accident.
+      - "127.0.0.1:4173:4173"
+    volumes:
+      # Bind the source so edits hot-reload and so keys pasted into the setup
+      # UI land in the .env on your host instead of vanishing with the
+      # container. node_modules stays in the image: sharp and friends are
+      # compiled for Linux and must not be shadowed by a host install.
+      - .:/app
+      - /app/node_modules

docs/CODE-BOUNDARIES.md

@@ -65,11 +65,10 @@ check, not a JavaScript sandbox. Common voice controls cannot depend on a
 Realtime protocol implementation. Negative fixtures cover indirect helpers,
 self-package imports, symlinks and unreachable files.
 
-Source factories have dedicated exports for ALPR, bikeshare, CCTV, earthquakes,
-FIRMS, installations, launches, radio, satellites and traffic. They preserve the
-same factory implementations without loading layer rendering. ALPR/earthquake
-record normalization and CCTV source endpoint policy have plain owners separate
-from geometry/cards. Source exports do not start acquisition at import time.
+Source-only factories use dedicated `layers/<family>/source` exports where
+available, preserving the same factory implementation without loading rendering.
+Record normalization and endpoint policies have plain owners separate from
+geometry/cards. Source exports do not start acquisition at import time.
 
 Other layer `ingestion.js` files may still coordinate Cesium resources; the
 portable contract applies to the explicitly reviewed graphs above. Their layer
@@ -630,9 +629,9 @@ explicit operations. Both exports exclude Cesium, DOM and application assembly.
 The snapshot renderer applies record changes; rendering owns a weak map of
 geometry and billboard resources used by cards, picking and trails.
 
-`gods-eye-view/sources/reference` constructs fresh earthquake and bundled cable
+`gods-eye-view/sources/reference` constructs fresh earthquake, GNSS integrity and bundled cable
 source instances independently of standalone setup. Individual sources remain
-available through `layers/earthquakes/source` and `layers/submarine-cables/source`.
+available through their `layers/<family>/source` exports, including `layers/gnss/source`.
 The latter retains the bundled dataset’s attribution and licensing requirements.
 
 ## Geocoding and feature-query providers

docs/CURRENT-STATE.md

@@ -101,6 +101,10 @@ lists at 25 rows by default. Voice offers the same queries next to its app
 actions: the session lists them, and the browser runs them through the same
 catalog, loaded on first use. See [tools and the MCP server](TOOLS.md).
 
+Catalog calls check their cancellation signal immediately before executing a
+tool. Already-cancelled queries do not start; cancellation after execution starts
+continues to follow the existing tool and caller behavior.
+
 ## Cyber HUD — September 30, 2026
 
 Display > HUD > Layout includes Cyber, also available through the HUD voice
@@ -252,8 +256,15 @@ Clouds only applies a soft brightness ramp to decoded pixels once, using
 Cesium's sRGB-to-linear conversion (`channel ** 2.2`) and smoothstep from 0.40
 to 0.70. The old 0.55 threshold is the ramp midpoint. RGB and source alpha are
 preserved in Full image mode; both modes use the chosen layer opacity. This
-is a display filter, not a cloud mask. Satellite share links retain the display
-mode; observation history remains transient and links open latest.
+is a display filter, not a cloud mask. The cloud-filter slider is a continuous
+0–100% strength: 0% is Full, 100% is the existing Clouds only key, and
+intermediate values blend their alpha. The value commits on slider release to
+avoid restaging for every pointer event. Status refreshes retain the uncommitted
+drag preview; changed model values or disabled controls supersede it.
+Satellite share links carry the filter
+strength; legacy `f`/`a` values keep their Clouds only / Full meanings. Soft and
+Vivid remain layer-opacity presets (40%/70%); history remains transient and links
+open latest.
 Global infrared fetches one capped 4 MiB, 2048×1024 mosaic per frame and decodes
 and processes it before staging. Globe hosts crop that canvas into 256 px tiles
 to maximum level 3 on a geographic 2×1 root grid bounded to the manifest extent,
@@ -298,7 +309,8 @@ release commits immediately. Latest selects the newest frame per product, and
 history labels the actual displayed frame as synced or nearest. Missing-frame
 messages use each product's eligibility gap (30 minutes, or three hours for the
 global mosaic). Wind shows forecast valid and issue times and does not follow
-history. Satellite clouds uses Clouds only / Full image configuration labels.
+history. Satellite clouds uses Clouds only / Full controls, a continuous cloud
+filter slider and Soft/Vivid opacity presets in its right-rail settings.
 
 Left weather rows retain only the toggle and one status line with a source
 tooltip. Configuration and the cyclone Storms list live in the cards, as do the
@@ -825,6 +837,30 @@ use the supplied asset resolver, including the preload path. Enrichment receives
 an abort signal and cannot update a later lifecycle after destruction. Existing
 camera, terrain floor, trail, selection and measured model-size policies remain.
 
+## Transponder emergency highlighting
+
+`src/data/aircraftEmergency.js` derives one status per poll from the Mode A
+squawk (7500 unlawful interference, 7600 radio failure, 7700 general emergency)
+and the readsb ADS-B emergency/priority field where present. Higher severity
+wins, with ADS-B taking a tie. GEV treats `minfuel` and `lifeguard` as priorities;
+`general`, `unlawful`, `nordo` and `downed` are emergency statuses.
+
+Civil and military fleet billboards, 3D models and Cockpit dots turn red for
+emergencies and repaint when the broadcast changes. Priorities retain normal
+colors; tracked map colors keep their existing selection treatment. The Cockpit
+meta line names the squawk or ADS-B status (only emergencies are red), replacing
+COURSE ALIGNED while a status is present.
+
+Analyst and tracked voice results describe broadcasts, not confirmed incidents.
+Fields include `squawk`, `emergency`, `emergencyKind`, `emergencySource` and
+`emergencyBroadcast`. `lastContactAtMs` is the last known transponder contact,
+not the arrival time of this status; missing contact times retain known contact.
+Civil fallback preserves status alongside unchanged OpenSky vectors. One poll
+omitting ADS-B status may retain the previous status when the squawk is unchanged;
+explicit clears and changed squawks take effect immediately. The next omitted
+poll expires that retention. `scripts/qa-emergency-squawk.mjs` checks billboard
+and model transitions, Cockpit HUD, clearing and tracking release.
+
 ## Browser live-source observations
 
 Flights, Military Flights and AIS Vessels obtain snapshots and optional history
@@ -1066,6 +1102,9 @@ collapse can still be undone.
 
 ## Surface keyboard lifecycle
 
+Surface Tab cycling excludes controls with a negative tabindex, native disabled
+state or inert ancestry; ordinary visible enabled controls retain their order.
+
 `ui/surfaces` owns the capture-phase keyboard listener, Tab cycling and return
 focus shared by the first-run launcher and Provider Settings. Each caller
 activates it while open and deactivates it on dismissal; destruction releases
@@ -1143,13 +1182,46 @@ The station reader addresses the proxy as `/api/gbfs/<encoded feed URL>`; the
 feed address is read from the path, and a query-string form is refused with a 400. GBFS refuses upstream redirects and enforces its 5 MiB response cap while
 streaming. The 12-second deadline includes reading the body, and rejected or
 stalled downloads are cancelled. Development and preview use the same handler.
+Every upstream request carries `Client-Identifier: gods-eye-view`, which Urban
+Sharing asks of clients of the Oslo, Bergen and Trondheim Bysykkel feeds
+(`gbfs.urbansharing.com`); other operators ignore it. Requests to Entur
+(`api.entur.io`, Kolumbus and Farte Bysykkel) also carry
+`ET-Client-Name: gods-eye-view-bikeshare`. Entur serves its feeds without a
+`.json` suffix, so the endpoint check accepts `station_information` and
+`station_status` with or without it. Hosts that front more than GBFS are kept to
+their GBFS tree: `api.entur.io` to `/mobility/v2/gbfs/` and `api.cyclocity.fr`
+(Bysykkel Lillestrøm) to `/contracts/`.
+
+## Upstream body bounds
+
+FIRMS CSV, CelesTrak TLE groups, adsb.lol military responses, TomTom flow
+tiles, OpenSky states/all and adsbdb lookups now read their bodies through the
+shared streaming readers in `src/sources/httpBody.js`, so a declared or observed body
+over the cap is refused with `RESPONSE_TOO_LARGE` and cancelled rather than
+buffered. TomTom flow tiles use `readResponseBytesCapped` alongside
+GTFS-Realtime. Each read takes the route's abort signal, so a body still
+streaming when the deadline fires is cancelled. Caps are bounds, not budgets, sized well
+above measured payloads: FIRMS 64 MiB per satellite source, CelesTrak 16 MiB
+per group, OpenSky `states/all` 8 MiB, adsb.lol `/v2/mil` 8 MiB, TomTom tiles
+8 MiB and adsbdb lookups 1 MiB. Where a route already had a deadline (FIRMS
+60 s, CelesTrak 20 s, TomTom 15 s, adsbdb 8 s, and each 10 s OpenSky
+`states/all` attempt) it already bounded the body read, because aborting a
+fetch signal also aborts its body; the capped reader takes the same signal.
+The adsb.lol military poll, which had no deadline, now waits at most 12
+seconds for headers and body together. An oversized OpenSky snapshot is not
+retried, and an OpenSky 429 starts its cooldown from the response headers and
+cancels the body unread. A rejected or timed-out body is an upstream miss and
+follows each route's existing error and cached-data paths. FIRMS map-key
+status, the OpenSky token exchange and CCTV media keep their current handling.
 
 ## Remaining local service modules
 
 Overpass query validation, geometry simplification, disk caching and upstream
 transport now have separate modules; military-installation search reuses that
 transport. Regional briefing combines separate place, news and weather sources,
-while weather effects uses only the weather source. Existing process-scoped
+while weather effects uses only the weather source.
+GDELT compact dates that do not name a real calendar instant keep the article
+with an unknown publication time. Existing process-scoped
 caches, rate limits, stale fallbacks and route ordering are preserved.
 
 Local voice has separate HUD-summary, debug-log and Realtime-token handlers,
@@ -1178,13 +1250,21 @@ a browser key. Preview is for local build verification, not a production server.
 
 ## CCTV and radio provider modules
 
+CCTV direction text resolves travel tokens first, then intercardinals, then
+bare cardinals when enabled. Only conflicting headings within the highest
+matching tier remain unknown; street quadrants and lower-tier words do not
+cancel an explicit travel heading.
+
 CCTV catalog acquisition, source normalization and frame/media delivery now live
 in separate modules. Each CCTV factory owns its catalog and health state; its
 `sourceRoot` option resolves relative source files against the application root.
 Radio Browser station normalization, restricted outbound transport and directory
-caching are separate modules. Node-only package entries expose both provider
-factories. Routes, payloads, fallback behavior and existing dev/preview hook
-registration are preserved; browser rendering is unchanged.
+caching are separate modules. The pinned transport gives a mirror's 204, 205 or
+304 reply an empty body and fails any reply outside 200–599 without throwing
+outside its promise, so an unusual mirror status cannot crash the server.
+Node-only package entries expose both provider factories. Routes, payloads,
+fallback behavior and existing dev/preview hook registration are preserved;
+browser rendering is unchanged.
 
 ## Terrain, traffic, fire and bike-share provider modules
 
@@ -1198,6 +1278,10 @@ The browser layers and their rendering remain in their existing modules.
 
 ## Terrain height cache bound
 
+The terrain proxy parser rejects finite longitudes outside [-180, 180] and
+latitudes outside [-90, 90] for every client before upstream resolution. One
+out-of-range point rejects the whole batch; inclusive WGS84 bounds remain valid.
+
 The client terrain-height resolver's in-memory cache is bounded at 20 000
 entries (`DEFAULT_MAX_CACHE_ENTRIES`, overridable per instance through
 `createTerrainHeights({ maxCacheEntries })`). Coordinate rounding makes repeated
@@ -1435,7 +1519,7 @@ accessible name remains "Don't show this again". Control behavior is unchanged.
 
 ## FIRMS source status
 
-FIRMS ingestion and adaptation require explicit finite coordinates within WGS84 ranges; genuine zero coordinates remain valid and admitted detection indices stay sequential.
+The FIRMS CSV parser rejects impossible acquisition calendar dates before the proxy filters records to the trailing 24 hours, while retaining valid UTC acquisition times.
 
 The FIRMS proxy records source success after appending its rows. If aggregation
 throws, that source reports failure without a contradictory success entry.
@@ -3104,13 +3188,14 @@ its criteria cannot be silently ignored.
 | Live AIS Vessels 🚢    | AISStream websocket                                                                                                                                                                             | `src/data/aisLiveVessels.js`                          | `/api/vessels`                                          | 60s (+800ms visibility pass)                                                      |
 | Mapped Installations ⌖ | OpenFreeMap military areas; optional configured Overpass names and Google Places search | `src/data/militaryInstallations.js` | OpenFreeMap tiles, `/api/military-installations`, `/api/google/text-search` | viewport-driven; transient errors back off, missing capability switches to tiles |
 | Earthquakes            | USGS                                                                                                                                                                                            | `src/data/earthquakes.js`                             | —                                                        | 60s                                                                               |
+| Air quality            | ECCC MSC GeoMet OGC API (AQHI, Canada only)                                                                                                                                                      | `src/layers/airQuality/`                              | —                                                        | 20 min readings, 12 h station catalog                                             |
 | Satellites             | CelesTrak                                                                                                                                                                                       | `src/data/satellites.js`                              | `/api/celestrak`                                         | 120s                                                                              |
 | Space Missions (30d)   | Launch Library 2 + CelesTrak                                                                                                                                                                    | `src/data/rocketLaunches.js`                          | `/api/launches` + `/api/celestrak/active`                | 5 min                                                                             |
 | Traffic | Selectable TomTom / OpenStreetMap / Hybrid roads; optional TomTom flow (BYOK) | `src/data/traffic.js` | browser-direct OpenFreeMap tiles; `/api/tomtom` for flow | viewport-driven; capped tile cache |
 | CCTV                   | Austin + Caltrans (CA) + TfL London + Ontario 511 + Fintraffic (FI) + DriveBC (BC) + TxDOT (TX) + Estonia (Tallinn, Tarktee) + Live Traffic NSW + Open Calgary Open Data + Statens vegvesen (NO, stills + live HLS) + NYC DOT TMC (opt-in) + Catalonia (Servei Català de Trànsit) + Street View fallback | `src/data/cctv.js`                                    | `/api/cctv`                                              | 10s (active)                                                                      |
 | Radio                  | Radio Browser (public-domain station directory)                                                                                                                                                 | `src/data/radio.js`                                   | `/api/radio/stations`, `/api/radio/click/:uuid`          | 45 min directory refresh                                                          |
 | Transit 🚌             | Operator GTFS-Realtime VehiclePositions (7 keyless regions, `src/data/transitFeeds.js`)                                                                                                         | `src/layers/transit/` via `src/app/layers/transit.js` | `/api/transit`                                           | 15s (poll + delayed playback)                                                     |
-| Bikeshare 🚲           | GBFS (Lyft + BCycle)                                                                                                                                                                            | `src/data/bikeshare.js`                               | `/api/gbfs`                                              | 60s                                                                               |
+| Bikeshare 🚲           | GBFS (Lyft + BCycle + Social Bicycles + PBSC incl. Bike Share Toronto + Urban Sharing, Entur, JCDecaux NO)                                                                                                                                        | `src/data/bikeshare.js`                               | `/api/gbfs`                                              | 60s                                                                               |
 | Directions 🧭          | OSRM on FOSSGIS servers (OpenStreetMap)                                                                                                                                                         | `src/data/directions.js`                              | `/api/route` (`steps=1`)                                 | on placement / mode change                                                        |
 | Datacenters ▣          | OSM extract (bundled)                                                                                                                                                                           | `src/data/localLayers.js`                             | —                                                        | static                                                                            |
 | Dams ▰                 | OpenInfraMap/OSM extract (bundled)                                                                                                                                                              | `src/data/localLayers.js`                             | —                                                        | static                                                                            |
@@ -3118,8 +3203,34 @@ its criteria cannot be silently ignored.
 | FIRMS Active Fires ▲   | NASA FIRMS live (VIIRS ×3 NRT + MODIS NRT, trailing 24h)                                                                                                                                        | `src/data/firmsHeatmap.js`                            | `/api/firms` (`FIRMS_MAP_KEY`)                           | 10 min (proxy TTL 30 min)                                                         |
 | Street Level 📷 | Street-level imagery; Mapillary is the first provider (vector tiles, Graph API, MapillaryJS) | `src/layers/streetLevel/` via `src/app/layers/streetLevel.js` | `/api/mapillary/status`, `/api/mapillary/tiles/coverage/{z}/{x}/{y}` (`MAPILLARY_CLIENT_TOKEN`) | camera-driven (320 ms debounce, ≤9 tiles, cached 24 h) |
 | Wind 🌬                 | NOAA GFS 10 m wind (keyless, 0.25°→1° grid; animated particles)                                                                                                                                 | `src/data/wind.js`                                    | `/api/wind`                                              | 1 h (forecast cycle)                                                              |
+| GNSS Integrity 📡 (`gnss-integrity`) | adsb.lol point snapshot, low navigation accuracy binned per 0.5° cell (GEV NIC/NACp threshold + gpsjam.org formula and bands, keyless, ODbL) | `src/layers/gnss/` via `src/app/layers/gnss.js` | `/api/gnss-integrity` | camera-driven (600 ms debounce, minimum 2.5 s between reads) + 60s poll (server cache 60 s; 30 min rolling window) |
 | Fire Perimeters 🔥 | NIFC WFIGS current interagency perimeters (keyless, paged past the 2000-record cap); InciWeb catalog + incident page origin and update time checks for verified incident-page links | `src/layers/perimeters/` via `src/app/layers/perimeters.js` | `/api/fire-perimeters` + `/api/fire-perimeters/inciweb/*` | 5 min (server caches: catalog 1 h; publication 30 min) |
 
+GNSS Integrity samples a 250 nm circle around the Earth point under the screen
+centre. Camera reads debounce for 600 ms with a monotonic 2.5 s minimum gap;
+nearby views share whole-degree cache keys, and a minute poll refreshes data.
+Counts and bands cover visited views over 30 minutes, including regions now off
+screen. Non-pickable ground primitives preserve Street Level and perimeter
+selection. The legend describes a low-accuracy score, not the raw aircraft share;
+`getStats().levels` exposes nominal, medium and high counts separately.
+
+Transient source failures keep activation enabled and show unavailable/degraded
+health with the next automatic retry. Upstream 429 deadlines are capped at one
+hour, with the longest concurrent deadline retained; 5xx, timeout and malformed
+responses impose a 15 s server cooldown. Cache hits and shared reads do not spend
+upstream admission. Cache age and cooldown use a monotonic clock; observation
+age comes from the upstream snapshot and is preserved in the row and voice stats.
+Snapshots older than 30 minutes or without a source timestamp are refused.
+Disable/destroy cancels pending requests, timers, subscriptions and primitives.
+
+The GEV classifier remains unvalidated; anomalies do not confirm interference.
+See [method, provenance and limits](../DATA_SOURCES.md#gnss-integrity), including
+MLAT-positioned GPS loss, derived-field exclusions and the NIC 0 exception.
+`scripts/qa-gnss.mjs` covers live freshness, bands, built primitives, camera/globe
+anchors, recovery, keyboard and mobile states; emergency repainting is covered
+by `scripts/qa-emergency-squawk.mjs`. Both accept `--timeout-ms` for slow boot.
+
+
 Fire Perimeters uses capped, timed server reads with stale-on-error caching and a per-client limit. Unchanged snapshots retain geometry; link checks cancel on disable or selection change, and the row legend shows reported containment.
 
 Street Level is a collapsible right-rail panel (`#street-level-panel`, layer
@@ -3133,7 +3244,7 @@ provider draws in one colour (`PROVIDER_COLORS` in
 `src/layers/streetLevel/policy.js`); 360° cones are rings and the selected
 sequence is GEV cyan. Share options: `m` (Mapillary), `r` (the other providers' switches by id,
 e.g. `google-1` for Street View), `p` (`a`/`p`/`f` panoramas), `s` (since, days). Mapillary, Google
-Street View and KartaView are registered. Without
+Street View, KartaView and Panoramax are registered. Without
 `MAPILLARY_CLIENT_TOKEN` the panel reads KEY REQUIRED and the controls are
 disabled. With it, coverage draws as z0–5 overview points from orbit and z11–14
 sequence lines below 60 km; the proxy strips the unused `image` layer from z14
@@ -3329,14 +3440,88 @@ photo that was opening is drawn on the new canvas instead. FIT / FILL hide
 for panoramas (`supportsRenderModes`). The
 caption has no place name (KartaView's is where the drive began) and links to
 the full-size photo through the image proxy, since kartaview.org's photo
-pages fail for signed-out visitors.
+pages fail for signed-out visitors. The viewer itself is `photoViewer.js`,
+shared with Panoramax: each provider hands it a `PhotoSources` table (first
+and sharper flat and panorama URLs, and the caption fields).
+
+Panoramax (`providers/panoramax/`) is keyless and browser-side: the
+meta-catalogue `api.panoramax.xyz` (CORS open) federates every instance, and
+each picture is served by the instance holding it (OpenStreetMap France,
+IGN, MapComplete…; IGN's redirect to its OVH object storage). Its chip
+(orange, `#ff6f00`, Panoramax's own) starts off. Coverage comes from its
+vector tiles (`/api/map/{z}/{x}/{y}.mvt`, an hour's HTTP cache): sequence
+lines from z14 below 1.8 km above ground, z13 to 5 km, z12 to 12 km, z11
+to 30 km and z10 to 60 km, as Mapillary's (a dense z10 tile over Paris is
+~2.1 MB and 8,600 sequences, 750,000 points). `decode.js` simplifies each
+line (Douglas–Peucker to the segment, 4 units of a 4,096 tile: about a
+pixel where it is drawn, 6–10% of a GPS track's points), and the tiles in
+view draw their longest lines within 90,000 points (`maxPoints`,
+`keepOrder`), shared out once loading settles so a sparse tile keeps all
+it has and a dense one (a city centre) takes the rest; the selected
+sequence is always drawn. Every point becomes ~8 ground-line vertices:
+unsimplified, the lines hung the tab. Decoded tiles are kept while the
+provider is on (16, ten minutes, `tileCache.js`, shared with KartaView),
+and above
+60 km the `grid` layer's 0.1°
+density cells, binned to at most 96×96 points a tile (a z0 tile holds
+~70,000 cells) and not counted as sequences: the panel says to zoom in.
+A tile decodes in slices of about 8 ms, the page getting a turn between
+them (a 2 MB z10 tile is ~200 ms of work). A busy API (429/503) holds the
+tiles back for its Retry-After, which the browser cannot read here (the API
+exposes no headers), so the wait doubles from 5 s to 5 minutes until it
+answers; an answer may take as long as it keeps arriving (silent for 15 s
+is given up), so a slow link still gets its megabyte tiles. Both
+filters apply: lines carry their day and camera type, and a cell stays while
+it holds pictures of the kind asked for (cells are undated). A click on a
+line asks the core (`actions.openNearest`) for that sequence's picture
+nearest the click, within the camera height / 100 (50–400 m: from high up
+a click lands well off a line), without framing, then any sequence's within
+50 m. Each lookup is two searches side by side, ranked by distance in the
+browser: `place_position` (nearest first, but even at
+`place_fov_tolerance=180` it leaves out pictures looking away from the
+point) and a bounding box (those too, roughly nearest first, so 20 are
+asked for: ~60 kB, against ~600 kB for 100); the filters go to both (`filter=field_of_view=360`, `datetime=<since>/..`). A line is dated
+by its sequence's first day, so a sequence still growing can hide under
+SINCE; a line with no camera type or day stays drawn. Lines keep the
+decoded longest-first order under the per-tile cap (`keepOrder`). Once the picture is on screen
+its sequence is highlighted and drawn as cones from the z15 tiles around it
+(their `pictures` layer, ~110 bytes a picture, against ~7.5 kB for a STAC
+item), plus the neighbours within 150 m of an edge, on their own connection
+(coverage tiles take three, searches two); each tile's list for the sequence
+is kept. The open picture's own tile draws at once and the neighbours join
+as they arrive; one that fails is not counted, so a picture opening in it
+re-centres the cones there. The cones re-centre when a picture opens outside the tiles
+they were drawn from, judged from the moment their load starts, and centre
+only on a picture actually shown (never on a lookup that came back after
+the user moved on); a lookup nobody waits for any more is stopped. ‹ › follow the picture's own `prev`/`next`
+links, so stepping costs one small search per picture. The viewer shows the
+2,048 px SD derivative (equirectangular for a 360° picture, decoded at
+2,048 × 1,024) and swaps in the HD original only when the viewer is wider
+than SD (flat) or, for a panorama, expanded; once, shrunk while it decodes.
+When SD fails a flat picture falls back to the thumbnail, and to the
+original only in the expanded viewer. Every download of a photo, first or
+sharper, stops when another opens or the viewer closes. Originals wider than
+8,192 px are never fetched; a file's header (JPEG, PNG, WebP, GIF) is read
+before it decodes, and one declaring more than 64 MP or 16,384 px a side
+is refused undecoded, as is an `<img>` that decodes larger and any file
+over 48 MB. The caption names every
+producer (an uploading app and its photographer; never an account named by
+an email address), or else the instance holding the picture ("via
+panoramax.ign.fr"), and the picture's licence (CC BY-SA 4.0, Licence
+Ouverte 2.0…; StreetPose `license`), and links to the picture in the
+Panoramax viewer. Esc anywhere in the docked viewer clears the selected
+sequence before the panel can take it (KartaView too). After a GPU reset
+the viewer draws the same picture again itself (`onReopen`), leaving the
+core's lookups alone. The MCP globe panel allows the meta-catalogue and the
+three biggest instances; a picture on another instance shows only in the
+app.
 
 Street Level has two browser gates. `npm run qa:street-level -- --url <server>`
 runs against real Mapillary and needs `MAPILLARY_CLIENT_TOKEN`. `npm run
 qa:street-level:fixtures -- --url <server>` answers every Mapillary request
 from fixtures (`providers/mapillary/coverageFixture.mjs`,
-`scripts/fixtures/street-level/`), so it needs no network and covers the whole
-photo flow. CI runs the fixture gate and `qa:panel-resize`
+`scripts/fixtures/street-level/`), and KartaView's and Panoramax's too, so it
+needs no network and covers the whole photo flow. CI runs the fixture gate and `qa:panel-resize`
 against a production build served by `vite preview` with a dummy token.
 
 Directions is a keyless front end to the routing the voice agent already
@@ -4061,6 +4246,10 @@ for, resolved lazily after env loading. It replaces the empty default list;
 there is no built-in fallback. Local/private instances are allowed. The stable
 `gods-eye-view/…` User-Agent is unchanged. URLs never appear in response headers
 or upstream errors, including old cached endpoint metadata.
+Disk cache entries for both routes carry a SHA-256 tag of the configured
+instance set (order does not matter) and are served only while it matches, so
+repointing `OVERPASS_UPSTREAMS` refetches instead of serving another instance's
+answers; untagged entries stop serving once an instance is configured.
 
 The shared transport guards `/api/overpass` and `/api/military-installations`.
 With no configured upstream, each route serves existing cache data (including
@@ -4078,7 +4267,8 @@ when its own signal aborts.
 Configured endpoints have per-instance cooldowns for 406/429, honoring
 Retry-After; absent delays back off from 30 seconds to five minutes. Empty
 `elements` is a valid answer. Existing byte, query, concurrency and cache caps
-remain. Consumer capability misses never schedule automatic retries.
+remain. Malformed capability-probe responses remain unknown and are retried after the existing 30-second backoff; valid configured decisions remain memoized.
+Consumer capability misses never schedule automatic retries.
 
 Operator-configured Overpass area and focus-footprint queries use body-level
 `out geom` (with `center` for focus), preserving relation member outlines.
@@ -4376,7 +4566,24 @@ Providers normalize coordinates, canonical name, label, place types and optional
 bounds. Camera framing, nearby landmark recovery and footprint selection remain
 in their consumers, including the Capitol identity/containment safeguards.
 Radio keeps localized country names in labels rather than station filters.
-Reverse geocoding and nearby/text-search endpoints retain their existing behavior.
+Nearby/text-search endpoints retain their existing behavior.
+
+**Google geocoding is a server route, not a browser call** (#363). Forward and
+reverse lookups go to `/api/google/geocode` and `/api/google/reverse-geocode`,
+which carry `GOOGLE_MAPS_SERVER_API_KEY` (falling back to `GOOGLE_MAPS_API_KEY`)
+and share the Places routes' opt-in `GEV_RATELIMIT_GOOGLE_PER_MIN` throttle.
+Google's Geocoding **web service** refuses referrer-restricted keys, so the
+previous browser call forced the bundled browser key — visible in devtools by
+design — to be left unrestricted; it now needs only the Map Tiles API and the
+Maps JavaScript API (Street View). Both routes answer in Google's own
+`status`/`results` shape rather than the Places routes' `places: []` contract,
+because the browser adapters normalize that shape directly. The browser key still gates the provider client-side, so a keyless
+session spends no request to learn it has no Google: the route's own keyless
+answer reads as an unanswered provider, which would stop the chain caching the
+negative Photon or Nominatim then produces. Its query is capped at 200
+characters, its reverse coordinates are validated against WGS84 bounds before
+the request is paid for, and a malformed viewport bias is dropped rather than
+refused, since a bias only ranks results.
 
 Only valid answers and definitive misses enter bounded caches; malformed replies,
 HTTP refusals and outages remain retryable. Searches share a 12-second total
@@ -4459,8 +4666,22 @@ are omitted rather than framing the wrong part of the globe.
 - Pure half: `src/annotations/drawMode.js` (session, minimum vertices, double-click de-dup at 0.5 m, vertex ceiling, degenerate-geometry refusal, ring closing, dateline-safe length/area/centroid, hint text). Regression surface: `src/annotations/drawMode.test.mjs` and `src/data/inputOwnership.test.mjs` (pure), `src/annotations/drawToolBehaviour.test.mjs` (the tool driven against DOM and viewer doubles — leases, borrowed input actions, teardown, the Enter key, preview heights), `src/annotations/drawTool.test.mjs` (structural: where files live, which ids the markup carries, what the docs may claim), and the rendered harness `scripts/qa-draw-tool.mjs`.
 - The annotation tree is a declared ownership group: `./annotations` → `src/annotations/index.js` in `package.json`, with its module graph listed in `scripts/package-boundaries.json`, so an annotation module reaching outside that graph is a gate failure rather than a surprise in a layer's bundle. `drawMode.js`, `drawTool.js` and their tests are in `scripts/format-scope.json`.
 
+### Import Your Own Files (October 2026)
+
+- DISPLAY ▸ **Import** reads GeoJSON (`.geojson`/`.json`), KML, KMZ and GPX from the picker or a file drop anywhere in the app. Each file gets show/hide, Fly-to and Remove controls. GeoJSON and GPX use the row's color; KML/KMZ retain their styles and show a hatched swatch. The file bytes remain on the device for the page session. Rendered overlays can appear in map screenshots sent through voice or other existing screenshot tools.
+- **Ground and height.** GeoJSON XYZ coordinates become ground footprints. KML ground lines/rings are tessellated; static recorded tracks preserve their original vertices, segment gaps and explicit altitude modes. KML with absolute/relative altitude keeps that meaning. Ground pins resolve in batches of 256 against loaded terrain and, in the nearby camera footprint on photoreal maps, `clampToHeightMostDetailed`, then draw in one owned native BillboardCollection per file, with static positions and no per-frame point Entity visualizer or clamping callbacks. Point metadata remains in `dataSource.importedEntities` for framing/style inspection; non-point geometry stays in the normal source collection. Pin collections mount only after source admission, follow file show/hide, and are destroyed on removal. Settled camera/map-source changes and completed terrain loads refresh visible files through the same serial queue; distant points retain their latest available height. No detailed worldwide terrain sweep is started. Nearby mesh sampling can add requests/time; configured photoreal providers require separate validation. The depth test is disabled for ground pins, matching Draw's marker visibility policy.
+- **Navigation.** Row Fly-to uses `runImmediateNavigation('file', …)`; Cockpit can refuse it and existing follow/track ownership is released first. Automatic Fly-to is stamped when a batch is submitted and reasserted before flying. Pointer/wheel gestures and newer navigation supersede it, including time spent in the queue. Framing uses every finite visible point/path/polygon-hole/wall vertex plus rotated overlay bounds, with viewport-aware range and a nadir view. The target uses available terrain/cached ground height and the ground guard on arrival. Empty footprints never fall back to deferred `viewer.flyTo`.
+- **Clock.** Imports expose no source clock and no entity availability. KML times/view metadata are removed before loading; recorded tracks become static lines. GPX segments remain separate and GPX times are ignored. The shared clock stays unchanged.
+- **Input handling.** Coordinates and GeoJSON geometry types are checked before Cesium allocation. Only short plain names reach GeoJSON property bags; file IDs, custom CRS and styling properties are removed. KML feature/geometry IDs are removed while Style/StyleMap references remain. Local style references are trimmed, incomplete style pairs removed, hidden-folder flags normalized to the import's show control, and unsupported prototype-named elements removed. UTF-16 BOMs and common KML namespace export defects are handled. Empty drawable content is refused. A loader failure or timeout does not hold the next file indefinitely; teardown aborts pending waits.
+- **References and images.** File-authored remote links/icons/styles, network links, models and screen/photo overlays are removed. Packed KMZ and embedded PNG/JPEG/GIF/WebP/BMP images remain local; decoded dimensions are checked before image decoding against a total 16-megapixel and 8,192-pixel-side budget per file. Blocked IconStyle images fall back to local pins; authored empty icons remain empty. Colored overlays without an Icon survive; overlays with a removed external image are dropped. Metadata, native labels and descriptions are removed, and generated pins share one lossless image URL per canvas.
+- **Bounds.** File size ≤50 MiB; inflated KMZ ≤120 MiB; ≤20,000 entities (including multipart children and Folder containers); ≤250,000 positions; ≤2,000 normalized style definitions and distinct image links; ≤12 files per session. Exact repeated styles share definitions without changing inheritance or inline overrides. Files of 20–30 MB fit the byte budget, subject to geometry/image limits. Refusals name a reason and batches continue; with multiple failures the hint shows the first reason.
+- **Lifecycle and keyboard.** `createApplicationTools` wires `initGeoFileImport` with viewer, navigation, ground services and map-source subscription. Destroy aborts pending work, unsubscribes, removes data sources, revokes blob URLs, removes document/canvas listeners and releases `window.__gevGeoImport`. List rebuilds retain keyboard focus; removing a row hands focus to the next row, else the previous row, else Import.
+- **Validation.** `node scripts/qa-geo-import.mjs` covers all four formats and real painted show/hide. Run `node scripts/qa-geo-import-regressions.mjs` against both dev and preview for XYZ/track heights, failure recovery, namespace/BOM support, portrait framing and panel drops. `node scripts/qa-geo-import-large.mjs [--file /absolute/path/sample.kml] [--expect-local-pins]` checks a 27.6 MB repeated-style file, native style/image equivalence, large-file painted output and frame times. It records the WebGL renderer; software-rendered runs do not establish GPU performance. Unit tests live beside the data/controller/framing modules.
+
 ### Recent Imagery (September 2026)
 
+CMR pagination counts raw rows when checking page completion and the record budget. A catalog is truncated when upstream hits exceed the rows examined or the record cap drops valid granules from the last page; discarded malformed rows do not imply unseen imagery.
+
 Programmatic boxes passed to the exported `setBox` and `searchHls` operations
 reject missing, blank or boolean edges instead of interpreting them as zero
 coordinates. Valid finite numeric edges remain accepted; the app’s drag tool,
@@ -4480,7 +4701,7 @@ pins and share links already supply complete boxes.
 
 - **The TRACKED contact's 2D↔3D handoff is DEFAULT behaviour (2026-08-19), driven by camera distance alone.** It does NOT consult the DISPLAY-rail `3D` toggle, which continues to own the FLEET (the un-instanced draw-call budget stays the operator's decision). Policy lives in `src/data/trackedModelRegime.js` and is shared by both layers: enter below `TRACKED_MODEL_ENTER_ALT_M` = 150,000 m and hand back to the billboard only above `TRACKED_MODEL_EXIT_ALT_M` = 172,500 m. **The swap distance was set by playtesting on 2026-08-20:** a first pass at 1,000,000 m switched too early; 2D reads correctly at ~600 km and the handoff belongs at ~150 km. **Consequence, recorded on purpose:** the tracked contact now enters 3D NEARER than the FLEET does (`MODEL_ALT_CEIL_M` = 800,000 m, unchanged), so with the DISPLAY-rail `3D` toggle on, 150–800 km draws surrounding contacts as models while the selected one is still a glyph. Nothing double-draws (the fleet pass skips the tracked icao) and aligning the two is a fleet-side decision, deliberately out of scope. **The two thresholds are asymmetric on purpose:** a single threshold makes a tracked orbit sitting ON the boundary strobe billboard↔model as the camera's altitude wobbles across it. Do not collapse them. The latch is scoped per selection, so a new target re-evaluates against the ENTER ceiling rather than inheriting the previous target's exit band. Exactly ONE model is involved; it loads on demand when the regime opens, is HIDDEN (not released) on regime exit so re-entry has no load gap, and is released by the existing teardown on deselect/re-track/destroy. Cockpit and TR-3B suppression are unchanged. **Two invariants around it:** (a) the hysteresis latch AND the load-failure latch are per-selection state cleared by `_resetTrackedSelectionState()` in the tracking lifecycle (deselect / re-track / cross-layer / init / destroy) — the predicate's icao-change guard is defence only, since it needs a drawn frame while nothing is selected and the render governor's idle mode does not promise one; (b) on-demand loading is bounded at 3 attempts per selection with a 1.5 s backoff and one console warning naming the asset — the driver runs every `scene.preUpdate`, so an unbounded catch means a missing GLB spins load→reject at frame rate. The billboard stays the visual throughout a failed load.
 - **Grounded 3D handoff is terrain-validity gated (2026-08-23).** A ready civilian or military glTF does not own the visual until `groundSnap` (`src/data/groundSnap.js`) can answer with a MEASURED photoreal-surface height. On success the layer writes `height + the model's measured belly offset` before revealing the model. Cache movement is measured on the WGS84 surface, not across altitude, so a stationary contact keeps its snap through poll-time vertical-datum changes. Model existence or GPU readiness alone never suppresses the billboard floor, and ordinary zoom/style/deselect transitions preserve a valid snap cache. **Two states, and the difference is the whole design.** COLD — nothing has ever resolved for this icao (tiles still streaming on first sight, sample failure, backoff after a first miss): there is no evidence of where the ground is, `heightFor` returns null, the model stays hidden and the depth-test-free 2D billboard remains opaque and floored. WARM — a snap resolved and then a >`MOVE_INVALIDATE_M` (50 m) taxi move stopped it answering directly: the measurement is DEMOTED to a bounded last-known rather than deleted, and it keeps answering while the resample is outstanding, so a taxiing aircraft does not pop 3D→2D→3D across a 2–30 s retry backoff. The bound is `HELD_SNAP_MAX_DRIFT_M` = 250 m from the spot the value was measured at, past which the hold is dropped rather than stretched and the contact is COLD again. It is spatial with no timer beside it (ground under a contact that has not moved does not change; what invalidates the value is the contact MOVING) and deliberately a quarter of the billboard chain's `HELD_FLOOR_MAX_DRIFT_KM` — that hold only ever RAISES a sprite, while a held snap IS the model's placement, so its error shows in both directions. A fresh sample releases the hold, and so does a ground flip (which already calls `forget`). **A loading model is HIDDEN, never zero-scaled:** admission sets `show = false` (Cesium's default is `true`, and an unplaced primitive would claim the visual at the identity matrix), and ownership is `ready && show` — Cesium 1.138's `Model.update` has no `show` guard, so hiding a primitive costs its load nothing.
-- Commercial and military aircraft use the same high-level FLEET model regime: 2D billboards when zoomed out, optional glTF models when closer, controlled by the DISPLAY rail `3D` toggle and `Proximity` / `All` modes. Since 2026-08-16 (Hangar fleet) models are PER-CLASS: real CC-BY GLBs for light/bizjet/turboprop/widebody/helicopter/uav (`CLASS_MODEL_REAL` in `src/data/aircraftClass.js` — meters-baked, scale 1, per-model belly/radius; provenance in `public/models/README.md`), the shared `airplane.glb` for the remaining civilian classes, and the military layer maps weight classes (real GLBs / 747 heavies / `jet.glb` fastjets, per-model heading offsets, always flat amber). Textured civilians carry a HEAVY tint, not a light one: `MODEL_COLOR_BLEND_AMOUNT` is `0.94` in BOTH layers under Cesium's `ColorBlendMode.MIX`, so the class colour supplies 94% of the surface and the asset's own texture ~6%. The visual direction is clean light silhouettes with only a weak diffuse contribution from the approved textures, so liveries deliberately do NOT read. IR boost raises the blend to a full `1.0`. Under NVG/FLIR (map preset or Cockpit vision) models render unlit flat-white at full alpha and scene fog is disabled (fog otherwise blacks out distant models with the globe hidden); state restores on exit.
+- Commercial and military aircraft use the same high-level FLEET model regime: 2D billboards when zoomed out, optional glTF models when closer, controlled by the DISPLAY rail `3D` toggle and `Proximity` / `All` modes. Since 2026-08-16 (Hangar fleet) models are PER-CLASS: real CC-BY GLBs for light/bizjet/turboprop/widebody/helicopter/uav (`CLASS_MODEL_REAL` in `src/data/aircraftClass.js` — meters-baked, scale 1, per-model belly/radius; provenance in `public/models/README.md`), the shared `airplane.glb` for the remaining civilian classes, and the military layer maps weight classes (real GLBs / 747 heavies / `jet.glb` fastjets, per-model heading offsets, flat amber or emergency red). Textured civilians carry a HEAVY tint, not a light one: `MODEL_COLOR_BLEND_AMOUNT` is `0.94` in BOTH layers under Cesium's `ColorBlendMode.MIX`, so the class colour supplies 94% of the surface and the asset's own texture ~6%. The visual direction is clean light silhouettes with only a weak diffuse contribution from the approved textures, so liveries deliberately do NOT read. IR boost raises the blend to a full `1.0`. Under NVG/FLIR (map preset or Cockpit vision) models render unlit flat-white at full alpha and scene fog is disabled (fog otherwise blacks out distant models with the globe hidden); state restores on exit.
 - The DISPLAY-rail `3D` toggle is the user-facing activation path for both aircraft layers. Their small approved GLBs build their render resources without Cesium's frame-spread job queue, preventing continuous Photorealistic 3D Tiles streaming from starving model readiness; model caps, tracking, camera, and fallback billboards are unchanged.
 - **The `3D` toggle DEFAULTS ON in `proximity` on a first run.** Proximity is itself the budget — models appear only below `MODEL_ALT_CEIL_M` and only for the nearest `MODEL_MAX` in view — so the default costs nothing at globe scale, and `all` remains a deliberate opt-in. A fresh boot runs NO layer-state restoration (`LayerStateCoordinator.start()` returns early with neither a share payload nor stored state), so four independent initializers decide what a first-run operator sees and must agree: `booleanOption('models3d', 'e', true)` in `src/data/layerState.js`, `_models3dEnabled = true` in BOTH flight layers, `this._models3dEnabled = true` in `src/ui.js`, and the `active` / `visible` classes on `#models3d-toggle` / `#models3d-mode-row` in `index.html`. All four are pinned together in `src/data/layerState.test.mjs`. Explicit state still wins: because the codec omits default-valued options, `models3d: false` is now what travels in a link (`lo=…f.e.0`) and restores OFF at both aircraft layers. **Consequence for returning users:** a stored `gev:layer-state:v2` blob is a FULL options snapshot, so a session that wrote one before this change carries `models3d:false` and keeps 3D off until the operator flips it (or clears the key) — the durable snapshot is treated as the recipient's own state, by design.
 - **Consequence of the flip on the recorded tracked/fleet inversion:** the 150–800 km band where surrounding contacts draw as models while the SELECTED one is still a glyph is now what an operator sees WITHOUT arming anything. The inversion itself is unchanged and still deliberate (see `src/data/trackedModelRegime.js`); only its reachability changed.

index.html

@@ -13,7 +13,7 @@
        with the sources: src/materialSymbolsSubset.test.mjs fails when a source
        names a glyph this list is missing, because a missing glyph does not draw
        a box — the ligature never forms and the element renders the literal word. -->
-  <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&icon_names=adjust,arrow_drop_down,arrow_forward,arrow_left,arrow_right,bolt,chevron_left,chevron_right,close,close_fullscreen,dark_mode,draw,east,flare,flight,layers_clear,light_mode,local_fire_department,my_location,navigation,normal,on,open_in_full,public,radar,radio,right_panel_close,right_panel_open,rocket_launch,skip_next,skip_previous,view_in_ar" rel="stylesheet" />
+  <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&icon_names=adjust,arrow_drop_down,arrow_forward,arrow_left,arrow_right,bolt,chevron_left,chevron_right,close,close_fullscreen,dark_mode,draw,east,flare,flight,layers_clear,light_mode,local_fire_department,my_location,navigation,normal,on,open_in_full,public,radar,radio,right_panel_close,right_panel_open,rocket_launch,skip_next,skip_previous,upload_file,view_in_ar,visibility,visibility_off" rel="stylesheet" />
 </head>
 <body>
   <!-- gev:template scene-chrome -->

package.json

@@ -165,6 +165,7 @@
     "./layers/recent-imagery": "./src/layers/recentImagery/index.js",
     "./layers/recent-imagery/source": "./src/layers/recentImagery/source.js",
     "./layers/perimeters": "./src/layers/perimeters/index.js",
+    "./layers/gnss": "./src/layers/gnss/index.js",
     "./sources/firms-csv": "./src/data/firmsCsv.js",
     "./layers/firms": "./src/layers/firms/index.js",
     "./layers/satellites": "./src/layers/satellites/index.js",
@@ -176,6 +177,7 @@
     "./layers/directions": "./src/layers/directions/index.js",
     "./layers/directions/source": "./src/layers/directions/source.js",
     "./layers/cctv": "./src/layers/cctv/index.js",
+    "./layers/air-quality": "./src/layers/airQuality/index.js",
     "./layers/alpr": "./src/layers/alpr/index.js",
     "./layers/radio": "./src/layers/radio/index.js",
     "./layers/submarine-cables": "./src/layers/submarineCables/index.js",
@@ -236,8 +238,10 @@
     "./layers/alpr/source": "./src/layers/alpr/source.js",
     "./layers/bikeshare/source": "./src/layers/bikeshare/source.js",
     "./layers/cctv/source": "./src/layers/cctv/source.js",
+    "./layers/air-quality/source": "./src/layers/airQuality/source.js",
     "./layers/earthquakes/source": "./src/layers/earthquakes/source.js",
     "./layers/perimeters/source": "./src/layers/perimeters/source.js",
+    "./layers/gnss/source": "./src/layers/gnss/source.js",
     "./layers/firms/source": "./src/layers/firms/source.js",
     "./layers/installations/source": "./src/layers/installations/source.js",
     "./layers/launches/source": "./src/layers/launches/source.js",

scripts/docker-start.mjs

@@ -0,0 +1,154 @@
+#!/usr/bin/env node
+/**
+ * Docker launcher — the container's entry point (see Dockerfile).
+ *
+ * `compose.yaml` publishes the port on the host's loopback, but Docker still
+ * delivers the host's own browser to the container FROM the container
+ * network's gateway address, never from 127.0.0.1. Provider Settings admits
+ * loopback only, so without this the POWER UP panel refuses the very machine
+ * running the container. This launcher reads the gateway out of the kernel
+ * routing table and declares exactly that one address trusted, then starts
+ * Vite the way scripts/pinokio-start.mjs does.
+ */
+import { accessSync, constants, readFileSync, realpathSync, statSync } from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { isDirectInvocation } from './pinokio-install.mjs';
+import { loadViteFromCanonicalRoot } from './pinokio-start.mjs';
+
+const MODULE_PATH = fileURLToPath(import.meta.url);
+const ROOT = realpathSync(path.resolve(path.dirname(MODULE_PATH), '..'));
+const ROUTE_TABLE = '/proc/net/route';
+
+/**
+ * Extract the IPv4 default gateway from Linux `/proc/net/route` text. The
+ * addresses there are little-endian hex and only the default route (a
+ * destination of 00000000 on an interface flagged up) names a gateway.
+ * Returns null when there is none — the `--network none` case, which must
+ * never fabricate an address.
+ * @param {string} text Raw routing-table contents.
+ * @returns {string|null} Dotted-quad gateway, or null.
+ */
+export function defaultGatewayFromRouteTable(text) {
+  const lines = String(text || '').split(/\r?\n/).slice(1);
+  for (const line of lines) {
+    const fields = line.trim().split(/\s+/);
+    if (fields.length < 4) continue;
+    const [, destination, gateway, flags] = fields;
+    if (destination !== '00000000' || !/^[0-9a-f]{8}$/i.test(gateway)) continue;
+    if ((Number.parseInt(flags, 16) & 0x1) === 0) continue; // RTF_UP
+    const octets = [6, 4, 2, 0].map((offset) =>
+      Number.parseInt(gateway.slice(offset, offset + 2), 16),
+    );
+    if (octets.every((octet) => octet === 0)) continue;
+    return octets.join('.');
+  }
+  return null;
+}
+
+/**
+ * Decide this launch's trusted-peer list. An operator value always wins, so a
+ * compose override stays authoritative; otherwise the gateway alone is
+ * trusted. No gateway trusts nothing and Provider Settings stays loopback-only,
+ * exactly as under `npm run dev`.
+ * @param {{env?: NodeJS.ProcessEnv, routeTable?: string}} input
+ * @returns {string} Value for GEV_KEY_SETUP_TRUSTED_PEERS ('' trusts nothing).
+ */
+export function resolveTrustedPeers({ env = process.env, routeTable = '' } = {}) {
+  const explicit = String(env.GEV_KEY_SETUP_TRUSTED_PEERS ?? '').trim();
+  if (explicit) return explicit;
+  return defaultGatewayFromRouteTable(routeTable) ?? '';
+}
+
+/**
+ * A checkout the container cannot write fails quietly: Provider Settings
+ * answers 500 and `.gev-cache` is never created, with nothing in the log. The
+ * usual cause is a clone made as root on a NAS or Proxmox host while the
+ * container runs as 1000:1000. Say so at start, naming both sets of ids.
+ * @param {{root: string, writable: boolean, owner: {uid: number, gid: number}, runAs: {uid: number, gid: number}}} input
+ * @returns {string|null} A warning, or null when the checkout is writable.
+ */
+export function unwritableRootWarning({ root, writable, owner, runAs }) {
+  if (writable) return null;
+  return (
+    `[Docker] ${root} is owned by ${owner.uid}:${owner.gid} but the container runs as ` +
+    `${runAs.uid}:${runAs.gid}, so saving keys and caching will fail. Either give ` +
+    `the checkout to that user (chown -R ${runAs.uid}:${runAs.gid} on the host) or ` +
+    `run as its owner (env UID=${owner.uid} GID=${owner.gid} docker compose up)`
+  );
+}
+
+function readRouteTable() {
+  try {
+    return readFileSync(ROUTE_TABLE, 'utf8');
+  } catch {
+    return '';
+  }
+}
+
+async function start() {
+  let writable = true;
+  try {
+    accessSync(ROOT, constants.W_OK);
+  } catch {
+    writable = false;
+  }
+  if (!writable) {
+    const { uid, gid } = statSync(ROOT);
+    console.warn(
+      unwritableRootWarning({
+        root: ROOT,
+        writable,
+        owner: { uid, gid },
+        runAs: { uid: process.getuid?.() ?? -1, gid: process.getgid?.() ?? -1 },
+      }),
+    );
+  }
+
+  const fromOperator = Boolean(
+    String(process.env.GEV_KEY_SETUP_TRUSTED_PEERS ?? '').trim(),
+  );
+  const trustedPeers = resolveTrustedPeers({ routeTable: readRouteTable() });
+  if (trustedPeers) {
+    // Set before Vite is imported: the dev server snapshots process.env during
+    // configuration, and the admission gate reads it per request.
+    process.env.GEV_KEY_SETUP_TRUSTED_PEERS = trustedPeers;
+    console.log(
+      fromOperator
+        ? `[Docker] Provider Settings trusted peers: ${trustedPeers} (GEV_KEY_SETUP_TRUSTED_PEERS).`
+        : `[Docker] Provider Settings trusts the container gateway (${trustedPeers}).`,
+    );
+  } else {
+    console.log('[Docker] No default gateway; Provider Settings stays loopback-only.');
+  }
+
+  const port = Number.parseInt(process.env.PORT, 10) || 4173;
+  const { createServer } = await loadViteFromCanonicalRoot(ROOT);
+  const server = await createServer({
+    root: ROOT,
+    server: {
+      // The container's own namespace. compose publishes this to the host's
+      // 127.0.0.1 only; widening that mapping is the LAN opt-in.
+      host: '0.0.0.0',
+      port,
+      strictPort: true,
+    },
+  });
+  await server.listen();
+  server.printUrls();
+  console.log(`[Docker] Ready at http://localhost:${port}/`);
+
+  for (const signal of ['SIGINT', 'SIGTERM']) {
+    process.once(signal, async () => {
+      await server.close();
+      process.exit(0);
+    });
+  }
+}
+
+if (isDirectInvocation(process.argv[1], MODULE_PATH)) {
+  start().catch((error) => {
+    console.error(`[Docker] Start refused: ${error.message}`);
+    process.exitCode = 1;
+  });
+}

scripts/fixtures/street-level/panoramax.mjs

@@ -0,0 +1,283 @@
+import { tileBounds } from '../../../src/layers/streetLevel/tileMath.js';
+import { encodePanoramaxTile } from '../../../src/testSupport/panoramaxFixtures.mjs';
+import { metresApart, photoJpeg } from './mapillaryGraph.mjs';
+
+/**
+ * Panoramax's meta-catalogue and one instance's pictures answered from
+ * fixtures, so the gate's Panoramax steps need no network. Two sequences
+ * drive east along the same Paris street (PNX_LINE), their pictures
+ * interleaved, so a click on one line must open that line's picture, not
+ * the other's that is as near. Every seventh picture of the first is 360°.
+ * The meta-catalogue's pictures live on panoramax.openstreetmap.fr; the
+ * first sequence is CC BY-SA 4.0 by "Fixture Mapper", the second Licence
+ * Ouverte by an account named by an email address (never shown).
+ */
+
+export const PNX_SEQUENCES = Object.freeze([
+  'a1a1a1a1-0000-4000-8000-000000000001',
+  'b2b2b2b2-0000-4000-8000-000000000002',
+]);
+export const PNX_LINE = Object.freeze({
+  lat: 48.8874,
+  west: 2.3445,
+  east: 2.3545,
+});
+export const PNX_PARK = Object.freeze({
+  lon: 2.3495,
+  lat: 48.8874,
+  height: 700,
+  pitch: -1.4,
+});
+export const PNX_CREATOR = 'Fixture Mapper';
+const PNX_SPACING_M = 10;
+const METRES_PER_DEG_LON = 111_320 * Math.cos((PNX_LINE.lat * Math.PI) / 180);
+const API = 'https://api.panoramax.xyz/api';
+const HOST = 'https://panoramax.openstreetmap.fr';
+
+const CORS = Object.freeze({ 'Access-Control-Allow-Origin': '*' });
+
+/** Calls answered since the last reset, by kind. */
+let asked = { search: 0, hd: 0 };
+
+export function resetPanoramaxFixture() {
+  asked = { search: 0, hd: 0 };
+}
+
+/** How many HD originals were downloaded since the last reset. */
+export function panoramaxHdDownloads() {
+  return asked.hd;
+}
+
+/**
+ * Both sequences' pictures, west to east. The second's sit 5 m along from
+ * the first's, on the same street.
+ */
+export function panoramaxPictures() {
+  const step = PNX_SPACING_M / METRES_PER_DEG_LON;
+  const count = Math.floor((PNX_LINE.east - PNX_LINE.west) / step);
+  return PNX_SEQUENCES.flatMap((sequenceId, s) =>
+    Array.from({ length: count }, (_, i) => ({
+      id: `${sequenceId.slice(0, 8)}-${String(i).padStart(4, '0')}`,
+      sequenceId,
+      index: i,
+      count,
+      lon: Number((PNX_LINE.west + (i + s / 2) * step).toFixed(7)),
+      lat: PNX_LINE.lat,
+      isPano: s === 0 && i % 7 === 3,
+      datetime:
+        s === 0 ? '2025-06-01T10:00:00+00:00' : '2023-03-01T09:00:00+00:00',
+    })),
+  );
+}
+
+function item(picture, pictures) {
+  const sibling = (delta) =>
+    pictures.find(
+      (p) =>
+        p.sequenceId === picture.sequenceId &&
+        p.index === picture.index + delta,
+    );
+  const link = (rel, other) =>
+    other
+      ? [
+          {
+            rel,
+            href: `${API}/collections/${other.sequenceId}/items/${other.id}`,
+          },
+        ]
+      : [];
+  const first = picture.sequenceId === PNX_SEQUENCES[0];
+  const files = `${HOST}/derivates/${picture.id}`;
+  return {
+    type: 'Feature',
+    id: picture.id,
+    collection: picture.sequenceId,
+    geometry: { type: 'Point', coordinates: [picture.lon, picture.lat] },
+    providers: [
+      {
+        name: first ? PNX_CREATOR : '[email protected]',
+        roles: ['producer'],
+      },
+    ],
+    properties: {
+      datetime: picture.datetime,
+      license: first ? 'CC-BY-SA-4.0' : 'etalab-2.0',
+      'view:azimuth': 90,
+      'pers:interior_orientation': picture.isPano
+        ? { field_of_view: 360, sensor_array_dimensions: [5760, 2880] }
+        : { field_of_view: 70, sensor_array_dimensions: [4032, 3024] },
+    },
+    assets: {
+      hd: { href: `${files}/hd.jpg` },
+      sd: { href: `${files}/sd.jpg` },
+      thumb: { href: `${files}/thumb.jpg` },
+    },
+    links: [
+      ...link('prev', sibling(-1)),
+      ...link('next', sibling(1)),
+      { rel: 'via', href: HOST },
+    ],
+  };
+}
+
+/** The tile `z/x/y` in the meta-catalogue's shape. */
+export function panoramaxTile(z, x, y) {
+  const tile = { x, y, z };
+  const { west, east, south, north } = tileBounds(x, y, z);
+  if (PNX_LINE.lat < south || PNX_LINE.lat > north) return new Uint8Array(0);
+  const from = Math.max(PNX_LINE.west, west);
+  const to = Math.min(PNX_LINE.east, east);
+  if (from >= to) return new Uint8Array(0);
+  if (z <= 5)
+    return encodePanoramaxTile(tile, {
+      grid: [{ lon: (from + to) / 2, lat: PNX_LINE.lat, pano: 30, flat: 170 }],
+    });
+  if (z < 7) return new Uint8Array(0);
+  const sequences = PNX_SEQUENCES.map((id, s) => ({
+    id,
+    type: s === 0 ? 'equirectangular' : 'flat',
+    date: s === 0 ? '2025-06-01' : '2023-03-01',
+    parts: [
+      [
+        [from, PNX_LINE.lat],
+        [to, PNX_LINE.lat],
+      ],
+    ],
+  }));
+  if (z < 15) return encodePanoramaxTile(tile, { sequences });
+  const pictures = panoramaxPictures()
+    .filter((p) => p.lon >= west && p.lon < east)
+    .map((p) => ({
+      id: p.id,
+      lon: p.lon,
+      lat: p.lat,
+      sequenceId: p.sequenceId,
+      heading: 90,
+      ts: p.datetime.replace('T', ' ').replace('+00:00', '+00'),
+      type: p.isPano ? 'equirectangular' : 'flat',
+    }));
+  return encodePanoramaxTile(tile, { sequences, pictures });
+}
+
+/** A call named by host, path shape and parameter names. */
+export function describePanoramaxCall(method, url) {
+  const keys = [...url.searchParams.keys()].sort();
+  const path = url.pathname
+    .replace(/\/map\/\d+\/\d+\/\d+\.mvt$/, '/map/{z}/{x}/{y}.mvt')
+    .replace(
+      /^\/derivates\/[\w-]+\/(sd|hd|thumb)\.jpg$/,
+      '/derivates/{id}/$1.jpg',
+    );
+  return `${method} ${url.hostname}${path}${keys.length ? `?${keys.join('&')}` : ''}`;
+}
+
+const json = (body) => ({
+  status: 200,
+  contentType: 'application/geo+json',
+  headers: CORS,
+  body: JSON.stringify(body),
+  known: true,
+});
+
+/**
+ * Answer one Panoramax request; `known` is false for a call no fixture
+ * covers, so the gate fails on a new one instead of missing it.
+ */
+export function answerPanoramaxRequest({ method, url }) {
+  const address = new URL(url);
+  if (method === 'OPTIONS')
+    return { status: 204, headers: CORS, body: '', known: true };
+  const pictures = panoramaxPictures();
+  if (address.hostname === new URL(HOST).hostname) {
+    const file = address.pathname.match(
+      /^\/derivates\/([\w-]+)\/(sd|hd|thumb)\.jpg$/,
+    );
+    if (!file || !pictures.some((p) => p.id === file[1]))
+      return { status: 404, headers: CORS, body: '', known: false };
+    if (file[2] === 'hd') asked.hd++;
+    return {
+      status: 200,
+      contentType: 'image/jpeg',
+      headers: CORS,
+      body: photoJpeg(),
+      known: true,
+    };
+  }
+  if (address.hostname !== 'api.panoramax.xyz')
+    return { status: 404, headers: CORS, body: '', known: false };
+  const tile = address.pathname.match(/^\/api\/map\/(\d+)\/(\d+)\/(\d+)\.mvt$/);
+  if (tile) {
+    const bytes = panoramaxTile(
+      Number(tile[1]),
+      Number(tile[2]),
+      Number(tile[3]),
+    );
+    return bytes.length
+      ? {
+          status: 200,
+          contentType: 'application/vnd.mapbox-vector-tile',
+          headers: CORS,
+          body: Buffer.from(bytes),
+          known: true,
+        }
+      : { status: 204, headers: CORS, body: '', known: true };
+  }
+  if (address.pathname !== '/api/search')
+    return { status: 404, headers: CORS, body: '', known: false };
+  asked.search++;
+  const q = address.searchParams;
+  if (q.has('ids')) {
+    const wanted = q.get('ids').split(',');
+    return json({
+      type: 'FeatureCollection',
+      features: pictures
+        .filter((p) => wanted.includes(p.id))
+        .map((p) => item(p, pictures)),
+    });
+  }
+  const filter = q.get('filter') || '';
+  const since = q.get('datetime')?.split('/')[0];
+  const kept = pictures
+    .filter(
+      (p) => !q.get('collections') || p.sequenceId === q.get('collections'),
+    )
+    .filter((p) =>
+      filter === 'field_of_view=360'
+        ? p.isPano
+        : filter === 'field_of_view<360'
+          ? !p.isPano
+          : true,
+    )
+    .filter((p) => !since || Date.parse(p.datetime) >= Date.parse(since));
+  // A box: every picture in it, nearest its centre first, as the live API
+  // returns them (roughly: the browser ranks them again).
+  if (q.has('bbox')) {
+    const [west, south, east, north] = q.get('bbox').split(',').map(Number);
+    const centre = { lon: (west + east) / 2, lat: (south + north) / 2 };
+    return json({
+      type: 'FeatureCollection',
+      features: kept
+        .filter(
+          (p) =>
+            p.lon >= west && p.lon <= east && p.lat >= south && p.lat <= north,
+        )
+        .map((p) => ({ p, metres: metresApart(centre, p) }))
+        .sort((a, b) => a.metres - b.metres || a.p.id.localeCompare(b.p.id))
+        .slice(0, Number(q.get('limit')) || 10)
+        .map(({ p }) => item(p, pictures)),
+    });
+  }
+  const [lon, lat] = (q.get('place_position') || '').split(',').map(Number);
+  const radius = Number((q.get('place_distance') || '0-50').split('-')[1]);
+  // As the API does, even at the widest tolerance: a place behind a
+  // picture (every one looks east) is not in it.
+  const facing = (p) => lon >= p.lon - 1e-7;
+  const near = kept
+    .filter(facing)
+    .map((p) => ({ p, metres: metresApart({ lon, lat }, p) }))
+    .filter(({ metres }) => metres <= radius)
+    .sort((a, b) => a.metres - b.metres)
+    .slice(0, Number(q.get('limit')) || 10)
+    .map(({ p }) => item(p, pictures));
+  return json({ type: 'FeatureCollection', features: near });
+}

scripts/format-scope.json

@@ -18,6 +18,10 @@
   "src/tooling/panelStorageDocs.test.mjs",
   "src/tooling/packageBoundaries.test.mjs",
   "src/data/infrastructure.js",
+  "src/data/aircraftEmergency.js",
+  "src/data/aircraftEmergency.test.mjs",
+  "src/data/aircraftEmergencyAnalyst.test.mjs",
+  "scripts/qa-emergency-squawk.mjs",
   "src/data/infrastructure.test.mjs",
   "src/data/localGeojsonCore.js",
   "src/data/localGeojsonLod.js",
@@ -26,6 +30,8 @@
   "src/annotations/drawMode.test.mjs",
   "src/annotations/drawTool.js",
   "src/annotations/drawTool.test.mjs",
+  "src/data/geoFileImport.test.mjs",
+  "src/ui/geoFileImport.test.mjs",
   "src/annotations/adminOutline.test.mjs",
   "src/annotations/regionRing.test.mjs",
   "src/data/adminBoundaries.test.mjs",
@@ -199,6 +205,9 @@
   "src/styles/snow.js",
   "scripts/qa-visual-effects.mjs",
   "scripts/qa-draw-tool.mjs",
+  "scripts/qa-geo-import.mjs",
+  "scripts/qa-geo-import-regressions.mjs",
+  "scripts/qa-geo-import-large.mjs",
   "src/ui/mapSource.js",
   "src/ui/mapSourceControls.js",
   "src/ui/mapSourceControls.test.mjs",
@@ -357,6 +366,12 @@
   "src/layers/vessels/tracking.js",
   "src/layers/vessels/ownership.test.mjs",
   "src/data/earthquakes.js",
+  "src/app/layers/airQuality.js",
+  "src/layers/airQuality/index.js",
+  "src/layers/airQuality/model.js",
+  "src/layers/airQuality/model.test.mjs",
+  "src/layers/airQuality/ownership.test.mjs",
+  "src/layers/airQuality/source.js",
   "src/layers/earthquakes/index.js",
   "src/layers/earthquakes/model.js",
   "src/layers/earthquakes/source.js",
@@ -726,6 +741,7 @@
   "src/search/nominatim.js",
   "src/search/nominatim.test.mjs",
   "src/sources/httpBody.js",
+  "src/sources/httpBody.test.mjs",
   "src/sources/overpass.js",
   "src/sources/nominatim.js",
   "server/providers/transit.js",
@@ -828,6 +844,16 @@
   "server/providers/firePerimeters.js",
   "src/data/cyclonesProxy.test.mjs",
   "src/data/firePerimetersProxy.test.mjs",
+  "server/providers/gnssIntegrity.js",
+  "src/data/gnssIntegrityProxy.test.mjs",
+  "src/app/layers/gnss.js",
+  "src/layers/gnss/index.js",
+  "src/layers/gnss/records.js",
+  "src/layers/gnss/source.js",
+  "src/layers/gnss/records.test.mjs",
+  "src/layers/gnss/source.test.mjs",
+  "src/layers/gnss/ownership.test.mjs",
+  "scripts/qa-gnss.mjs",
   "src/layers/cyclones/index.js",
   "src/layers/cyclones/rendering.js",
   "src/layers/cyclones/labels.js",
@@ -914,15 +940,33 @@
   "src/layers/streetLevel/providers/kartaview/source.js",
   "src/layers/streetLevel/providers/kartaview/decode.js",
   "src/layers/streetLevel/providers/kartaview/viewer.js",
-  "src/layers/streetLevel/providers/kartaview/panorama.js",
+  "src/layers/streetLevel/panorama.js",
   "src/layers/streetLevel/lineCoverage.js",
   "src/layers/streetLevel/sequenceCones.js",
   "src/layers/streetLevel/providers/kartaview/policy.test.mjs",
   "src/layers/streetLevel/providers/kartaview/decode.test.mjs",
   "src/layers/streetLevel/providers/kartaview/source.test.mjs",
-  "src/layers/streetLevel/providers/kartaview/panorama.test.mjs",
+  "src/layers/streetLevel/panorama.test.mjs",
   "src/layers/streetLevel/providers/kartaview/viewer.test.mjs",
   "src/layers/streetLevel/providers/kartaview/provider.test.mjs",
+  "src/layers/streetLevel/providers/panoramax/index.js",
+  "src/layers/streetLevel/providers/panoramax/policy.js",
+  "src/layers/streetLevel/providers/panoramax/source.js",
+  "src/layers/streetLevel/providers/panoramax/decode.js",
+  "src/layers/streetLevel/providers/panoramax/viewer.js",
+  "src/layers/streetLevel/photoViewer.js",
+  "src/layers/streetLevel/limiter.js",
+  "src/layers/streetLevel/imageSize.js",
+  "src/layers/streetLevel/tileCache.js",
+  "src/layers/streetLevel/providers/panoramax/policy.test.mjs",
+  "src/layers/streetLevel/providers/panoramax/decode.test.mjs",
+  "src/layers/streetLevel/providers/panoramax/source.test.mjs",
+  "src/layers/streetLevel/providers/panoramax/viewer.test.mjs",
+  "src/layers/streetLevel/providers/panoramax/provider.test.mjs",
+  "src/testSupport/panoramaxFixtures.mjs",
+  "src/layers/streetLevel/photoViewer.test.mjs",
+  "src/layers/streetLevel/limiter.test.mjs",
+  "src/layers/streetLevel/imageSize.test.mjs",
   "src/layers/streetLevel/lineCoverage.test.mjs",
   "src/testSupport/kartaViewFakes.mjs",
   "src/testSupport/googleStreetViewFakes.mjs",
@@ -939,6 +983,7 @@
   "src/qaChrome.test.mjs",
   "scripts/fixtures/street-level/mapillaryGraph.mjs",
   "scripts/fixtures/street-level/kartaView.mjs",
+  "scripts/fixtures/street-level/panoramax.mjs",
   "src/layers/streetLevel/filter.test.mjs",
   "src/layers/streetLevel/registry.test.mjs",
   "src/layers/streetLevel/params.test.mjs",
@@ -1002,5 +1047,7 @@
   "src/tools/globePanel.test.mjs",
   "src/costEndpointThrottle.test.mjs",
   "src/sources/gbfsStations.test.mjs",
-  "scripts/qa-gbfs-names.mjs"
+  "scripts/qa-gbfs-names.mjs",
+  "src/ui/flyToDataSource.js",
+  "src/ui/flyToDataSource.test.mjs"
 ]

scripts/package-boundaries.json

@@ -123,7 +123,12 @@
   "traffic-provider": {
     "runtime": "node",
     "exports": ["./server/providers/traffic"],
-    "modules": ["server/providers/traffic.js", "src/data/tomtomTiles.js"],
+    "modules": [
+      "server/providers/traffic.js",
+      "server/providers/common/http.js",
+      "src/sources/httpBody.js",
+      "src/data/tomtomTiles.js"
+    ],
     "external": []
   },
   "traffic-source": {
@@ -139,7 +144,12 @@
   "firms-provider": {
     "runtime": "node",
     "exports": ["./server/providers/firms"],
-    "modules": ["server/providers/firms.js", "src/data/firmsCsv.js"],
+    "modules": [
+      "server/providers/firms.js",
+      "server/providers/common/http.js",
+      "src/sources/httpBody.js",
+      "src/data/firmsCsv.js"
+    ],
     "external": []
   },
   "gbfs-provider": {
@@ -781,6 +791,7 @@
   "live-observations": {
     "exports": ["./sources/live"],
     "modules": [
+      "src/data/aircraftEmergency.js",
       "src/sources/live/aircraft.js",
       "src/sources/live/contract.js",
       "src/sources/live/index.js",
@@ -794,6 +805,7 @@
     "modules": [
       "src/cyberSonar.js",
       "src/data/aircraftClass.js",
+      "src/data/aircraftEmergency.js",
       "src/data/aircraftIcons.js",
       "src/data/aircraftMeta.js",
       "src/data/aircraftNearbyPolicy.js",
@@ -837,6 +849,7 @@
     "modules": [
       "src/cyberSonar.js",
       "src/data/aircraftClass.js",
+      "src/data/aircraftEmergency.js",
       "src/data/aircraftIcons.js",
       "src/data/aircraftMeta.js",
       "src/data/aircraftNearbyPolicy.js",
@@ -1234,7 +1247,16 @@
       "src/layers/streetLevel/providers/kartaview/source.js",
       "src/layers/streetLevel/providers/kartaview/decode.js",
       "src/layers/streetLevel/providers/kartaview/viewer.js",
-      "src/layers/streetLevel/providers/kartaview/panorama.js",
+      "src/layers/streetLevel/providers/panoramax/index.js",
+      "src/layers/streetLevel/providers/panoramax/policy.js",
+      "src/layers/streetLevel/providers/panoramax/source.js",
+      "src/layers/streetLevel/providers/panoramax/decode.js",
+      "src/layers/streetLevel/providers/panoramax/viewer.js",
+      "src/layers/streetLevel/photoViewer.js",
+      "src/layers/streetLevel/limiter.js",
+      "src/layers/streetLevel/imageSize.js",
+      "src/layers/streetLevel/tileCache.js",
+      "src/layers/streetLevel/panorama.js",
       "src/layers/streetLevel/lineCoverage.js",
       "src/layers/streetLevel/sequenceCones.js",
       "src/layers/streetLevel/providers/mapillary/source.js",
@@ -1502,6 +1524,7 @@
       "src/contextModePolicy.js",
       "src/creditKeyboard.js",
       "src/data/aircraftClass.js",
+      "src/data/aircraftEmergency.js",
       "src/data/aircraftIcons.js",
       "src/data/aircraftMeta.js",
       "src/data/aircraftNearbyPolicy.js",
@@ -2014,6 +2037,9 @@
       "src/data/inputOwnership.js",
       "src/annotations/drawMode.js",
       "src/annotations/drawTool.js",
+      "src/data/geoFileImport.js",
+      "src/ui/flyToDataSource.js",
+      "src/ui/geoFileImport.js",
       "src/data/routeSteps.js",
       "src/layers/directions/index.js",
       "src/layers/directions/source.js",
@@ -2037,6 +2063,10 @@
       "src/layers/perimeters/records.js",
       "src/layers/perimeters/cards.js",
       "src/layers/perimeters/inciweb.js",
+      "src/app/layers/gnss.js",
+      "src/layers/gnss/index.js",
+      "src/layers/gnss/source.js",
+      "src/layers/gnss/records.js",
       "src/layers/cctv/sourcePolicy.js",
       "src/sources/reference.js",
       "src/search/nominatim.js",
@@ -2202,7 +2232,16 @@
       "src/layers/streetLevel/providers/kartaview/source.js",
       "src/layers/streetLevel/providers/kartaview/decode.js",
       "src/layers/streetLevel/providers/kartaview/viewer.js",
-      "src/layers/streetLevel/providers/kartaview/panorama.js",
+      "src/layers/streetLevel/providers/panoramax/index.js",
+      "src/layers/streetLevel/providers/panoramax/policy.js",
+      "src/layers/streetLevel/providers/panoramax/source.js",
+      "src/layers/streetLevel/providers/panoramax/decode.js",
+      "src/layers/streetLevel/providers/panoramax/viewer.js",
+      "src/layers/streetLevel/photoViewer.js",
+      "src/layers/streetLevel/limiter.js",
+      "src/layers/streetLevel/imageSize.js",
+      "src/layers/streetLevel/tileCache.js",
+      "src/layers/streetLevel/panorama.js",
       "src/layers/streetLevel/lineCoverage.js",
       "src/layers/streetLevel/sequenceCones.js",
       "src/layers/streetLevel/providers/mapillary/source.js",
@@ -2225,7 +2264,14 @@
       "src/tools/functions.js",
       "src/voice/actionSchemas.js",
       "src/view/index.js",
-      "src/app/embed.js"
+      "src/app/embed.js",
+      "src/data/cameraFraming.js",
+      "src/data/geoImportPins.js",
+      "src/data/geoImportImages.js",
+      "src/app/layers/airQuality.js",
+      "src/layers/airQuality/index.js",
+      "src/layers/airQuality/model.js",
+      "src/layers/airQuality/source.js"
     ],
     "external": [
       "hls.js",
@@ -2292,6 +2338,7 @@
       "src/celestialRing.js",
       "src/cockpitMath.js",
       "src/data/aircraftClass.js",
+      "src/data/aircraftEmergency.js",
       "src/data/aircraftIcons.js",
       "src/data/aircraftMeta.js",
       "src/data/aircraftNearbyPolicy.js",
@@ -2629,6 +2676,10 @@
       "src/layers/perimeters/records.js",
       "src/layers/perimeters/cards.js",
       "src/layers/perimeters/inciweb.js",
+      "src/app/layers/gnss.js",
+      "src/layers/gnss/index.js",
+      "src/layers/gnss/source.js",
+      "src/layers/gnss/records.js",
       "src/layers/cctv/sourcePolicy.js",
       "src/search/nominatim.js",
       "src/nominatimGeocode.js",
@@ -2741,7 +2792,16 @@
       "src/layers/streetLevel/providers/kartaview/source.js",
       "src/layers/streetLevel/providers/kartaview/decode.js",
       "src/layers/streetLevel/providers/kartaview/viewer.js",
-      "src/layers/streetLevel/providers/kartaview/panorama.js",
+      "src/layers/streetLevel/providers/panoramax/index.js",
+      "src/layers/streetLevel/providers/panoramax/policy.js",
+      "src/layers/streetLevel/providers/panoramax/source.js",
+      "src/layers/streetLevel/providers/panoramax/decode.js",
+      "src/layers/streetLevel/providers/panoramax/viewer.js",
+      "src/layers/streetLevel/photoViewer.js",
+      "src/layers/streetLevel/limiter.js",
+      "src/layers/streetLevel/imageSize.js",
+      "src/layers/streetLevel/tileCache.js",
+      "src/layers/streetLevel/panorama.js",
       "src/layers/streetLevel/lineCoverage.js",
       "src/layers/streetLevel/sequenceCones.js",
       "src/layers/streetLevel/providers/mapillary/source.js",
@@ -2760,7 +2820,12 @@
       "src/data/local_data/osm_military_names/names.json",
       "src/layers/installations/namedMarkers.js",
       "src/data/infrastructureOverlayEntry.js",
-      "src/sources/infrastructureData.js"
+      "src/sources/infrastructureData.js",
+      "src/data/cameraFraming.js",
+      "src/app/layers/airQuality.js",
+      "src/layers/airQuality/index.js",
+      "src/layers/airQuality/model.js",
+      "src/layers/airQuality/source.js"
     ],
     "external": [
       "hls.js",
@@ -2825,7 +2890,8 @@
       "src/sources/overpassFeatures.js",
       "src/sources/featureSource.js",
       "src/sources/capability.js",
-      "src/data/cameraArrival.js"
+      "src/data/cameraArrival.js",
+      "src/data/cameraFraming.js"
     ],
     "external": [
       "cesium",
@@ -2921,7 +2987,8 @@
       "src/layers/flights/recordPolicy.js",
       "src/data/aircraftMeta.js",
       "src/data/renderAltitude.js",
-      "src/data/aircraftClass.js"
+      "src/data/aircraftClass.js",
+      "src/data/aircraftEmergency.js"
     ],
     "external": []
   },
@@ -2940,7 +3007,8 @@
       "src/layers/military/recordPolicy.js",
       "src/data/aircraftMeta.js",
       "src/data/renderAltitude.js",
-      "src/data/aircraftClass.js"
+      "src/data/aircraftClass.js",
+      "src/data/aircraftEmergency.js"
     ],
     "external": []
   },
@@ -3137,7 +3205,10 @@
       "src/sources/httpBody.js",
       "src/layers/perimeters/source.js",
       "src/layers/perimeters/records.js",
-      "src/layers/submarineCables/bundledSource.js"
+      "src/layers/submarineCables/bundledSource.js",
+      "src/layers/gnss/source.js",
+      "src/layers/airQuality/model.js",
+      "src/layers/airQuality/source.js"
     ],
     "external": []
   },
@@ -3348,6 +3419,21 @@
     ],
     "external": ["cesium"]
   },
+  "gnss": {
+    "exports": ["./layers/gnss"],
+    "modules": [
+      "src/layers/gnss/index.js",
+      "src/sources/httpBody.js",
+      "src/layers/gnss/source.js",
+      "src/layers/gnss/records.js"
+    ],
+    "external": ["cesium"]
+  },
+  "gnss-source": {
+    "exports": ["./layers/gnss/source"],
+    "modules": ["src/sources/httpBody.js", "src/layers/gnss/source.js"],
+    "external": []
+  },
   "perimeters-source": {
     "exports": ["./layers/perimeters/source"],
     "modules": [
@@ -3475,6 +3561,7 @@
       "src/sources/featureGeometry.js",
       "src/sources/live/standalone.js",
       "src/sources/live/contract.js",
+      "src/data/aircraftEmergency.js",
       "src/sources/live/aircraft.js",
       "src/sources/live/vessels.js",
       "src/tools/places.js",
@@ -3504,5 +3591,24 @@
       "src/data/layerStateTokenReservations.json"
     ],
     "external": []
+  },
+  "air-quality": {
+    "exports": ["./layers/air-quality"],
+    "modules": [
+      "src/layers/airQuality/index.js",
+      "src/layers/airQuality/model.js",
+      "src/layers/airQuality/source.js",
+      "src/sources/httpBody.js"
+    ],
+    "external": ["cesium"]
+  },
+  "air-quality-source": {
+    "exports": ["./layers/air-quality/source"],
+    "modules": [
+      "src/layers/airQuality/model.js",
+      "src/layers/airQuality/source.js",
+      "src/sources/httpBody.js"
+    ],
+    "external": []
   }
 }

scripts/qa-air-quality.mjs

@@ -0,0 +1,171 @@
+/**
+ * qa-air-quality.mjs — headless proof for the Air quality layer.
+ *
+ * Checks what unit tests cannot: that the live ECCC feed answers, that readings
+ * reach the app in the provider-shaped form other networks will share, and that
+ * the Weather readout descriptor carries a legend and an in-view list.
+ *
+ * AQHI is reported by ECCC as an integer from 1 with "10+" above ten. The API
+ * returns the underlying decimal, so a reading arriving as 1.08 — or a station
+ * with no reading surfacing as a confident 1 — is a real defect this catches.
+ *
+ * Run:  node scripts/qa-air-quality.mjs --url http://localhost:4173
+ */
+
+import puppeteer from 'puppeteer';
+
+const argv = process.argv.slice(2);
+const getOpt = (name, dflt) => {
+  const i = argv.indexOf(name);
+  return i >= 0 && argv[i + 1] ? argv[i + 1] : dflt;
+};
+const APP_URL = getOpt('--url', 'http://localhost:4173');
+
+const results = [];
+function record(name, ok, detail) {
+  results.push({ name, ok, detail });
+  const tag = ok ? '\x1b[32mPASS\x1b[0m' : '\x1b[31mFAIL\x1b[0m';
+  console.log(`  [${tag}] ${name}${detail ? `  — ${detail}` : ''}`);
+}
+const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+
+async function main() {
+  let exitCode = 0;
+  const consoleErrors = [];
+  const browser = await puppeteer.launch({
+    headless: 'new',
+    args: [
+      '--use-gl=swiftshader',
+      '--enable-unsafe-swiftshader',
+      '--no-sandbox',
+      '--disable-dev-shm-usage',
+    ],
+    defaultViewport: { width: 1400, height: 900 },
+  });
+
+  try {
+    const page = await browser.newPage();
+    page.on('pageerror', (e) => consoleErrors.push(String(e).slice(0, 160)));
+    page.on('console', (m) => {
+      if (m.type() === 'error') consoleErrors.push(m.text().slice(0, 160));
+    });
+
+    await page.goto(APP_URL, { waitUntil: 'domcontentloaded', timeout: 90000 });
+    await page.waitForFunction(
+      () => window.__godsEyeView?.viewer && window.__godsEyeView?.dataManager,
+      { timeout: 90000 },
+    );
+    await sleep(1500);
+
+    const stats = await page.evaluate(async () => {
+      const dm = window.__godsEyeView.dataManager;
+      await dm.setEnabled('air-quality', true);
+      const mod = dm.layers.get('air-quality')?.module;
+      if (!mod) return { missing: true };
+      let s = null;
+      for (let i = 0; i < 45; i++) {
+        await new Promise((r) => setTimeout(r, 1000));
+        s = mod.getStats();
+        if (s.count > 0 || s.error) break;
+      }
+      return s;
+    });
+
+    const loaded = !stats?.missing && !stats?.error && stats?.count > 0;
+    record('stations report a current index', loaded,
+      `count=${stats?.count} error=${stats?.error}`);
+    if (!loaded) exitCode = 1;
+
+    const records = await page.evaluate(
+      () =>
+        window.__godsEyeView.dataManager
+          .layers.get('air-quality')
+          ?.module.getAnalystRecords(500) || [],
+    );
+
+    // The provider-neutral contract other networks will share.
+    const shaped = records.every(
+      (r) => r.provider && r.scale && Number.isFinite(r.value) && r.band,
+    );
+    record('every reading carries provider, scale, value and band', shaped,
+      records.length
+        ? `sample={provider:${records[0].provider}, scale:${records[0].scale}, value:${records[0].value}, band:${records[0].band}}`
+        : 'no records');
+    if (!shaped) exitCode = 1;
+
+    const published = records.every((r) => Number.isInteger(r.value) && r.value >= 1);
+    record('every AQHI value is in the published integer form, floored at 1', published,
+      `values=${[...new Set(records.map((r) => r.value))].sort((a, b) => a - b).join(',')}`);
+    if (!published) exitCode = 1;
+
+    const zones = [...new Set(records.map((r) => r.zone).filter(Boolean))].sort();
+    record('coverage spans multiple ECCC administrative zones', zones.length >= 3,
+      `zones=${zones.join(',') || 'none'} stations=${records.length}`);
+    if (zones.length < 3) exitCode = 1;
+
+    // The card's whole point is "highest readings in view", so put the camera
+    // over Canada before asserting on it — the default view is over Austin,
+    // where an empty in-view list is correct and proves nothing.
+    await page.evaluate(() => {
+      const gev = window.__godsEyeView;
+      const ellipsoid = gev.viewer.scene.globe.ellipsoid;
+      const d2r = Math.PI / 180;
+      try {
+        gev.viewer.camera.cancelFlight();
+      } catch {
+        /* no flight in progress */
+      }
+      gev.viewer.camera.setView({
+        destination: ellipsoid.cartographicToCartesian({
+          longitude: -100 * d2r,
+          latitude: 55 * d2r,
+          height: 4_000_000,
+        }),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      gev.viewer.scene.requestRender?.();
+    });
+    await sleep(2500);
+
+    const controls = await page.evaluate(
+      () =>
+        window.__godsEyeView.dataManager
+          .layers.get('air-quality')
+          ?.module.getRowControls?.() || null,
+    );
+    const readoutOk =
+      controls?.readout === true &&
+      Array.isArray(controls?.legend?.colors) &&
+      controls.legend.colors.length === controls.legend.labels.length &&
+      Array.isArray(controls?.list?.items) &&
+      controls.list.items.length > 0 &&
+      controls.list.items.every((item) => item.id && item.label && item.value) &&
+      /Canada only/.test(controls?.summary?.coverage || '');
+    record('the Weather readout lists the worst readings in view, with a legend', readoutOk,
+      controls
+        ? `bands=${controls.legend?.labels?.join('/')} inView=${controls.list?.items?.length} coverage="${controls.summary?.coverage}"`
+        : 'no descriptor');
+    if (!readoutOk) exitCode = 1;
+
+    record('no console errors', consoleErrors.length === 0,
+      consoleErrors.length ? consoleErrors.slice(0, 2).join(' | ') : 'clean');
+    if (consoleErrors.length) exitCode = 1;
+  } catch (e) {
+    console.error('\x1b[31mHarness error:\x1b[0m', e);
+    exitCode = 3;
+  } finally {
+    await browser.close();
+  }
+
+  const pass = results.filter((r) => r.ok === true).length;
+  const fail = results.filter((r) => r.ok === false).length;
+  console.log('\n' + '─'.repeat(60));
+  console.log(`  RESULT: ${pass} passed, ${fail} failed`);
+  console.log('─'.repeat(60) + '\n');
+  process.exit(exitCode || (fail > 0 ? 1 : 0));
+}
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(3);
+});

scripts/qa-emergency-squawk.mjs

@@ -0,0 +1,554 @@
+#!/usr/bin/env node
+/**
+ * qa-emergency-squawk.mjs — headless proof for transponder emergency highlighting.
+ *
+ * Drives the REAL app in headless Chromium against a dev server (keyless).
+ * `/api/flights` and `/api/military` are stubbed in the page so the codes
+ * are deterministic; everything downstream (normalizers, records, rendering,
+ * Cockpit HUD) is production code.
+ *
+ *   (i)   TINT — a civil 7600 and a military ADS-B `general` emergency are
+ *         drawn red; a normal civil flight stays white, a normal military
+ *         flight stays amber, and a military `minfuel` priority stays amber.
+ *         POLL/MODELS verify existing untracked billboards and 3D models
+ *         repaint when emergency status starts and clears.
+ *   (ii)  HUD — tracking the military emergency and entering Cockpit names
+ *         the broadcast code on the aircraft-meta line, in red.
+ *   (iii) CLEAR — the next poll drops the code: the HUD line returns to its
+ *         normal wording (the status is not sticky).
+ *   (iv)  RELEASE — the code returns and tracking stops: the restored fleet
+ *         billboard is red, not the plain military amber.
+ *
+ * Screenshots saved to qa-shots/emergency-*.png (gitignored).
+ *
+ * Run:  node scripts/qa-emergency-squawk.mjs --url http://localhost:4173
+ * Optional: --timeout-ms 180000 for a slow boot.
+ * Exits non-zero on any FAIL. Does not commit anything.
+ */
+
+import puppeteer from 'puppeteer';
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const REPO_ROOT = path.resolve(__dirname, '..');
+const SHOTS_DIR = path.join(REPO_ROOT, 'qa-shots');
+
+const argv = process.argv.slice(2);
+const getOpt = (name, dflt) => {
+  const i = argv.indexOf(name);
+  return i >= 0 && argv[i + 1] ? argv[i + 1] : dflt;
+};
+const APP_URL = getOpt('--url', 'http://localhost:4173');
+const HEADFUL = argv.includes('--headful');
+const TIMEOUT_MS = Number(getOpt('--timeout-ms', '60000'));
+const CENTER = { lon: 4.0, lat: 53.5 };
+
+const results = [];
+function record(name, ok, detail) {
+  results.push({ name, ok, detail });
+  const tag = ok ? '\x1b[32mPASS\x1b[0m' : '\x1b[31mFAIL\x1b[0m';
+  console.log(`  [${tag}] ${name}${detail ? `  — ${detail}` : ''}`);
+}
+const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+
+/** OpenSky state vector: squawk sits at index 14. */
+const civilRow = (icao24, callsign, lon, lat, squawk) => [
+  icao24,
+  callsign,
+  'Netherlands',
+  null,
+  null,
+  lon,
+  lat,
+  10000,
+  false,
+  230,
+  90,
+  0,
+  null,
+  10050,
+  squawk,
+  false,
+  0,
+];
+
+/** readsb row as adsb.lol /v2/mil returns it. */
+const milRow = (hex, flight, lon, lat, squawk, emergency) => ({
+  hex,
+  flight,
+  lon,
+  lat,
+  alt_baro: 24000,
+  alt_geom: 24200,
+  gs: 380,
+  track: 270,
+  t: 'C17',
+  r: `QA-${hex}`,
+  squawk,
+  emergency,
+  seen: 1,
+  seen_pos: 1,
+});
+
+/** Page-side route stubs; `__squawkQaPhase` switches the military emergency off. */
+function installStubs() {
+  const realFetch = window.fetch.bind(window);
+  window.__squawkQaPhase = 'emergency';
+  const json = (body) =>
+    Promise.resolve(
+      new Response(JSON.stringify(body), {
+        status: 200,
+        headers: { 'Content-Type': 'application/json' },
+      }),
+    );
+  window.fetch = (input, init) => {
+    const url = typeof input === 'string' ? input : input?.url || '';
+    const now = Date.now();
+    const { civil, mil } = window.__squawkQaFixtures;
+    if (
+      url.includes('/api/flights/track') ||
+      url.includes('/api/military/track')
+    )
+      return json({ path: [] });
+    if (url.includes('/api/flights')) {
+      const t = Math.floor(now / 1000);
+      return json({
+        time: t,
+        states: civil.map((row) => {
+          const copy = [...row];
+          copy[3] = t - 1;
+          copy[4] = t - 1;
+          return copy;
+        }),
+      });
+    }
+    if (url.includes('/api/military')) {
+      const cleared = window.__squawkQaPhase === 'cleared';
+      return json({
+        msg: 'No error',
+        now,
+        ac: mil.map((row) =>
+          cleared && row.hex === 'ae7700'
+            ? { ...row, squawk: '4521', emergency: 'none' }
+            : row,
+        ),
+      });
+    }
+    return realFetch(input, init);
+  };
+}
+
+/** Colour of every shown fleet billboard whose id is one of `ids`. */
+function billboardColors(ids) {
+  const { viewer } = window.__godsEyeView;
+  const found = {};
+  const seen = new Set();
+  const visit = (primitive) => {
+    if (!primitive || seen.has(primitive)) return;
+    seen.add(primitive);
+    if (
+      typeof primitive.length !== 'number' ||
+      typeof primitive.get !== 'function'
+    )
+      return;
+    for (let i = 0; i < primitive.length; i++) {
+      const item = primitive.get(i);
+      if (item?.color && ids.includes(item.id) && item.show !== false) {
+        found[item.id] = {
+          r: Math.round(item.color.red * 255),
+          g: Math.round(item.color.green * 255),
+          b: Math.round(item.color.blue * 255),
+        };
+      } else visit(item);
+    }
+  };
+  visit(viewer.scene.primitives);
+  return found;
+}
+
+const isRed = (c) => Boolean(c) && c.r > 200 && c.g < 110 && c.b < 110;
+const isWhite = (c) => Boolean(c) && c.r > 220 && c.g > 220 && c.b > 220;
+const isAmber = (c) =>
+  Boolean(c) && c.r > 180 && c.g > 110 && c.b < 140 && !isRed(c);
+
+async function shoot(page, name) {
+  await page
+    .waitForFunction(
+      () => window.__godsEyeView.viewer.scene.globe.tilesLoaded,
+      { timeout: 30000 },
+    )
+    .catch(() => {});
+  await sleep(600);
+  await page.screenshot({
+    path: path.join(SHOTS_DIR, `emergency-${name}.png`),
+  });
+}
+
+async function main() {
+  console.log('\nEmergency squawk proof (qa-emergency-squawk)');
+  console.log(`  App URL : ${APP_URL}\n`);
+  try {
+    const res = await fetch(APP_URL);
+    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+  } catch (e) {
+    console.error(
+      `\x1b[31mDev server not reachable at ${APP_URL} (${e.message}).\x1b[0m`,
+    );
+    process.exit(2);
+  }
+  fs.mkdirSync(SHOTS_DIR, { recursive: true });
+  const executablePath =
+    process.env.PUPPETEER_EXECUTABLE_PATH ||
+    (await puppeteer.executablePath().catch(() => null)) ||
+    undefined;
+  const browser = await puppeteer.launch({
+    headless: HEADFUL ? false : 'new',
+    protocolTimeout: 180000,
+    ...(executablePath && fs.existsSync(executablePath)
+      ? { executablePath }
+      : {}),
+    args: [
+      '--use-gl=angle',
+      '--use-angle=swiftshader',
+      '--disable-dev-shm-usage',
+      '--disable-background-timer-throttling',
+      '--disable-renderer-backgrounding',
+      '--window-size=1440,900',
+    ],
+  });
+
+  let exitCode = 0;
+  const errors = [];
+  try {
+    const page = await browser.newPage();
+    await page.setViewport({ width: 1440, height: 900 });
+    page.on('pageerror', (e) => errors.push(e.message));
+    const { lon, lat } = CENTER;
+    await page.evaluateOnNewDocument(
+      (fixtures) => {
+        window.__squawkQaFixtures = fixtures;
+      },
+      {
+        civil: [
+          civilRow('4847a1', 'KLM7600 ', lon - 0.6, lat + 0.25, '7600'),
+          civilRow('4847a2', 'KLM1234 ', lon - 0.6, lat - 0.25, '2000'),
+        ],
+        mil: [
+          milRow('ae7700', 'RCH7700', lon + 0.6, lat + 0.25, '1200', 'general'),
+          milRow('ae0f01', 'RCH0F01', lon + 0.6, lat - 0.25, '1234', 'minfuel'),
+          milRow('ae0001', 'RCH0001', lon, lat - 0.5, '4520', 'none'),
+        ],
+      },
+    );
+    // Stub in-page rather than with request interception: an intercepted page
+    // stalls Cesium's workers (see qa-gnss.mjs).
+    await page.evaluateOnNewDocument(installStubs);
+    await page.goto(`${APP_URL}/?welcome=0`, {
+      waitUntil: 'domcontentloaded',
+      timeout: TIMEOUT_MS,
+    });
+    await page.waitForFunction(
+      () => window.__godsEyeView?.viewer && window.__godsEyeView?.dataManager,
+      { timeout: TIMEOUT_MS },
+    );
+    await sleep(5000);
+    await page.keyboard.press('Escape');
+    await page.evaluate(
+      (lo, la) => {
+        const gev = window.__godsEyeView;
+        const d2r = Math.PI / 180;
+        try {
+          gev.viewer.camera.cancelFlight();
+        } catch {
+          /* no flight active */
+        }
+        gev.viewer.camera.setView({
+          destination: gev.viewer.scene.globe.ellipsoid.cartographicToCartesian(
+            {
+              longitude: lo * d2r,
+              latitude: la * d2r,
+              height: 260000,
+            },
+          ),
+          orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+        });
+        gev.viewer.scene.requestRender?.();
+      },
+      lon,
+      lat,
+    );
+
+    // ── (i) TINT ──────────────────────────────────────────────────────────
+    console.log('(i) TINT — emergency codes through the real layers...');
+    await page.evaluate(async () => {
+      const dm = window.__godsEyeView.dataManager;
+      await dm.setEnabled('flights', true, { origin: 'user' });
+      await dm.setEnabled('military', true, { origin: 'user' });
+    });
+    const ids = ['4847a1', '4847a2', 'ae7700', 'ae0f01', 'ae0001'];
+    const probe = `(${billboardColors})(${JSON.stringify(ids)})`;
+    await page
+      .waitForFunction(`Object.keys(${probe}).length === ${ids.length}`, {
+        timeout: TIMEOUT_MS,
+        polling: 500,
+      })
+      .catch(() => {});
+    await sleep(1500);
+    const colors = await page.evaluate(probe);
+    const show = (id) => JSON.stringify(colors[id] ?? null);
+    record(
+      'TINT: civil squawk 7600 is red',
+      isRed(colors['4847a1']),
+      show('4847a1'),
+    );
+    record(
+      'TINT: normal civil flight stays white',
+      isWhite(colors['4847a2']),
+      show('4847a2'),
+    );
+    record(
+      'TINT: military ADS-B general emergency is red',
+      isRed(colors.ae7700),
+      show('ae7700'),
+    );
+    record(
+      'TINT: military minimum-fuel priority stays amber',
+      isAmber(colors.ae0f01),
+      show('ae0f01'),
+    );
+    record(
+      'TINT: normal military flight stays amber',
+      isAmber(colors.ae0001),
+      show('ae0001'),
+    );
+    await shoot(page, 'globe-tint');
+
+    // Existing untracked billboards and models must repaint in both directions.
+    await page.evaluate(async () => {
+      window.__squawkQaPhase = 'cleared';
+      await window.__godsEyeView.dataManager.refreshLayer('military');
+    });
+    record(
+      'POLL: existing military billboard clears to amber',
+      isAmber((await page.evaluate(probe)).ae7700),
+    );
+    await page.evaluate(async () => {
+      window.__squawkQaPhase = 'emergency';
+      await window.__godsEyeView.dataManager.refreshLayer('military');
+    });
+    record(
+      'POLL: existing military billboard turns red again',
+      isRed((await page.evaluate(probe)).ae7700),
+    );
+    const modelProbe = () => {
+      const found = {};
+      const visit = (items) => {
+        for (let i = 0; i < items.length; i++) {
+          const item = items.get(i);
+          if (item.ready && item.color && typeof item.id === 'string')
+            found[item.id] = {
+              r: Math.round(item.color.red * 255),
+              g: Math.round(item.color.green * 255),
+              b: Math.round(item.color.blue * 255),
+            };
+          else if (item.get) visit(item);
+        }
+      };
+      visit(window.__godsEyeView.viewer.scene.primitives);
+      return found;
+    };
+    await page.waitForFunction(
+      `(${modelProbe})()['4847a1'] && (${modelProbe})().ae7700`,
+      { timeout: TIMEOUT_MS, polling: 250 },
+    );
+    const beforeModels = await page.evaluate(modelProbe);
+    record(
+      'MODELS: civil and military emergency models are red',
+      isRed(beforeModels['4847a1']) && isRed(beforeModels.ae7700),
+      JSON.stringify(beforeModels),
+    );
+    await page.evaluate(async () => {
+      window.__squawkQaFixtures.civil[0][14] = '2000';
+      window.__squawkQaFixtures.civil[1][14] = '7600';
+      window.__squawkQaPhase = 'cleared';
+      const dm = window.__godsEyeView.dataManager;
+      await dm.refreshLayer('flights');
+      await dm.refreshLayer('military');
+    });
+    await page.waitForFunction(
+      `(${modelProbe})()['4847a1']?.g > 220 && (${modelProbe})()['4847a2']?.g < 110 && (${modelProbe})().ae7700?.g > 110`,
+      { timeout: TIMEOUT_MS, polling: 250 },
+    );
+    const afterModels = await page.evaluate(modelProbe);
+    record(
+      'MODELS: existing civil models start and clear, military clears',
+      isWhite(afterModels['4847a1']) &&
+        isRed(afterModels['4847a2']) &&
+        isAmber(afterModels.ae7700),
+      JSON.stringify(afterModels),
+    );
+    await page.evaluate(async () => {
+      window.__squawkQaFixtures.civil[0][14] = '7600';
+      window.__squawkQaFixtures.civil[1][14] = '2000';
+      window.__squawkQaFixtures.mil[0].squawk = '7700';
+      window.__squawkQaPhase = 'emergency';
+      const dm = window.__godsEyeView.dataManager;
+      await dm.refreshLayer('flights');
+      await dm.refreshLayer('military');
+    });
+    // ── (ii) HUD ──────────────────────────────────────────────────────────
+    console.log('\n(ii) HUD — track the emergency and enter Cockpit...');
+    const tracked = await page.evaluate(() =>
+      Boolean(
+        window.__godsEyeView.dataManager.layers
+          .get('military')
+          .module.trackById('ae7700', { origin: 'user' }),
+      ),
+    );
+    record(
+      'HUD: emergency aircraft can be tracked',
+      tracked,
+      `tracked=${tracked}`,
+    );
+    // Cockpit entry is gated on the Contacts (flights) context mode.
+    await page.evaluate(() =>
+      window.__godsEyeView.styleManager._contextControls._selectContextMode(
+        'flights',
+      ),
+    );
+    await page
+      .waitForFunction(
+        () => {
+          const entry = document.getElementById('cockpit-entry');
+          return entry && !entry.hidden && !entry.disabled;
+        },
+        { timeout: 20000 },
+      )
+      .catch(() => {});
+    await page
+      .$eval('#cockpit-entry', (entry) => entry.click())
+      .catch(() => {});
+    const hudReady = await page
+      .waitForFunction(
+        () =>
+          document.body.classList.contains('cockpit-mode') &&
+          /SQUAWK 7700/.test(
+            document.getElementById('cockpit-aircraft-meta')?.textContent || '',
+          ),
+        { timeout: 30000 },
+      )
+      .then(
+        () => true,
+        () => false,
+      );
+    const hud = await page.evaluate(() => {
+      const meta = document.getElementById('cockpit-aircraft-meta');
+      return {
+        cockpit: document.body.classList.contains('cockpit-mode'),
+        text: meta?.textContent || '',
+        emergencyClass: meta?.classList.contains('emergency') || false,
+        color: meta ? getComputedStyle(meta).color : null,
+      };
+    });
+    record(
+      'HUD: meta line names the broadcast code',
+      hudReady && hud.text.includes('SQUAWK 7700 · GENERAL EMERGENCY'),
+      JSON.stringify(hud),
+    );
+    record(
+      'HUD: meta line is styled as an emergency',
+      hud.emergencyClass && /255,\s*68,\s*68/.test(hud.color || ''),
+      `class=${hud.emergencyClass} color=${hud.color}`,
+    );
+    const trackedBroadcast = await page.evaluate(
+      () =>
+        window.__godsEyeView.dataManager.layers
+          .get('military')
+          .module.getTrackedInfo().emergencyBroadcast,
+    );
+    record(
+      'TRACKED: voice-facing status quotes the broadcast',
+      trackedBroadcast === 'broadcasting squawk 7700 (general emergency)',
+      trackedBroadcast,
+    );
+    await shoot(page, 'cockpit-hud');
+
+    // ── (iii) CLEAR ───────────────────────────────────────────────────────
+    console.log('\n(iii) CLEAR — the next poll drops the code...');
+    await page.evaluate(async () => {
+      window.__squawkQaPhase = 'cleared';
+      await window.__godsEyeView.dataManager.refreshLayer('military');
+    });
+    const cleared = await page
+      .waitForFunction(
+        () =>
+          !document
+            .getElementById('cockpit-aircraft-meta')
+            ?.classList.contains('emergency'),
+        { timeout: 20000 },
+      )
+      .then(
+        () => true,
+        () => false,
+      );
+    const after = await page.evaluate(
+      () => document.getElementById('cockpit-aircraft-meta')?.textContent || '',
+    );
+    record(
+      'CLEAR: HUD returns to its normal wording',
+      cleared && !after.includes('SQUAWK') && after.includes('COURSE ALIGNED'),
+      JSON.stringify(after),
+    );
+    await shoot(page, 'cockpit-cleared');
+
+    // ── (iv) RELEASE ──────────────────────────────────────────────────────
+    console.log('\n(iv) RELEASE — the code returns, then tracking stops...');
+    await page.evaluate(async () => {
+      window.__squawkQaPhase = 'emergency';
+      const dm = window.__godsEyeView.dataManager;
+      await dm.refreshLayer('military');
+      dm.layers.get('military').module.stopTracking({ origin: 'user' });
+    });
+    const releaseProbe = `(${billboardColors})(["ae7700"])`;
+    const released = await page
+      .waitForFunction(`Boolean((${releaseProbe}).ae7700)`, {
+        timeout: 20000,
+        polling: 250,
+      })
+      .then(
+        () => true,
+        () => false,
+      );
+    const releasedColor = (await page.evaluate(releaseProbe)).ae7700;
+    record(
+      'RELEASE: untracked emergency billboard is red',
+      released && isRed(releasedColor),
+      JSON.stringify(releasedColor ?? null),
+    );
+    record(
+      'no uncaught browser errors',
+      errors.length === 0,
+      errors.slice(0, 3).join(' | '),
+    );
+  } catch (err) {
+    console.error('\x1b[31mHarness error:\x1b[0m', err);
+    exitCode = 3;
+  } finally {
+    await browser.close();
+  }
+
+  const pass = results.filter((r) => r.ok).length;
+  const fail = results.length - pass;
+  console.log('\n' + '─'.repeat(60));
+  console.log(`  RESULT: ${pass} passed, ${fail} failed`);
+  console.log(`  Shots : ${SHOTS_DIR}/emergency-*.png`);
+  console.log('─'.repeat(60) + '\n');
+  process.exit(exitCode || (fail > 0 ? 1 : 0));
+}
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(3);
+});

scripts/qa-geo-import-large.mjs

@@ -0,0 +1,446 @@
+#!/usr/bin/env node
+/** Large KML acceptance: style equivalence, 27.6 MB import and optional real file.
+ * QA_BASE_URL defaults to http://localhost:4173. Optional --file /path/file.kml.
+ * For a USGS fixture with blocked icons, add --expect-local-pins to check paint.
+ */
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import puppeteer from 'puppeteer';
+import { hookRenderErrors, readRenderErrors } from './qa-browserEvidence.mjs';
+
+const base = process.env.QA_BASE_URL || 'http://localhost:4173';
+const supplied = process.argv.includes('--file')
+  ? path.resolve(process.argv[process.argv.indexOf('--file') + 1])
+  : null;
+const directory = fs.mkdtempSync(path.join(os.tmpdir(), 'gev-large-kml-'));
+const file = path.join(directory, 'metadata-rich-27mb.kml');
+const style =
+  '<Style><IconStyle><scale>0.6</scale><color>ff00dd66</color></IconStyle></Style>';
+const notes = 'A local observation with supporting detail. '.repeat(120);
+const placemarks = Array.from({ length: 5000 }, (_, i) => {
+  const lon = -122.6 + (i % 100) * 0.002;
+  const lat = 37.65 + Math.floor(i / 100) * 0.003;
+  return `<Placemark><name>Point ${i}</name><styleUrl>#base</styleUrl>${style}<description>${notes}</description><Point><coordinates>${lon},${lat},0</coordinates></Point></Placemark>`;
+});
+const wrap = (body) =>
+  `<kml xmlns="http://www.opengis.net/kml/2.2"><Document><Style id="base"><IconStyle><heading>25</heading><scale>1.2</scale></IconStyle><LineStyle><color>ffdd6600</color><width>7</width></LineStyle><PolyStyle><color>6600ddff</color><fill>1</fill><outline>0</outline></PolyStyle></Style>${body}</Document></kml>`;
+const large = wrap(placemarks.join(''));
+fs.writeFileSync(file, large);
+const bytes = fs.statSync(file).size;
+if (bytes < 20 * 1024 * 1024 || bytes > 30 * 1024 * 1024)
+  throw new Error(`Fixture must be 20–30 MiB, got ${bytes} bytes`);
+const small = wrap(
+  Array.from({ length: 6 }, (_, i) => {
+    const kind = i % 3;
+    const geometry =
+      kind === 0
+        ? '<Point><coordinates>-122.49,37.77,0</coordinates></Point>'
+        : kind === 1
+          ? '<LineString><coordinates>-122.50,37.77,0 -122.49,37.77,0</coordinates></LineString>'
+          : '<Polygon><outerBoundaryIs><LinearRing><coordinates>-122.50,37.77,0 -122.49,37.77,0 -122.49,37.78,0 -122.50,37.77,0</coordinates></LinearRing></outerBoundaryIs></Polygon>';
+    const override =
+      kind === 0
+        ? style
+        : kind === 1
+          ? '<Style><LineStyle><width>3</width></LineStyle></Style>'
+          : '<Style><PolyStyle><outline>1</outline></PolyStyle></Style>';
+    return `<Placemark><name>Small ${i}</name><styleUrl>#base</styleUrl>${override}${geometry}</Placemark>`;
+  }).join('') +
+    '<Style id="named-a"><IconStyle><scale>0.8</scale></IconStyle></Style>' +
+    '<Style id="named-b"><IconStyle><scale>0.8</scale></IconStyle></Style>' +
+    '<StyleMap id="paired"><Pair><key>normal</key><Style><IconStyle><scale>0.8</scale></IconStyle></Style></Pair></StyleMap>' +
+    ['named-a', 'named-b', 'paired']
+      .map(
+        (id) =>
+          `<Placemark><name>${id}</name><styleUrl>#${id}</styleUrl><Point><coordinates>-122.49,37.77,0</coordinates></Point></Placemark>`,
+      )
+      .join(''),
+);
+const browser = await puppeteer.launch({
+  headless: true,
+  args:
+    process.platform === 'darwin'
+      ? ['--use-gl=angle', '--use-angle=metal']
+      : ['--no-sandbox', '--use-gl=angle', '--use-angle=swiftshader'],
+});
+const page = await browser.newPage();
+await hookRenderErrors(page);
+const errors = [];
+const fileRequests = [];
+page.on('pageerror', (e) => errors.push(e.message));
+await page.setRequestInterception(true);
+page.on('request', (request) => {
+  if (new URL(request.url()).hostname === 'earthquake.usgs.gov') {
+    fileRequests.push(request.url());
+    void request.abort();
+  } else void request.continue();
+});
+let failures = 0;
+const check = (name, ok, detail) => {
+  console.log(`[${ok ? 'PASS' : 'FAIL'}] ${name}`, detail ?? '');
+  if (!ok) failures++;
+};
+try {
+  await page.setViewport({ width: 1440, height: 900 });
+  await page.goto(`${base}/?welcome=0`, { waitUntil: 'domcontentloaded' });
+  await page.waitForFunction(
+    () =>
+      window.__gevGeoImport &&
+      document.getElementById('loading-screen')?.classList.contains('hidden'),
+    { timeout: 60000 },
+  );
+  await page.evaluate(async () => {
+    const { viewer, dataManager } = window.__godsEyeView;
+    const C = window.__CESIUM__;
+    for (const id of dataManager.layers.keys())
+      await dataManager.setEnabled(id, false);
+    viewer.clock.shouldAnimate = false;
+    viewer.imageryLayers.removeAll();
+    viewer.terrainProvider = new C.EllipsoidTerrainProvider();
+    viewer.camera.cancelFlight();
+    viewer.camera.setView({
+      destination: C.Cartesian3.fromDegrees(-122.5, 37.72, 50000),
+      orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+    });
+    window.__qaStyleSnapshot = (source) => {
+      const now = viewer.clock.currentTime;
+      const images = new Map();
+      const imageValue = (p) => {
+        const value = p?.getValue(now);
+        if (value?.tagName !== 'CANVAS') return value;
+        if (!images.has(value)) images.set(value, value.toDataURL());
+        return images.get(value);
+      };
+      const color = (p) => p?.getValue(now)?.toCssColorString();
+      const positions = (p) => p?.getValue(now)?.map((v) => [v.x, v.y, v.z]);
+      const renderedPins = new Map();
+      const collection = source.importedBillboards;
+      if (collection)
+        for (let i = 0; i < collection.length; i++) {
+          const pin = collection.get(i);
+          renderedPins.set(pin.id, pin);
+        }
+      const actual = (e, key, fallback) => {
+        const pin = renderedPins.get(e);
+        return pin ? pin[key] : (e.billboard?.[key]?.getValue(now) ?? fallback);
+      };
+      return (source.importedEntities || source.entities.values)
+        .map((e) => ({
+          name: e.name,
+          point: renderedPins.get(e)?.position || e.position?.getValue(now),
+          scale: e.billboard ? actual(e, 'scale', 1) : undefined,
+          rotation: e.billboard ? actual(e, 'rotation', 0) : undefined,
+          image: renderedPins.get(e)?.image || imageValue(e.billboard?.image),
+          color: e.billboard
+            ? actual(e, 'color', C.Color.WHITE).toCssColorString()
+            : undefined,
+          width: e.polyline?.width?.getValue(now),
+          lineColor: color(e.polyline?.material?.color),
+          line: positions(e.polyline?.positions),
+          fill: e.polygon?.fill?.getValue(now),
+          outline: e.polygon?.outline?.getValue(now),
+          polygonColor: color(e.polygon?.material?.color),
+          polygon: e.polygon?.hierarchy
+            ?.getValue(now)
+            ?.positions?.map((v) => [v.x, v.y, v.z]),
+        }))
+        .sort((a, b) => a.name.localeCompare(b.name));
+    };
+    window.__qaUnsharedKml = async (text) => {
+      const doc = new DOMParser().parseFromString(text, 'application/xml');
+      for (const el of [...doc.getElementsByTagName('*')])
+        if (
+          ['description', 'ExtendedData', 'BalloonStyle'].includes(el.localName)
+        )
+          el.remove();
+      const source = await C.KmlDataSource.load(doc, {
+        camera: viewer.scene.camera,
+        canvas: viewer.scene.canvas,
+        clampToGround: true,
+      });
+      for (const e of source.importedEntities || source.entities.values)
+        e.label = undefined;
+      return source;
+    };
+  });
+  const equivalent = await page.evaluate(async (text) => {
+    const { viewer } = window.__godsEyeView;
+    const control = await window.__qaUnsharedKml(text);
+    const outcomes = await window.__gevGeoImport.importFiles([
+      new File([text], 'style-equivalence.kml'),
+    ]);
+    const candidate = viewer.dataSources.get(viewer.dataSources.length - 1);
+    const result = {
+      ok: outcomes[0]?.ok,
+      same:
+        JSON.stringify(window.__qaStyleSnapshot(control)) ===
+        JSON.stringify(window.__qaStyleSnapshot(candidate)),
+      entities: (candidate.importedEntities || candidate.entities.values)
+        .length,
+    };
+    await window.__gevGeoImport.remove(outcomes[0]?.id);
+    return result;
+  }, small);
+  check(
+    'shared inline and named styles preserve point, line and polygon overrides/inheritance',
+    equivalent.ok && equivalent.same && equivalent.entities === 9,
+    JSON.stringify(equivalent),
+  );
+
+  // The control bypasses the former style-count refusal solely in this test,
+  // to compare native unshared rendering against normalized rendering.
+  await page.evaluate(async (text) => {
+    const source = await window.__qaUnsharedKml(text);
+    window.__qaUnsharedSnapshot = JSON.stringify(
+      window.__qaStyleSnapshot(source),
+    );
+    window.__qaControl = source;
+    await window.__godsEyeView.viewer.dataSources.add(source);
+  }, large);
+  const measure = async () =>
+    page.evaluate(async () => {
+      const C = window.__CESIUM__,
+        { viewer } = window.__godsEyeView;
+      const scene = viewer.scene;
+      viewer.camera.cancelFlight();
+      viewer.camera.setView({
+        destination: C.Cartesian3.fromDegrees(-122.5, 37.72, 50000),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      const started = performance.now(),
+        samples = [];
+      let last,
+        frames = 0;
+      const remove = scene.postRender.addEventListener(() => {
+        const t = performance.now();
+        if (t - started < 2000) return;
+        frames++;
+        if (last !== undefined) samples.push(t - last);
+        last = t;
+      });
+      await new Promise((resolve) => {
+        let previous = performance.now();
+        function tick(t) {
+          viewer.camera.rotate(
+            C.Cartesian3.UNIT_Z,
+            Math.min(t - previous, 100) * 0.0000002,
+          );
+          previous = t;
+          scene.requestRender();
+          if (t - started < 7000) requestAnimationFrame(tick);
+          else resolve();
+        }
+        requestAnimationFrame(tick);
+      });
+      remove();
+      samples.sort((a, b) => a - b);
+      const gl = scene.context._gl,
+        debug = gl.getExtension('WEBGL_debug_renderer_info');
+      return {
+        fps: frames / 5,
+        p50Ms: samples[Math.floor(samples.length * 0.5)],
+        p95Ms: samples[Math.floor(samples.length * 0.95)],
+        renderer: debug ? gl.getParameter(debug.UNMASKED_RENDERER_WEBGL) : null,
+      };
+    });
+  console.log('UNSHARED CONTROL', JSON.stringify(await measure()));
+  await page.evaluate(() =>
+    window.__godsEyeView.viewer.dataSources.remove(window.__qaControl, true),
+  );
+
+  const loadPicked = async (filename, expected) => {
+    const before = await page.evaluate(
+      () => window.__godsEyeView.viewer.dataSources.length,
+    );
+    const priorIds = await page.evaluate(() =>
+      window.__gevGeoImport.list().map((f) => f.id),
+    );
+    const started = performance.now();
+    await (await page.$('#geo-import-input')).uploadFile(filename);
+    const name = path.basename(filename);
+    const loaded = await page
+      .waitForFunction(
+        ({ name, priorIds }) =>
+          window.__gevGeoImport.list().some((f) => !priorIds.includes(f.id)) ||
+          document
+            .getElementById('geo-import-hint')
+            .textContent.startsWith(`${name}:`),
+        { timeout: 120000 },
+        { name, priorIds },
+      )
+      .then(
+        () => true,
+        () => false,
+      );
+    const state = await page.evaluate(() => ({
+      files: window.__gevGeoImport.list(),
+      hint: document.getElementById('geo-import-hint').textContent,
+      sources: window.__godsEyeView.viewer.dataSources.length,
+    }));
+    const item = state.files.find((f) => !priorIds.includes(f.id));
+    check(
+      `picked ${name} loads`,
+      loaded &&
+        (expected === null
+          ? item?.entityCount > 0
+          : item?.entityCount === expected) &&
+        state.sources === before + 1,
+      JSON.stringify({
+        bytes: fs.statSync(filename).size,
+        loadMs: Math.round(performance.now() - started),
+        ...state,
+      }),
+    );
+    return item;
+  };
+  const item = await loadPicked(file, 5000);
+  if (item) {
+    const same = await page.evaluate(() => {
+      const viewer = window.__godsEyeView.viewer;
+      const source = viewer.dataSources.get(viewer.dataSources.length - 1);
+      return (
+        JSON.stringify(window.__qaStyleSnapshot(source)) ===
+        window.__qaUnsharedSnapshot
+      );
+    });
+    check('all 5,000 normalized graphics match their unshared control', same);
+    console.log('NORMALIZED CANDIDATE', JSON.stringify(await measure()));
+    await page.evaluate((id) => window.__gevGeoImport.remove(id), item.id);
+  }
+  if (supplied) {
+    const clockBefore = await page.evaluate(() => {
+      const v = window.__godsEyeView.viewer,
+        C = window.__CESIUM__;
+      return [
+        C.JulianDate.toIso8601(v.clock.startTime),
+        C.JulianDate.toIso8601(v.clock.stopTime),
+        C.JulianDate.toIso8601(v.clock.currentTime),
+        v.clock.multiplier,
+      ];
+    });
+    const suppliedItem = await loadPicked(supplied, null);
+    const clockAfter = await page.evaluate(() => {
+      const v = window.__godsEyeView.viewer,
+        C = window.__CESIUM__;
+      return [
+        C.JulianDate.toIso8601(v.clock.startTime),
+        C.JulianDate.toIso8601(v.clock.stopTime),
+        C.JulianDate.toIso8601(v.clock.currentTime),
+        v.clock.multiplier,
+      ];
+    });
+    check(
+      'real dated KML leaves the shared clock unchanged',
+      JSON.stringify(clockBefore) === JSON.stringify(clockAfter),
+    );
+    if (suppliedItem && process.argv.includes('--expect-local-pins')) {
+      const markers = await page.evaluate(() => {
+        const { viewer } = window.__godsEyeView,
+          C = window.__CESIUM__;
+        const source = viewer.dataSources.get(viewer.dataSources.length - 1);
+        const points = (
+          source.importedEntities || source.entities.values
+        ).filter((e) => e.position && e.billboard);
+        const images = points.filter((e) =>
+          e.billboard.image?.getValue(viewer.clock.currentTime),
+        );
+        if (images.length) {
+          const at = C.Cartographic.fromCartesian(
+            images[0].position.getValue(viewer.clock.currentTime),
+          );
+          viewer.camera.cancelFlight();
+          viewer.camera.setView({
+            destination: C.Cartesian3.fromRadians(
+              at.longitude,
+              at.latitude,
+              100000,
+            ),
+            orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+          });
+        }
+        return { points: points.length, images: images.length };
+      });
+      check(
+        'supplied point markers have drawable images',
+        markers.points > 0 && markers.images === markers.points,
+        JSON.stringify(markers),
+      );
+      if (markers.points) {
+        const yellowPixels = async () => {
+          const shot = await page.screenshot({
+            clip: { x: 620, y: 350, width: 200, height: 200 },
+            type: 'png',
+            encoding: 'base64',
+          });
+          return page.evaluate(async (base64) => {
+            const bitmap = await createImageBitmap(
+              await (await fetch(`data:image/png;base64,${base64}`)).blob(),
+            );
+            const canvas = new OffscreenCanvas(bitmap.width, bitmap.height),
+              context = canvas.getContext('2d');
+            context.drawImage(bitmap, 0, 0);
+            const data = context.getImageData(
+              0,
+              0,
+              bitmap.width,
+              bitmap.height,
+            ).data;
+            let count = 0;
+            for (let i = 0; i < data.length; i += 4)
+              if (data[i] > 150 && data[i + 1] > 150 && data[i + 2] < 100)
+                count++;
+            return count;
+          }, shot);
+        };
+        const setVisible = (visible) =>
+          page.evaluate(
+            ({ id, visible }) => window.__gevGeoImport.setVisible(id, visible),
+            { id: suppliedItem.id, visible },
+          );
+        await setVisible(false);
+        await new Promise((resolve) => setTimeout(resolve, 1000));
+        const hidden = await yellowPixels();
+        await setVisible(true);
+        let shown = hidden;
+        const deadline = performance.now() + 10000;
+        while (performance.now() < deadline && shown <= hidden + 10) {
+          await new Promise((resolve) => setTimeout(resolve, 500));
+          shown = await yellowPixels();
+        }
+        check(
+          'real USGS markers paint when shown and disappear when hidden',
+          shown > hidden + 10,
+          JSON.stringify({ hidden, shown }),
+        );
+        await page.screenshot({
+          path: path.join(directory, 'real-kml-visible.png'),
+        });
+      }
+    }
+    if (suppliedItem)
+      await page.evaluate(
+        (id) => window.__gevGeoImport.remove(id),
+        suppliedItem.id,
+      );
+  }
+  check(
+    'file-directed USGS icon/metadata requests never leave the page',
+    fileRequests.length === 0,
+    fileRequests.length,
+  );
+  errors.push(...(await readRenderErrors(page)));
+  check(
+    'no uncaught page or render errors',
+    errors.length === 0,
+    JSON.stringify(errors),
+  );
+  check(
+    'all imported sources are removed',
+    await page.evaluate(() => window.__gevGeoImport.list().length === 0),
+  );
+  console.log('Fixture retained at', file);
+} finally {
+  await browser.close();
+}
+process.exitCode = failures ? 1 : 0;

scripts/qa-geo-import-regressions.mjs

@@ -0,0 +1,564 @@
+#!/usr/bin/env node
+/** Import regressions through the real UI controller and Cesium loaders.
+ * Run against dev and preview: QA_BASE_URL=http://localhost:4173 node scripts/qa-geo-import-regressions.mjs
+ */
+import puppeteer from 'puppeteer';
+import * as Cesium from 'cesium';
+import { hookRenderErrors, readRenderErrors } from './qa-browserEvidence.mjs';
+
+const browser = await puppeteer.launch({ headless: true });
+const page = await browser.newPage();
+const meshBytes = Buffer.alloc(60);
+[
+  -2000, 2000, -2000, 2000, 2000, -2000, -2000, 2000, 2000, 2000, 2000, 2000,
+].forEach((value, i) => meshBytes.writeFloatLE(value, i * 4));
+[0, 1, 2, 2, 1, 3].forEach((value, i) =>
+  meshBytes.writeUInt16LE(value, 48 + i * 2),
+);
+const fixture = {
+  '/__qa_import_surface/tileset.json': {
+    asset: { version: '1.1' },
+    geometricError: 0,
+    root: {
+      transform: Cesium.Matrix4.toArray(
+        Cesium.Transforms.eastNorthUpToFixedFrame(
+          Cesium.Cartesian3.fromDegrees(-122.5, 37.7),
+        ),
+      ),
+      boundingVolume: { box: [0, 0, 2000, 2000, 0, 0, 0, 2000, 0, 0, 0, 100] },
+      geometricError: 0,
+      content: { uri: 'surface.gltf' },
+    },
+  },
+  '/__qa_import_surface/surface.gltf': {
+    asset: { version: '2.0' },
+    scene: 0,
+    scenes: [{ nodes: [0] }],
+    nodes: [{ mesh: 0 }],
+    meshes: [
+      {
+        primitives: [{ attributes: { POSITION: 0 }, indices: 1, material: 0 }],
+      },
+    ],
+    materials: [{ doubleSided: true }],
+    buffers: [
+      {
+        byteLength: 60,
+        uri: `data:application/octet-stream;base64,${meshBytes.toString('base64')}`,
+      },
+    ],
+    bufferViews: [
+      { buffer: 0, byteOffset: 0, byteLength: 48, target: 34962 },
+      { buffer: 0, byteOffset: 48, byteLength: 12, target: 34963 },
+    ],
+    accessors: [
+      {
+        bufferView: 0,
+        componentType: 5126,
+        count: 4,
+        type: 'VEC3',
+        min: [-2000, 2000, -2000],
+        max: [2000, 2000, 2000],
+      },
+      { bufferView: 1, componentType: 5123, count: 6, type: 'SCALAR' },
+    ],
+  },
+};
+await page.setRequestInterception(true);
+page.on('request', (request) => {
+  const body = fixture[new URL(request.url()).pathname];
+  if (body)
+    void request.respond({
+      status: 200,
+      contentType: 'application/json',
+      body: JSON.stringify(body),
+    });
+  else void request.continue();
+});
+const errors = [],
+  requests = [];
+page.on('pageerror', (e) => errors.push(e.message));
+page.on('console', (m) => {
+  if (/Ignoring clampToGround/.test(m.text())) errors.push(m.text());
+});
+await hookRenderErrors(page);
+let failed = 0;
+try {
+  await page.setViewport({ width: 390, height: 844 });
+  await page.goto(
+    `${process.env.QA_BASE_URL || 'http://localhost:4173'}/?welcome=0`,
+    { waitUntil: 'domcontentloaded' },
+  );
+  await page.waitForFunction(
+    () =>
+      window.__gevGeoImport &&
+      document.getElementById('loading-screen')?.classList.contains('hidden'),
+    { timeout: 90000 },
+  );
+  await page.evaluate(async () => {
+    const { viewer, dataManager } = window.__godsEyeView,
+      C = window.__CESIUM__;
+    for (const id of dataManager.layers.keys())
+      await dataManager.setEnabled(id, false);
+    viewer.imageryLayers.removeAll();
+    viewer.terrainProvider = new C.EllipsoidTerrainProvider();
+    viewer.clock.shouldAnimate = false;
+    viewer.camera.cancelFlight();
+    viewer.camera.setView({
+      destination: C.Cartesian3.fromDegrees(-122.5, 37.7, 100000),
+      orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+    });
+  });
+  page.on('request', (r) => {
+    if (!/^(data:|blob:)/.test(r.url())) requests.push(r.url());
+  });
+  const results = await page.evaluate(async () => {
+    const { viewer } = window.__godsEyeView,
+      C = window.__CESIUM__,
+      tool = window.__gevGeoImport;
+    const results = [],
+      now = C.JulianDate.clone(viewer.clock.currentTime);
+    const check = (name, pass, detail = '') =>
+      results.push({ name, pass: Boolean(pass), detail });
+    const wrap = (body, attrs = '') =>
+      `<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" ${attrs}><Document>${body}</Document></kml>`;
+    const point = '<Point><coordinates>-122.5,37.7,0</coordinates></Point>';
+    const load = async (value, name) => {
+      const content =
+        typeof value === 'object' && !ArrayBuffer.isView(value)
+          ? JSON.stringify(value)
+          : value;
+      const [outcome] = await tool.importFiles([new File([content], name)]);
+      return {
+        outcome,
+        source: outcome.ok
+          ? viewer.dataSources.get(viewer.dataSources.length - 1)
+          : null,
+      };
+    };
+    const remove = (r) => {
+      if (r.outcome.ok) tool.remove(r.outcome.id);
+    };
+    let r = await load(
+      {
+        type: 'FeatureCollection',
+        features: [
+          {
+            type: 'Feature',
+            id: 'kartaview-owned',
+            properties: {
+              name: 'XYZ',
+              addProperty: 1,
+              'marker-symbol': 'rail',
+            },
+            geometry: { type: 'Point', coordinates: [-122.5, 37.7, 100] },
+          },
+          {
+            type: 'Feature',
+            geometry: {
+              type: 'Polygon',
+              coordinates: [
+                [
+                  [-122.5, 37.7, 10],
+                  [-122.4, 37.7, 10],
+                  [-122.4, 37.8, 10],
+                  [-122.5, 37.7, 10],
+                ],
+              ],
+            },
+          },
+        ],
+      },
+      'xyz.geojson',
+    );
+    const pin = (r.source?.importedEntities || r.source?.entities.values).find(
+        (e) => e.billboard,
+      ),
+      polygon = (r.source?.importedEntities || r.source?.entities.values).find(
+        (e) => e.polygon,
+      );
+    check(
+      'XYZ ground footprint and isolated entity IDs',
+      r.outcome.ok &&
+        pin.id !== 'kartaview-owned' &&
+        Math.abs(
+          C.Cartographic.fromCartesian(pin.position.getValue(now)).height,
+        ) < 0.01 &&
+        polygon.polygon.perPositionHeight?.getValue(now) !== true,
+    );
+    check(
+      'ground pins have no persistent clamping callbacks',
+      pin?.billboard.heightReference?.getValue(now) ===
+        C.HeightReference.NONE &&
+        pin.billboard.disableDepthTestDistance.getValue(now) === Infinity,
+    );
+    remove(r);
+    r = await load(
+      wrap(
+        '<Placemark><name>ground</name><gx:Track><gx:coord>-122.5 37.7 0</gx:coord><gx:coord>-122.4 37.8 0</gx:coord></gx:Track></Placemark>' +
+          '<Placemark><name>absolute</name><gx:Track><altitudeMode>absolute</altitudeMode><gx:coord>-122.5 37.7 10000</gx:coord><gx:coord>-122.4 37.8 10000</gx:coord></gx:Track></Placemark>' +
+          '<Placemark><name>line</name><LineString><coordinates>-122.5,37.7 -122.4,37.8</coordinates></LineString></Placemark>',
+      ),
+      'tracks.kml',
+    );
+    const find = (name) =>
+      (r.source?.importedEntities || r.source?.entities.values).find(
+        (e) => e.name === name,
+      );
+    check(
+      'ground tracks and untessellated authored lines clamp',
+      find('ground')?.polyline.clampToGround?.getValue(now) &&
+        find('line')?.polyline.clampToGround?.getValue(now),
+    );
+    check(
+      'explicit track altitude and original vertices survive',
+      find('absolute')?.polyline.positions.getValue(now).length === 2 &&
+        find('absolute')
+          .polyline.positions.getValue(now)
+          .every(
+            (p) =>
+              Math.abs(C.Cartographic.fromCartesian(p).height - 10000) < 0.01,
+          ),
+    );
+    remove(r);
+    r = await load(
+      wrap(
+        `<Style id="s"><IconStyle><scale>0.5</scale></IconStyle></Style><Placemark><styleUrl>  #s  </styleUrl>${point}</Placemark>`,
+      ),
+      'local-style.kml',
+    );
+    check('whitespace around a local style remains local', r.outcome.ok);
+    remove(r);
+    r = await load(
+      wrap(
+        `<Placemark><StyleMap><Pair><key>normal</key><styleUrl>https://gev-qa-trap.invalid/style</styleUrl></Pair></StyleMap>${point}</Placemark>`,
+      ),
+      'incomplete-style.kml',
+    );
+    check('removing external style does not hang the queue', r.outcome.ok);
+    remove(r);
+    r = await load(
+      wrap(
+        `<Folder><visibility>0</visibility><Placemark>${point}</Placemark></Folder>`,
+      ),
+      'hidden-folder.kml',
+    );
+    check(
+      'import show controls own previously hidden KML content',
+      r.outcome.ok &&
+        (r.source.importedEntities || r.source.entities.values).every(
+          (e) => e.isShowing,
+        ),
+    );
+    remove(r);
+    r = await load(
+      wrap(
+        '<GroundOverlay><color>ff00ff00</color><LatLonBox><north>37.8</north><south>37.7</south><east>-122.4</east><west>-122.5</west></LatLonBox></GroundOverlay>',
+      ),
+      'colored.kml',
+    );
+    check(
+      'a colored overlay without an icon is drawable',
+      r.outcome.ok &&
+        (r.source.importedEntities || r.source.entities.values).some(
+          (e) => e.rectangle,
+        ),
+    );
+    remove(r);
+    const xml = wrap(`<Placemark>${point}</Placemark>`);
+    const utf16 = new Uint8Array(2 + xml.length * 2);
+    utf16.set([255, 254]);
+    for (let i = 0; i < xml.length; i++) {
+      utf16[2 + i * 2] = xml.charCodeAt(i) & 255;
+      utf16[3 + i * 2] = xml.charCodeAt(i) >> 8;
+    }
+    r = await load(utf16, 'utf16.kml');
+    check('UTF-16 BOM is decoded', r.outcome.ok);
+    remove(r);
+    r = await load(
+      wrap(
+        `<Placemark>${point}</Placemark>`,
+        'xmlns:gx="http://www.google.com/kml/ext/2.2" xsi:schemaLocation="test"',
+      ),
+      'namespaces.kml',
+    );
+    check(
+      'ordinary duplicate and missing export namespaces are repaired',
+      r.outcome.ok,
+    );
+    remove(r);
+    for (const [name, value] of [
+      ['null geometry', { type: 'Feature', geometry: null }],
+      ['invalid coordinates', { type: 'Point', coordinates: ['bad', 37] }],
+      [
+        'missing feature type',
+        {
+          type: 'FeatureCollection',
+          features: [{ geometry: { type: 'Point', coordinates: [0, 0] } }],
+        },
+      ],
+      [
+        'nested unsupported geometry',
+        { type: 'Feature', geometry: { type: 'Topology', arcs: [] } },
+      ],
+    ]) {
+      r = await load(value, 'refused.geojson');
+      check(`${name} is refused without stopping rendering`, !r.outcome.ok);
+      remove(r);
+    }
+    r = await load(
+      wrap(
+        '<Placemark><Point><coordinates>NaN,37,0</coordinates></Point></Placemark>',
+      ),
+      'invalid.kml',
+    );
+    check('non-finite KML coordinates are refused', !r.outcome.ok);
+    remove(r);
+    r = await load(
+      {
+        type: 'LineString',
+        coordinates: [
+          [-122.6, 37.7],
+          [-122.4, 37.7],
+        ],
+      },
+      'portrait.geojson',
+    );
+    await new Promise((resolve) => setTimeout(resolve, 2300));
+    const positions = (r.source?.importedEntities ||
+      r.source?.entities.values)[0].polyline.positions.getValue(now);
+    const screen = positions?.map((p) =>
+      C.SceneTransforms.worldToWindowCoordinates(viewer.scene, p),
+    );
+    check(
+      'portrait flight includes both route endpoints',
+      screen?.every(
+        (p) => p && p.x > 0 && p.x < innerWidth && p.y > 0 && p.y < innerHeight,
+      ),
+      screen?.map((p) => p && [p.x, p.y]),
+    );
+    remove(r);
+    r = await load(
+      {
+        type: 'MultiPoint',
+        coordinates: [
+          [-74, 40.7],
+          [139.7, 35.7],
+        ],
+      },
+      'intercontinental.geojson',
+    );
+    await new Promise((resolve) => setTimeout(resolve, 2300));
+    const intercontinental = (
+      r.source?.importedEntities || r.source?.entities.values
+    )
+      .filter((e) => e.position)
+      .map((e) => e.position.getValue(now));
+    const occluder = new C.EllipsoidalOccluder(
+      C.Ellipsoid.WGS84,
+      viewer.camera.positionWC,
+    );
+    check(
+      'intercontinental points remain in frame and in front of the horizon',
+      intercontinental?.every((p) => {
+        const s = C.SceneTransforms.worldToWindowCoordinates(viewer.scene, p);
+        return (
+          occluder.isPointVisible(p) &&
+          s &&
+          s.x > 0 &&
+          s.x < innerWidth &&
+          s.y > 0 &&
+          s.y < innerHeight
+        );
+      }),
+    );
+    remove(r);
+    r = await load(
+      wrap(
+        '<Placemark><LineString><altitudeMode>absolute</altitudeMode><extrude>1</extrude><coordinates>4.9,52.37,3000 5.12,52.09,3000</coordinates></LineString></Placemark><Placemark><Point><coordinates>5.12,52.09</coordinates></Point></Placemark>',
+      ),
+      'wall.kml',
+    );
+    await new Promise((resolve) => setTimeout(resolve, 2300));
+    check(
+      'a wall contributes both endpoints to the flight',
+      r.outcome.ok &&
+        (r.source.importedEntities || r.source.entities.values)
+          .find((e) => e.wall)
+          ?.wall.positions.getValue(now)
+          .every((p) => {
+            const s = C.SceneTransforms.worldToWindowCoordinates(
+              viewer.scene,
+              p,
+            );
+            return (
+              s && s.x > 0 && s.x < innerWidth && s.y > 0 && s.y < innerHeight
+            );
+          }),
+    );
+    remove(r);
+    r = await load(
+      {
+        type: 'MultiPoint',
+        coordinates: [
+          [0, 0],
+          [180, 0],
+        ],
+      },
+      'antipodal.geojson',
+    );
+    await new Promise((resolve) => setTimeout(resolve, 1800));
+    check(
+      'symmetric global extents keep a finite camera',
+      r.outcome.ok &&
+        Number.isFinite(viewer.camera.positionCartographic.height),
+    );
+    remove(r);
+    viewer.camera.cancelFlight();
+    viewer.camera.setView({
+      destination: C.Cartesian3.fromDegrees(-122.5, 37.7, 100000),
+      orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+    });
+    const mesh = await C.Cesium3DTileset.fromUrl(
+      `${location.origin}/__qa_import_surface/tileset.json`,
+    );
+    viewer.scene.primitives.add(mesh);
+    // This fixture installs a mesh outside the app's map-source lifecycle.
+    // Let the new camera/tiles reach a rendered frame before testing sampling.
+    await new Promise((resolve) => {
+      let frames = 0;
+      const remove = viewer.scene.postRender.addEventListener(() => {
+        if (++frames >= 2) {
+          remove();
+          resolve();
+        } else viewer.scene.requestRender();
+      });
+      viewer.scene.requestRender();
+    });
+    const fixtureDeadline = performance.now() + 5000;
+    while (!mesh.tilesLoaded && performance.now() < fixtureDeadline) {
+      viewer.scene.requestRender();
+      await new Promise((resolve) => setTimeout(resolve, 50));
+    }
+    const globeShown = viewer.scene.globe.show;
+    viewer.scene.globe.show = false;
+
+    r = await load(
+      { type: 'Point', coordinates: [-122.5, 37.7, 0] },
+      'mesh-point.geojson',
+    );
+    const meshPoint = (r.source?.importedEntities || r.source?.entities.values)
+      .find((e) => e.billboard)
+      ?.position.getValue(now);
+    const meshHeight =
+      meshPoint && C.Cartographic.fromCartesian(meshPoint).height;
+    check(
+      'native 3D Tiles ground sampling keeps pins on the rendered mesh',
+      r.outcome.ok && Math.abs(meshHeight - 2000) < 2,
+      {
+        meshHeight,
+        tilesLoaded: mesh.tilesLoaded,
+        globeShown: viewer.scene.globe.show,
+      },
+    );
+    tool.flyTo(r.outcome.id);
+    await new Promise((resolve) => setTimeout(resolve, 2300));
+    const meshScreen =
+      meshPoint &&
+      C.SceneTransforms.worldToWindowCoordinates(viewer.scene, meshPoint);
+    check(
+      'a high-surface arrival frames the elevated pin',
+      meshScreen &&
+        Math.abs(meshScreen.x - innerWidth / 2) < 20 &&
+        Math.abs(meshScreen.y - innerHeight / 2) < 20,
+      {
+        screen: meshScreen && [meshScreen.x, meshScreen.y],
+        camera: {
+          height: viewer.camera.positionCartographic.height,
+          pitch: viewer.camera.pitch,
+        },
+        meshHeight,
+      },
+    );
+    const groundSource = r.source;
+    const elevated = await load(
+      wrap(
+        '<Placemark><Point><altitudeMode>absolute</altitudeMode><coordinates>-122.5,37.7,5000</coordinates></Point></Placemark>',
+      ),
+      'elevated-pin.kml',
+    );
+    await new Promise((resolve) => setTimeout(resolve, 2600));
+    check(
+      'a higher imported pin never becomes the sampled ground',
+      elevated.outcome.ok &&
+        Math.abs(
+          C.Cartographic.fromCartesian(
+            groundSource.importedBillboards.get(0).position,
+          ).height - 2000,
+        ) < 2,
+    );
+    remove(elevated);
+    remove(r);
+    viewer.scene.primitives.remove(mesh);
+    viewer.scene.globe.show = globeShown;
+    const before = tool.list().length;
+    const transfer = new DataTransfer();
+    transfer.items.add(
+      new File(
+        [JSON.stringify({ type: 'Point', coordinates: [-122.5, 37.7] })],
+        'panel-drop.geojson',
+      ),
+    );
+    const event = new DragEvent('drop', {
+      bubbles: true,
+      cancelable: true,
+      dataTransfer: transfer,
+    });
+    document.getElementById('geo-import-button').dispatchEvent(event);
+    for (let i = 0; i < 100 && tool.list().length === before; i++)
+      await new Promise((resolve) => setTimeout(resolve, 20));
+    check(
+      'a panel drop imports and prevents the browser default',
+      event.defaultPrevented && tool.list().length === before + 1,
+    );
+    for (const file of tool.list()) tool.remove(file.id);
+    check(
+      'the shared clock stays exactly unchanged',
+      C.JulianDate.equals(now, viewer.clock.currentTime),
+    );
+    check('no file sources remain', tool.list().length === 0);
+    return results;
+  });
+  for (const r of results) {
+    console.log(
+      `[${r.pass ? 'PASS' : 'FAIL'}] ${r.name}`,
+      JSON.stringify(r.detail),
+    );
+    if (!r.pass) failed++;
+  }
+  const renderErrors = await readRenderErrors(page);
+  if (errors.length || renderErrors.length) {
+    failed++;
+    console.log(
+      '[FAIL] browser/render errors',
+      JSON.stringify({ errors, renderErrors }),
+    );
+  }
+  // Terrain belongs to the base map; imported files may sample that provider.
+  const unexpected = requests.filter(
+    (url) =>
+      new URL(url).pathname !== '/logo.svg' &&
+      !new URL(url).pathname.startsWith('/__qa_import_surface/') &&
+      !/\/api\/|\.terrain(?:\?|$)|reearth|cesium|arcgis|openstreetmap|\.pbf(?:\?|$)/i.test(
+        url,
+      ),
+  );
+  console.log(
+    `[${unexpected.length ? 'FAIL' : 'PASS'}] no unexpected file-directed requests`,
+    JSON.stringify(unexpected),
+  );
+  if (unexpected.length) failed++;
+} finally {
+  await browser.close();
+}
+process.exitCode = failed ? 1 : 0;

scripts/qa-geo-import.mjs

@@ -0,0 +1,594 @@
+#!/usr/bin/env node
+/**
+ * Rendered acceptance for DISPLAY ▸ Import: real files through the real file
+ * input and a real drop, parsed by Cesium in the page.
+ *
+ * Proves: GeoJSON, KML, KMZ (with a packed icon and ground overlay) and GPX
+ * each become one row and one data source; the imported shape actually paints
+ * on the globe in its row's color (a GeoJSON `stroke`/`fill` does not override
+ * it) and stops painting when hidden; no import makes the page request
+ * anything named in it (network link, remote icon, remote style, palette
+ * icon, balloon or extended-data HTML, maki marker) or anything outside the
+ * page for it; no entity keeps a description, label or properties; dated KML
+ * and GPX leave the app's clock alone and still draw now; a GPX track keeps
+ * its two segments apart; keyboard focus survives hide/show; a dropped file
+ * imports like a picked one; a file that is not geodata is refused with a
+ * reason and leaves nothing behind; Remove gives every data source back; no
+ * page errors.
+ *
+ * Usage: dev server up (`npm run dev`), then `node scripts/qa-geo-import.mjs`.
+ * QA_BASE_URL (default http://localhost:4173), QA_SHOT_DIR, QA_HEADFUL=1.
+ */
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import puppeteer from 'puppeteer';
+import { hookRenderErrors, readRenderErrors } from './qa-browserEvidence.mjs';
+
+const BASE_URL = process.env.QA_BASE_URL || 'http://localhost:4173';
+const SHOT_DIR = process.env.QA_SHOT_DIR || 'qa-shots/geo-import';
+const HEADFUL = process.env.QA_HEADFUL === '1';
+// Golden Gate Park: a big, flat, green rectangle the test polygon can cover.
+const VIEW = { lon: -122.4862, lat: 37.7694, height: 4200, pitch: -88 };
+const TRAP_HOST = 'gev-qa-trap.invalid';
+
+/* ── fixtures ──────────────────────────────────────────────────────────── */
+
+const ring = [
+  [-122.511, 37.7645],
+  [-122.4545, 37.7645],
+  [-122.4545, 37.7745],
+  [-122.511, 37.7745],
+  [-122.511, 37.7645],
+];
+const geojson = JSON.stringify({
+  type: 'FeatureCollection',
+  features: [
+    {
+      type: 'Feature',
+      // A file's own simplestyle and HTML must not survive the import.
+      properties: {
+        name: 'QA park',
+        stroke: '#ff0000',
+        fill: '#ff0000',
+        'fill-opacity': 1,
+        description: `<img src="https://${TRAP_HOST}/props.png">`,
+      },
+      geometry: { type: 'Polygon', coordinates: [ring.map((p) => [...p, 0])] },
+    },
+    {
+      type: 'Feature',
+      properties: { name: 'QA pin', 'marker-symbol': 'rail' },
+      geometry: { type: 'Point', coordinates: [-122.4862, 37.7694, 0] },
+    },
+  ],
+});
+const kml = (iconHref) => `<?xml version="1.0" encoding="UTF-8"?>
+<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2">
+<Document>
+  <Style id="s"><IconStyle><Icon><href>${iconHref}</href></Icon></IconStyle></Style>
+  <Style id="palette"><IconStyle><Icon><href>root://icons/palette-4.png</href><gx:x>32</gx:x><gx:y>64</gx:y></Icon></IconStyle></Style>
+  <NetworkLink><Link><href>https://${TRAP_HOST}/link.kml</href></Link></NetworkLink>
+  <Placemark><name>QA KML pin</name><styleUrl>#s</styleUrl>
+    <description><![CDATA[<img src="https://${TRAP_HOST}/balloon.png">]]></description>
+    <TimeSpan><begin>2019-01-01T00:00:00Z</begin><end>2019-01-02T00:00:00Z</end></TimeSpan>
+    <ExtendedData><Data name="note"><value><![CDATA[<iframe src="https://${TRAP_HOST}/extended.html"></iframe>]]></value></Data></ExtendedData>
+    <Point><coordinates>-122.47,37.77,0</coordinates></Point></Placemark>
+  <Placemark><name>QA palette pin</name><styleUrl>#palette</styleUrl>
+    <Point><coordinates>-122.48,37.771,0</coordinates></Point></Placemark>
+  <Placemark><name>QA moving</name>
+    <gx:Track><when>2019-01-01T00:00:00Z</when><when>2019-01-01T01:00:00Z</when>
+      <gx:coord>-122.49 37.767 0</gx:coord><gx:coord>-122.475 37.772 0</gx:coord></gx:Track></Placemark>
+  <Placemark><name>QA split tracks</name><gx:MultiTrack>
+    <gx:Track><gx:coord>-122.50 37.767 0</gx:coord><gx:coord>-122.49 37.768 0</gx:coord></gx:Track>
+    <gx:Track><gx:coord>-122.47 37.771 0</gx:coord><gx:coord>-122.46 37.772 0</gx:coord></gx:Track>
+  </gx:MultiTrack></Placemark>
+  <Placemark><name>QA remote style</name><styleUrl>https://${TRAP_HOST}/styles.kml#x</styleUrl>
+    <LineString><coordinates>-122.50,37.766 -122.46,37.772</coordinates></LineString></Placemark>
+  <GroundOverlay><Icon><href>https://${TRAP_HOST}/overlay.png</href></Icon>
+    <LatLonBox><north>37.77</north><south>37.76</south><east>-122.46</east><west>-122.47</west></LatLonBox></GroundOverlay>
+</Document>
+</kml>`;
+const gpx = `<?xml version="1.0" encoding="UTF-8"?>
+<gpx version="1.1" creator="qa" xmlns="http://www.topografix.com/GPX/1/1">
+  <wpt lat="37.769" lon="-122.49"><name>QA waypoint</name></wpt>
+  <trk><name>QA track</name><desc>&lt;img src="https://${TRAP_HOST}/gpx.png"&gt;</desc><trkseg>
+    <trkpt lat="37.766" lon="-122.505"><time>2018-06-01T10:00:00Z</time></trkpt><trkpt lat="37.768" lon="-122.49"><time>2018-06-01T10:05:00Z</time></trkpt>
+  </trkseg><trkseg>
+    <trkpt lat="37.770" lon="-122.48"><time>2018-06-01T11:00:00Z</time></trkpt><trkpt lat="37.772" lon="-122.47"><time>2018-06-01T11:05:00Z</time></trkpt>
+  </trkseg></trk>
+</gpx>`;
+// 1×1 PNG.
+const PNG = Buffer.from(
+  'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8DwHwAFBQIAX8jx0gAAAABJRU5ErkJggg==',
+  'base64',
+);
+/** Stored (uncompressed) zip — enough for a KMZ fixture. */
+function storedZip(files) {
+  const parts = [];
+  const central = [];
+  let offset = 0;
+  for (const [name, data] of files) {
+    const n = Buffer.from(name);
+    const local = Buffer.alloc(30);
+    local.writeUInt32LE(0x04034b50, 0);
+    local.writeUInt32LE(data.length, 18);
+    local.writeUInt32LE(data.length, 22);
+    local.writeUInt16LE(n.length, 26);
+    const c = Buffer.alloc(46);
+    c.writeUInt32LE(0x02014b50, 0);
+    c.writeUInt32LE(data.length, 20);
+    c.writeUInt32LE(data.length, 24);
+    c.writeUInt16LE(n.length, 28);
+    c.writeUInt32LE(offset, 42);
+    parts.push(local, n, data);
+    central.push(c, n);
+    offset += 30 + n.length + data.length;
+  }
+  const dir = Buffer.concat(central);
+  const end = Buffer.alloc(22);
+  end.writeUInt32LE(0x06054b50, 0);
+  end.writeUInt16LE(files.length, 8);
+  end.writeUInt16LE(files.length, 10);
+  end.writeUInt32LE(dir.length, 12);
+  end.writeUInt32LE(offset, 16);
+  return Buffer.concat([...parts, dir, end]);
+}
+const kmzDoc = kml('files/pin.png').replace(
+  `<href>https://${TRAP_HOST}/overlay.png</href>`,
+  '<href>files/overlay.png</href>',
+);
+
+const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'gev-qa-geo-import-'));
+const fixture = (name, data) => {
+  const file = path.join(dir, name);
+  fs.writeFileSync(file, data);
+  return file;
+};
+const FILES = [
+  fixture('park.geojson', geojson),
+  fixture('remote-bits.kml', kml(`https://${TRAP_HOST}/icon.png`)),
+  fixture(
+    'packed.kmz',
+    storedZip([
+      ['doc.kml', Buffer.from(kmzDoc)],
+      ['files/pin.png', PNG],
+      ['files/overlay.png', PNG],
+    ]),
+  ),
+  fixture('walk.gpx', gpx),
+];
+
+/* ── harness ───────────────────────────────────────────────────────────── */
+
+const browser = await puppeteer.launch({
+  headless: !HEADFUL,
+  args: [
+    '--no-sandbox',
+    '--disable-background-timer-throttling',
+    '--disable-renderer-backgrounding',
+    ...(process.platform === 'darwin'
+      ? ['--use-angle=metal', '--enable-gpu']
+      : ['--use-gl=angle', '--use-angle=swiftshader']),
+  ],
+});
+const page = await browser.newPage();
+await hookRenderErrors(page);
+const errors = [];
+const trapped = [];
+page.on('pageerror', (error) => errors.push(`pageerror: ${error.message}`));
+page.on('console', (message) => {
+  if (/Ignoring clampToGround/.test(message.text()))
+    errors.push(message.text());
+});
+// Anything a file names, and the icon assets Cesium would load on a file's
+// behalf (KML palette icons from maps.google.com, GeoJSON maki markers).
+const FILE_FETCH = [TRAP_HOST, 'maps.google.com/mapfiles', '/maki/'];
+page.on('request', (request) => {
+  if (FILE_FETCH.some((needle) => request.url().includes(needle)))
+    trapped.push(request.url());
+});
+let failures = 0;
+function check(name, passed, detail = '') {
+  console.log(
+    `[${passed ? 'PASS' : 'FAIL'}] ${name}${detail ? ` — ${detail}` : ''}`,
+  );
+  if (!passed) failures++;
+}
+fs.mkdirSync(SHOT_DIR, { recursive: true });
+const shot = (name) =>
+  page.screenshot({
+    path: path.join(SHOT_DIR, `${name}.jpg`),
+    type: 'jpeg',
+    quality: 82,
+  });
+const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
+const CLIP = { x: 380, y: 240, width: 480, height: 320 };
+
+/** Pixels in the clip close to the first import color (#39d0ff). */
+async function cyanPixels() {
+  await page.evaluate(() => window.__godsEyeView.viewer.scene.requestRender());
+  await wait(600);
+  const base64 = await page.screenshot({
+    clip: CLIP,
+    type: 'png',
+    encoding: 'base64',
+  });
+  return page.evaluate(async (b64) => {
+    const bitmap = await createImageBitmap(
+      await (await fetch(`data:image/png;base64,${b64}`)).blob(),
+    );
+    const canvas = new OffscreenCanvas(bitmap.width, bitmap.height);
+    const context = canvas.getContext('2d');
+    context.drawImage(bitmap, 0, 0);
+    const { data } = context.getImageData(0, 0, bitmap.width, bitmap.height);
+    let n = 0;
+    for (let i = 0; i < data.length; i += 4) {
+      const [r, g, b] = [data[i], data[i + 1], data[i + 2]];
+      if (b > 45 && g > 30 && r < 100 && b - r > 30) n += 1;
+    }
+    return n;
+  }, base64);
+}
+const state = () =>
+  page.evaluate(() => ({
+    files: window.__gevGeoImport.list(),
+    dataSources: window.__godsEyeView.viewer.dataSources.length,
+    rows: document.querySelectorAll('#geo-import-list .geo-import-row').length,
+    hint: document.getElementById('geo-import-hint')?.textContent || '',
+  }));
+
+try {
+  await page.setViewport({ width: 1280, height: 860 });
+  await page.goto(`${BASE_URL}/?welcome=0`, { waitUntil: 'domcontentloaded' });
+  await page.waitForFunction(
+    () =>
+      window.__gevGeoImport &&
+      window.__godsEyeView?.viewer &&
+      document.getElementById('loading-screen')?.classList.contains('hidden'),
+    { timeout: 90_000 },
+  );
+  await page.evaluate(async (view) => {
+    const viewer = window.__godsEyeView.viewer;
+    for (const id of window.__godsEyeView.dataManager.layers.keys())
+      await window.__godsEyeView.dataManager.setEnabled(id, false);
+    viewer.imageryLayers.removeAll();
+    viewer.terrainProvider = new window.__CESIUM__.EllipsoidTerrainProvider();
+    viewer.scene.globe.baseColor = window.__CESIUM__.Color.BLACK;
+    viewer.scene.globe.enableLighting = false;
+    viewer.camera.cancelFlight?.();
+    viewer.camera.setView({
+      destination: window.__CESIUM__.Cartesian3.fromDegrees(
+        view.lon,
+        view.lat,
+        view.height,
+      ),
+      orientation: { heading: 0, pitch: (view.pitch * Math.PI) / 180, roll: 0 },
+    });
+    viewer.scene.requestRender();
+  }, VIEW);
+  await wait(4000);
+  await page.evaluate(() => {
+    const rail = document.getElementById('pp-toggles');
+    if (rail?.classList.contains('collapsed'))
+      document
+        .querySelector('.panel-collapse-btn[data-collapse-target="pp-toggles"]')
+        ?.click();
+  });
+  await page.waitForFunction(
+    () =>
+      document.getElementById('geo-import-button')?.getBoundingClientRect()
+        .width > 0,
+    { timeout: 10_000 },
+  );
+  const before = await state();
+  check(
+    'Import is on the DISPLAY rail with an empty, hidden list',
+    before.rows === 0 &&
+      !(await page.evaluate(() =>
+        document
+          .getElementById('geo-import-list')
+          .classList.contains('visible'),
+      )),
+  );
+  const cyanBefore = await cyanPixels();
+  await page.evaluate(() => {
+    window.__godsEyeView.viewer.clock.shouldAnimate = false;
+  });
+  const clock = () =>
+    page.evaluate(() => {
+      const c = window.__godsEyeView.viewer.clock;
+      const iso = (t) => window.__CESIUM__.JulianDate.toIso8601(t, 0);
+      return {
+        start: iso(c.startTime),
+        stop: iso(c.stopTime),
+        range: c.clockRange,
+        step: c.clockStep,
+        multiplier: c.multiplier,
+        animate: c.shouldAnimate,
+        // Wall-clock drift aside, the current time must not jump to 2018/2019.
+        currentTime: window.__CESIUM__.JulianDate.toIso8601(c.currentTime),
+      };
+    });
+  const clockBefore = await clock();
+  const sourcesBefore = before.dataSources;
+
+  // Picked through the real <input type=file>.
+  const input = await page.$('#geo-import-input');
+  await input.uploadFile(...FILES);
+  const imported = await page
+    .waitForFunction(() => window.__gevGeoImport.list().length === 4, {
+      timeout: 60_000,
+    })
+    .then(
+      () => true,
+      () => false,
+    );
+  const after = await state();
+  check(
+    'four picked files become four rows and four data sources',
+    imported &&
+      after.rows === 4 &&
+      after.dataSources === before.dataSources + 4,
+    JSON.stringify(
+      after.files.map((f) => `${f.name}:${f.format}:${f.entityCount}`),
+    ),
+  );
+  check(
+    'formats are recognized',
+    after.files.map((f) => f.format).join() === 'geojson,kml,kmz,gpx',
+  );
+  check(
+    'the KML and KMZ had their outside references removed',
+    after.files[1].removed > 0 && after.files[2].removed > 0,
+    `removed ${after.files[1].removed}/${after.files[2].removed}`,
+  );
+  check(
+    'the hint says so',
+    /Added 4 files\..*left out/.test(after.hint),
+    after.hint,
+  );
+  const clockAfter = await clock();
+  check(
+    "dated KML and GPX leave the app's clock alone",
+    JSON.stringify(clockAfter) === JSON.stringify(clockBefore) &&
+      (await page.evaluate(
+        () =>
+          window.__godsEyeView.viewer.clockTrackedDataSource?.clock ===
+          undefined,
+      )),
+    `${JSON.stringify(clockBefore)} → ${JSON.stringify(clockAfter)}`,
+  );
+  const inside = await page.evaluate((from) => {
+    const viewer = window.__godsEyeView.viewer;
+    const now = viewer.clock.currentTime;
+    const sources = [];
+    for (let i = from; i < viewer.dataSources.length; i++)
+      sources.push(viewer.dataSources.get(i));
+    const entities = sources.flatMap(
+      (ds) => ds.importedEntities || ds.entities.values,
+    );
+    const named = (name) => entities.find((e) => e.name === name);
+    const gpx = sources[3].importedEntities || sources[3].entities.values;
+    const kmz = sources[2].importedEntities || sources[2].entities.values;
+    return {
+      sources: sources.length,
+      clocks: sources.filter((ds) => ds.clock !== undefined).length,
+      described: entities.filter((e) => e.description !== undefined).length,
+      labelled: entities.filter((e) => e.label !== undefined).length,
+      withProperties: entities.filter((e) => e.properties !== undefined).length,
+      withKml: entities.filter((e) => e.kml !== undefined).length,
+      hidden: entities.filter((e) => !e.isAvailable(now)).length,
+      datedPinNow: Boolean(named('QA KML pin')?.isAvailable(now)),
+      fallbackPins: ['QA KML pin', 'QA palette pin'].filter((name) =>
+        named(name)?.billboard?.image?.getValue(now),
+      ).length,
+      movingIsLine: Boolean(
+        named('QA moving')?.polyline && !named('QA moving')?.position,
+      ),
+      movingVertices:
+        named('QA moving')?.polyline?.positions?.getValue(now)?.length,
+      splitTracks: (sources[1].importedEntities || sources[1].entities.values)
+        .filter((e) => e.parent?.name === 'QA split tracks' && e.polyline)
+        .map((e) => e.polyline.positions.getValue(now).length),
+      gpxLines: gpx.filter((e) => e.polyline).length,
+      gpxPoints: gpx.filter((e) => e.billboard || e.point).length,
+      kmzLocalImage: kmz.some((e) =>
+        String(e.billboard?.image?.getValue(now) || '').startsWith('blob:'),
+      ),
+      kmzOverlay: kmz.some((e) => e.rectangle),
+      groundedLines: sources
+        .slice(1, 3)
+        .every((ds) =>
+          (ds.importedEntities || ds.entities.values)
+            .filter((e) => e.polyline)
+            .every((e) => e.polyline.clampToGround?.getValue(now)),
+        ),
+      xyzPolygon:
+        (sources[0].importedEntities || sources[0].entities.values)
+          .find((e) => e.polygon)
+          ?.polygon.perPositionHeight?.getValue(now) !== true,
+    };
+  }, sourcesBefore);
+  check(
+    'no imported entity keeps a description, label, properties or KML data',
+    inside.sources === 4 &&
+      inside.described +
+        inside.labelled +
+        inside.withProperties +
+        inside.withKml ===
+        0,
+    JSON.stringify(inside),
+  );
+  check(
+    'no imported source has a clock, and dated features draw now',
+    inside.clocks === 0 &&
+      inside.hidden === 0 &&
+      inside.datedPinNow &&
+      inside.movingIsLine &&
+      inside.movingVertices === 2,
+    JSON.stringify(inside),
+  );
+  check(
+    'blocked KML icon sources use drawable local fallback pins',
+    inside.fallbackPins === 2,
+    JSON.stringify({ fallbackPins: inside.fallbackPins }),
+  );
+  check(
+    'KML MultiTrack keeps its segments and original vertex count',
+    inside.splitTracks.join() === '2,2',
+    JSON.stringify(inside.splitTracks),
+  );
+  check(
+    'the GPX track keeps its two segments apart',
+    inside.gpxLines === 2 && inside.gpxPoints === 1,
+    JSON.stringify(inside),
+  );
+  check(
+    'KMZ retains its own packed image and overlay',
+    inside.kmzLocalImage && inside.kmzOverlay,
+  );
+  check(
+    'XYZ polygons and KML/KMZ lines use ground geometry',
+    inside.xyzPolygon && inside.groundedLines,
+  );
+  await page.evaluate((from) => {
+    for (const entity of window.__godsEyeView.viewer.dataSources.get(from)
+      .entities.values)
+      if (entity.billboard) entity.show = false;
+  }, sourcesBefore);
+  await page.evaluate((view) => {
+    const viewer = window.__godsEyeView.viewer;
+    viewer.camera.cancelFlight?.();
+    viewer.camera.setView({
+      destination: window.__CESIUM__.Cartesian3.fromDegrees(
+        view.lon,
+        view.lat,
+        view.height,
+      ),
+      orientation: { heading: 0, pitch: (view.pitch * Math.PI) / 180, roll: 0 },
+    });
+  }, VIEW);
+  await wait(2500);
+  const cyanShown = await cyanPixels();
+  await shot('imported');
+  check(
+    'the imported polygon paints on the globe',
+    cyanShown > cyanBefore * 4 && cyanShown > cyanBefore + 5000,
+    `${cyanBefore} → ${cyanShown}`,
+  );
+
+  const parkId = after.files[0].id;
+  await page.click(
+    `#geo-import-list [data-import-id="${parkId}"] button[data-action="toggle"]`,
+  );
+  const cyanHidden = await cyanPixels();
+  check(
+    'hiding it stops it painting',
+    cyanHidden < cyanShown / 3,
+    `${cyanShown} → ${cyanHidden}`,
+  );
+  await page.click(
+    `#geo-import-list [data-import-id="${parkId}"] button[data-action="toggle"]`,
+  );
+  check(
+    'showing it again paints it again',
+    (await cyanPixels()) > cyanHidden * 4,
+  );
+
+  // Keyboard: focus stays on the same control when the list is rebuilt.
+  const toggleSelector = `#geo-import-list [data-import-id="${parkId}"] button[data-action="toggle"]`;
+  await page.focus(toggleSelector);
+  await page.keyboard.press('Enter');
+  const focusAfterHide = await page.evaluate(
+    (sel) => document.activeElement === document.querySelector(sel),
+    toggleSelector,
+  );
+  await page.keyboard.press('Enter');
+  const focusAfterShow = await page.evaluate(
+    (sel) =>
+      document.activeElement === document.querySelector(sel) &&
+      document.activeElement.getAttribute('aria-pressed') === 'true',
+    toggleSelector,
+  );
+  check(
+    'keyboard focus stays on the toggle through hide and show',
+    focusAfterHide && focusAfterShow,
+  );
+
+  // Dropped onto the globe, as a person drags from their file manager.
+  await page.evaluate((text) => {
+    const container = window.__godsEyeView.viewer.container;
+    const transfer = new DataTransfer();
+    transfer.items.add(
+      new File([text], 'dropped.geojson', { type: 'application/geo+json' }),
+    );
+    for (const type of ['dragenter', 'dragover', 'drop'])
+      container.dispatchEvent(
+        new DragEvent(type, {
+          dataTransfer: transfer,
+          bubbles: true,
+          cancelable: true,
+        }),
+      );
+  }, geojson);
+  const dropped = await page
+    .waitForFunction(() => window.__gevGeoImport.list().length === 5, {
+      timeout: 20_000,
+    })
+    .then(
+      () => true,
+      () => false,
+    );
+  check('a file dropped on the globe imports', dropped);
+
+  // Not geodata: refused with a reason, nothing added.
+  await page.evaluate(() => {
+    const transfer = new DataTransfer();
+    transfer.items.add(
+      new File(['just some notes'], 'notes.txt', { type: 'text/plain' }),
+    );
+    window.__godsEyeView.viewer.container.dispatchEvent(
+      new DragEvent('drop', {
+        dataTransfer: transfer,
+        bubbles: true,
+        cancelable: true,
+      }),
+    );
+  });
+  await wait(800);
+  const refused = await state();
+  check(
+    'a file that is not geodata is refused with a reason',
+    refused.files.length === 5 &&
+      /notes\.txt: Only GeoJSON, KML, KMZ and GPX/.test(refused.hint),
+    refused.hint,
+  );
+
+  // Remove every file through its row button.
+  for (const { id } of refused.files)
+    await page.click(
+      `#geo-import-list [data-import-id="${id}"] button[data-action="remove"]`,
+    );
+  const cleared = await state();
+  check(
+    'Remove gives every data source back',
+    cleared.rows === 0 && cleared.dataSources === before.dataSources,
+    `${cleared.dataSources} vs ${before.dataSources}`,
+  );
+  await wait(1500);
+  check(
+    'nothing named inside a file, and no icon asset for one, was ever requested',
+    trapped.length === 0,
+    trapped.join(' '),
+  );
+  errors.push(...(await readRenderErrors(page)));
+  check('no page or rendering errors', errors.length === 0, errors.join(' | '));
+} catch (error) {
+  check('harness ran to completion', false, error?.stack || String(error));
+} finally {
+  await browser.close();
+  fs.rmSync(dir, { recursive: true, force: true });
+}
+console.log(failures ? `\n${failures} check(s) failed` : '\nall checks passed');
+process.exit(failures ? 1 : 0);

scripts/qa-gnss.mjs

@@ -0,0 +1,988 @@
+#!/usr/bin/env node
+/**
+ * qa-gnss.mjs — headless proof for the GNSS Integrity layer
+ * (id `gnss-integrity`): low navigation accuracy reported by ADS-B.
+ *
+ * Drives the REAL app in headless Chromium against a dev server (keyless).
+ * The live section reads adsb.lol through `/api/gnss-integrity` (60 s server
+ * cache, one upstream read per whole-degree anchor); the other sections
+ * stub that route in the page so they are deterministic.
+ *
+ *   (i)   LIVE — over Poland and the southern Baltic the layer settles with no error,
+ *         one geometry per cell and legend band counts that sum to the cell
+ *         count; cells are required only when the returned rows, binned
+ *         with the layer's own rules, reach the per-cell minimum (live
+ *         traffic varies by hour). Requires a non-stale response no older than 60 s.
+ *   (ii)  BANDS (synthetic) — a 10-aircraft cell with 5 degraded is high,
+ *         a 30-aircraft cell with 2 degraded is medium, a 3-aircraft cell
+ *         with 1 degraded is low (first bad discounted), a clean cell at sea
+ *         is low, a 2-aircraft cell is withheld; `stale: true` reaches
+ *         getStats. Every band is drawn and low is shown over land and sea.
+ *         The row reads as low navigation accuracy, and stats carry the
+ *         machine-readable provenance (GEV classifier, gpsjam bands, window).
+ *         PICK verifies actual perimeter and empty-ground clicks under GNSS.
+ *         CAMERA/GLOBE verify automatic sampling and the screen-centre anchor.
+ *   (iii) FAILURE — the route stubbed to 502: stats.error is set and the
+ *         cells already on the globe are kept.
+ *   (iv)  DISABLE — owned ground primitives are hidden.
+ *   (v)   KEYBOARD — the row's toggle button, focused, turns the layer on
+ *         with Enter and off with Space, keeps focus and names its state.
+ *   (vi)  VIEWPORT — at a 390x844 phone viewport the open row and its legend
+ *         fit the panel width with no horizontal overflow.
+ *   (vii) AGE (synthetic) — a fresh page whose stubbed proxy replays the same
+ *         stale snapshot observed 31 minutes ago draws nothing and reports no
+ *         error; observed 29 minutes ago it draws its cells. The replay keeps
+ *         its observation time instead of restarting the 30-minute window.
+ *
+ * Screenshots wait until every cell's ground geometry is built and show the
+ * open Data Layers row with its legend. Visual proof saved to
+ * qa-shots/gnss-*.png (gitignored).
+ *
+ * Run:  node scripts/qa-gnss.mjs --url http://localhost:4173
+ *       (also against a built preview: npm run build && npm run preview,
+ *       then pass the preview URL)
+ * Optional: --timeout-ms 180000 for a slow boot.
+ * Exits non-zero on any FAIL. Does not commit anything.
+ */
+
+import puppeteer from 'puppeteer';
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import {
+  accumulateGnssObservations,
+  binGnssCells,
+} from '../src/layers/gnss/records.js';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const REPO_ROOT = path.resolve(__dirname, '..');
+const SHOTS_DIR = path.join(REPO_ROOT, 'qa-shots');
+
+const argv = process.argv.slice(2);
+const getOpt = (name, dflt) => {
+  const i = argv.indexOf(name);
+  return i >= 0 && argv[i + 1] ? argv[i + 1] : dflt;
+};
+const APP_URL = getOpt('--url', 'http://localhost:4173');
+const HEADFUL = argv.includes('--headful');
+const TIMEOUT_MS = Number(getOpt('--timeout-ms', '60000'));
+const LAYER_ID = 'gnss-integrity';
+
+const results = [];
+function record(name, ok, detail) {
+  results.push({ name, ok, detail });
+  const tag = ok ? '\x1b[32mPASS\x1b[0m' : '\x1b[31mFAIL\x1b[0m';
+  console.log(`  [${tag}] ${name}${detail ? `  — ${detail}` : ''}`);
+}
+const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+
+/** Boot the app, dismiss the intro and place the camera straight down. */
+async function boot(page, { lon, lat, height }) {
+  await page.goto(`${APP_URL}/?welcome=0`, {
+    waitUntil: 'domcontentloaded',
+    timeout: TIMEOUT_MS,
+  });
+  await page.waitForFunction(
+    () => window.__godsEyeView?.viewer && window.__godsEyeView?.dataManager,
+    { timeout: TIMEOUT_MS },
+  );
+  await sleep(5000);
+  await page.keyboard.press('Escape');
+  await page.evaluate(
+    (lo, la, h) => {
+      const gev = window.__godsEyeView;
+      const d2r = Math.PI / 180;
+      // The app's intro flyTo animation clobbers a setView issued mid-flight.
+      try {
+        gev.viewer.camera.cancelFlight();
+      } catch {
+        /* no flight active */
+      }
+      gev.viewer.camera.setView({
+        destination: gev.viewer.scene.globe.ellipsoid.cartographicToCartesian({
+          longitude: lo * d2r,
+          latitude: la * d2r,
+          height: h,
+        }),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      gev.viewer.scene.requestRender?.();
+    },
+    lon,
+    lat,
+    height,
+  );
+}
+
+/** Enable (or refresh) the layer and poll until it settles. */
+async function enableAndSettle(page, { refresh = false } = {}) {
+  return page.evaluate(
+    async (id, again) => {
+      const dm = window.__godsEyeView.dataManager;
+      const layer = dm.layers.get(id).module;
+      if (again) await dm.refreshLayer(id);
+      else await dm.setEnabled(id, true);
+      const stats = layer.getStats();
+      const rowControls = layer.getRowControls().legend;
+      const legend = rowControls.map(({ label, count }) => ({ label, count }));
+      const blurb = rowControls[0]?.blurb ?? '';
+      const rowName =
+        document.querySelector(`[data-layer-id="${id}"] .data-name`)
+          ?.textContent ?? '';
+      const all = window.__godsEyeView.viewer.scene.groundPrimitives;
+      const ds = Array.from({ length: all.length }, (_, i) => all.get(i)).find(
+        (item) => item.id === id,
+      );
+      return {
+        stats,
+        legend,
+        blurb,
+        rowName,
+        name: layer.name,
+        entities: ds?.get(0)?.geometryInstances.length ?? 0,
+        shown: ds?.show ?? null,
+      };
+    },
+    LAYER_ID,
+    refresh,
+  );
+}
+
+/** Open the Data Layers panel and bring the GNSS row into view. */
+async function showLayerRow(page) {
+  await page.evaluate((id) => {
+    const panel = document.getElementById('data-panel');
+    if (panel.classList.contains('collapsed'))
+      panel.querySelector('[data-collapse-target="data-panel"]').click();
+    document
+      .querySelector(`[data-layer-id="${id}"]`)
+      ?.scrollIntoView({ block: 'center' });
+  }, LAYER_ID);
+  await sleep(800);
+}
+
+/** Actual card pixels on the shared canvas, available in dev and production. */
+function paintedOverlayPixels() {
+  const canvas = document.getElementById('world-overlay-canvas');
+  if (!canvas) return -1;
+  const pixels = canvas
+    .getContext('2d')
+    .getImageData(0, 0, canvas.width, canvas.height).data;
+  let count = 0;
+  for (let i = 3; i < pixels.length; i += 4) if (pixels[i] > 0) count++;
+  return count;
+}
+
+async function shoot(page, name) {
+  await page
+    .waitForFunction(
+      () => window.__godsEyeView.viewer.scene.globe.tilesLoaded,
+      { timeout: TIMEOUT_MS },
+    )
+    .catch(() => {});
+  await showLayerRow(page);
+  await page.screenshot({ path: path.join(SHOTS_DIR, `gnss-${name}.png`) });
+}
+
+/** Bounding-sphere state of every GNSS cell: DONE = 0, PENDING = 1, FAILED = 2. */
+function cellStates(id) {
+  const { viewer } = window.__godsEyeView;
+  const all = viewer.scene.groundPrimitives;
+  const ds = Array.from({ length: all.length }, (_, i) => all.get(i)).find(
+    (item) => item.id === id,
+  );
+  if (!ds?.length) return [];
+  return [ds.get(0).ready ? 0 : 1];
+}
+
+/** Wait until every GNSS cell's ground rectangle has finished building. */
+async function waitForBuiltCells(page, timeoutMs = 60000) {
+  const built = await page
+    .waitForFunction(
+      `(${cellStates})(${JSON.stringify(LAYER_ID)}).every((state) => state === 0)`,
+      { timeout: timeoutMs, polling: 250 },
+    )
+    .then(
+      () => true,
+      () => false,
+    );
+  const states = await page.evaluate(
+    `(${cellStates})(${JSON.stringify(LAYER_ID)})`,
+  );
+  return { built, detail: `states=${JSON.stringify(states)}` };
+}
+
+const fixtureRow = (hex, lat, lon, degraded) => ({
+  hex,
+  lat,
+  lon,
+  nic: degraded ? 0 : 8,
+  nacp: degraded ? 0 : 10,
+  gpsLost: false,
+  degraded,
+});
+
+/**
+ * Synthetic 0.5° cells: high at sea (5/10 bad), medium on land (2/30 bad),
+ * low on land (1/3 bad), low at sea (0/4 bad), withheld (2 aircraft).
+ */
+function fixturePayload() {
+  const rows = [];
+  const hex = (prefix, i) => `${prefix}${i.toString(16).padStart(2, '0')}`;
+  for (let i = 0; i < 10; i++)
+    rows.push(fixtureRow(hex('a000', i), 55.1 + i * 0.01, 19.1, i < 5));
+  for (let i = 0; i < 30; i++)
+    rows.push(fixtureRow(hex('d000', i), 54.1 + i * 0.01, 19.6, i < 2));
+  for (let i = 0; i < 3; i++)
+    rows.push(fixtureRow(hex('b000', i), 54.1 + i * 0.01, 18.1, i === 0));
+  for (let i = 0; i < 4; i++)
+    rows.push(fixtureRow(hex('e000', i), 55.1 + i * 0.01, 18.1, false));
+  for (let i = 0; i < 2; i++)
+    rows.push(fixtureRow(hex('c000', i), 53.1 + i * 0.01, 17.1, true));
+  return {
+    fetchedAt: Date.now(),
+    anchor: { lat: 55, lon: 19 },
+    radiusNm: 250,
+    rows,
+    stale: true,
+  };
+}
+
+/** Answer /api/gnss-integrity in-page from `fixturePayload()`. */
+async function stubRoute(page, { ageMs = 0, initialFailures = 0, stale } = {}) {
+  await page.evaluateOnNewDocument(
+    (payload, age, failures, staleOverride) => {
+      window.__gnssQaAgeMs = age;
+      window.__gnssQaRequests = [];
+      window.__gnssQaFailures = failures;
+      const realFetch = window.fetch.bind(window);
+      window.__gnssQaMode = 'fixture';
+      window.fetch = (input, init) => {
+        const url = typeof input === 'string' ? input : input?.url || '';
+        if (!url.includes('/api/gnss-integrity')) return realFetch(input, init);
+        window.__gnssQaRequests.push(url);
+        if (window.__gnssQaFailures > 0) {
+          window.__gnssQaFailures--;
+          return Promise.resolve(
+            Response.json(
+              { error: 'rate_limited' },
+              {
+                status: 429,
+                headers: { 'Retry-After': '5' },
+              },
+            ),
+          );
+        }
+        const ok = window.__gnssQaMode === 'fixture';
+        const body = ok
+          ? {
+              ...payload,
+              fetchedAt: Date.now() - (window.__gnssQaAgeMs || 0),
+              ageMs: window.__gnssQaAgeMs || 0,
+              stale: staleOverride ?? payload.stale,
+            }
+          : { error: 'gnss_integrity_unavailable' };
+        return Promise.resolve(
+          new Response(JSON.stringify(body), {
+            status: ok ? 200 : 502,
+            headers: { 'Content-Type': 'application/json' },
+          }),
+        );
+      };
+    },
+    fixturePayload(),
+    ageMs,
+    initialFailures,
+    stale,
+  );
+}
+
+/** Toggle button of the GNSS row, as the panel draws it. */
+function toggleState(id) {
+  const button = document.querySelector(
+    `[data-layer-id="${id}"] .data-toggle-btn`,
+  );
+  const layer = window.__godsEyeView.dataManager.layers.get(id);
+  return {
+    focused: document.activeElement === button,
+    label: button?.getAttribute('aria-label') ?? '',
+    enabled: Boolean(layer?.enabled),
+    count: layer?.module.getStats().count ?? -1,
+  };
+}
+
+/** Press a key on the focused GNSS toggle and wait for the lifecycle to settle. */
+async function pressToggle(page, key, wantEnabled) {
+  await page.evaluate((id) => {
+    document.querySelector(`[data-layer-id="${id}"] .data-toggle-btn`)?.focus();
+  }, LAYER_ID);
+  await page.keyboard.press(key);
+  await page
+    .waitForFunction(
+      (id, want) => {
+        const layer = window.__godsEyeView.dataManager.layers.get(id);
+        return (
+          Boolean(layer?.enabled) === want &&
+          (!want || layer.module.getStats().count > 0)
+        );
+      },
+      { timeout: 30000, polling: 250 },
+      LAYER_ID,
+      wantEnabled,
+    )
+    .catch(() => {});
+  return page.evaluate(`(${toggleState})(${JSON.stringify(LAYER_ID)})`);
+}
+
+async function main() {
+  console.log('\nGNSS Integrity proof (qa-gnss)');
+  console.log(`  App URL : ${APP_URL}\n`);
+  try {
+    const res = await fetch(APP_URL);
+    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+  } catch (e) {
+    console.error(
+      `\x1b[31mDev server not reachable at ${APP_URL} (${e.message}).\x1b[0m`,
+    );
+    process.exit(2);
+  }
+  fs.mkdirSync(SHOTS_DIR, { recursive: true });
+  const executablePath =
+    process.env.PUPPETEER_EXECUTABLE_PATH ||
+    (await puppeteer.executablePath().catch(() => null)) ||
+    undefined;
+  const browser = await puppeteer.launch({
+    headless: HEADFUL ? false : 'new',
+    ...(executablePath && fs.existsSync(executablePath)
+      ? { executablePath }
+      : {}),
+    args: [
+      '--use-gl=angle',
+      '--use-angle=swiftshader',
+      '--disable-dev-shm-usage',
+      '--disable-background-timer-throttling',
+      '--disable-renderer-backgrounding',
+      '--window-size=1440,900',
+    ],
+  });
+
+  let exitCode = 0;
+  const errors = [];
+  try {
+    // ── (i) LIVE ──────────────────────────────────────────────────────────
+    console.log(
+      '(i) LIVE — adsb.lol integrity snapshot over Poland and the southern Baltic...',
+    );
+    const live = await browser.newPage();
+    await live.setViewport({ width: 1440, height: 900 });
+    live.on('pageerror', (e) => errors.push(e.message));
+    const liveBodies = [];
+    live.on('response', (res) => {
+      if (res.url().includes('/api/gnss-integrity') && res.ok())
+        liveBodies.push(res.json());
+    });
+    await boot(live, { lon: 19.6, lat: 52.6, height: 1_100_000 });
+    const l = await enableAndSettle(live);
+    const legendTotal = l.legend.reduce((sum, { count }) => sum + count, 0);
+    // Bin what adsb.lol actually returned with the layer's own rules: live
+    // traffic varies by hour, so cells are required only when some cell
+    // really reached the minimum aircraft count.
+    const liveSnapshots = (await Promise.allSettled(liveBodies))
+      .filter((r) => r.status === 'fulfilled')
+      .map((r) => r.value);
+    record(
+      'LIVE: a successful, dated integrity response was received',
+      liveSnapshots.length > 0 &&
+        liveSnapshots.every(
+          (body) =>
+            Array.isArray(body.rows) &&
+            Number.isFinite(body.ageMs) &&
+            body.ageMs >= 0 &&
+            body.ageMs <= 60000 &&
+            body.stale !== true &&
+            body.classifier === 'gev-nic-nacp-v2',
+        ),
+      `successful responses=${liveSnapshots.length}`,
+    );
+    const liveRows = liveSnapshots.reduce(
+      (sum, body) => sum + (body.rows?.length || 0),
+      0,
+    );
+    const expectedStore = new Map();
+    for (const body of liveSnapshots) {
+      const at = Date.now();
+      accumulateGnssObservations(expectedStore, body.rows, at, {
+        observedAt: at - body.ageMs,
+      });
+    }
+    const expectedCells = binGnssCells(expectedStore).length;
+    record(
+      'LIVE: no error, one geometry per cell',
+      !l.stats.error && l.entities === l.stats.count,
+      `cells=${l.stats.count} entities=${l.entities} error=${JSON.stringify(l.stats.error)}`,
+    );
+    if (expectedCells > 0) {
+      record(
+        'LIVE: a snapshot with a qualifying cell yields cells',
+        l.stats.count > 0,
+        `rows=${liveRows} expected=${expectedCells} cells=${l.stats.count}`,
+      );
+    } else {
+      console.log(
+        `  [info] ${liveRows} live rows, no cell reaches the minimum — cell count not asserted`,
+      );
+    }
+    record(
+      'LIVE: legend band counts sum to the cell count',
+      legendTotal === l.stats.count,
+      JSON.stringify(l.legend),
+    );
+    const liveBuilt = await waitForBuiltCells(live);
+    record(
+      'LIVE: every cell rectangle is built on a parked camera',
+      liveBuilt.built,
+      liveBuilt.detail,
+    );
+    await shoot(live, 'live-poland-baltic');
+    await live.close();
+
+    // ── (ii) BANDS ────────────────────────────────────────────────────────
+    console.log(
+      '\n(ii) BANDS — synthetic integrity rows through the real layer...',
+    );
+    const page = await browser.newPage();
+    await page.setViewport({ width: 1440, height: 900 });
+    page.on('pageerror', (e) => errors.push(e.message));
+    // Stub the route in-page rather than with request interception: an
+    // intercepted page stalls Cesium's geometry workers, so ground rectangles
+    // never finish building and the screenshot would not show real behaviour.
+    await stubRoute(page);
+    await boot(page, { lon: 18.6, lat: 54.6, height: 450_000 });
+    const f = await enableAndSettle(page);
+    const band = (prefix) =>
+      f.legend.find(({ label }) => label.startsWith(prefix))?.count;
+    record(
+      'BANDS: 4 cells shown, the 2-aircraft cell withheld',
+      f.stats.count === 4 && f.entities === 4,
+      `cells=${f.stats.count} entities=${f.entities}`,
+    );
+    record(
+      'BANDS: 5/10 is high, 2/30 is medium, 1/3 and 0/4 are low',
+      band('Low-accuracy score >') === 1 &&
+        band('Low-accuracy score 2') === 1 &&
+        band('Low-accuracy score <') === 2,
+      JSON.stringify(f.legend),
+    );
+    const prov = f.stats.provenance;
+    record(
+      'PROVENANCE: GEV classifier, gpsjam bands and visited-view window are machine-readable',
+      prov?.classifier?.id === 'gev-nic-nacp-v2' &&
+        prov.classifier.definedBy === 'GEV' &&
+        prov.classifier.validated === false &&
+        prov.aggregation?.source === 'https://gpsjam.org/faq' &&
+        JSON.stringify(prov.aggregation.bands) === '[2,10]' &&
+        prov.window?.minutes === 30 &&
+        prov.window.scope === 'visited-view' &&
+        prov.interpretation?.validated === false,
+      JSON.stringify(prov?.classifier),
+    );
+    record(
+      'WORDING: the row leads with low navigation accuracy, interference only as the hedged reading',
+      f.name === 'GNSS Integrity' &&
+        f.rowName.includes('GNSS Integrity') &&
+        !/interference/i.test(f.rowName) &&
+        f.legend.every(({ label }) => label.startsWith('Low-accuracy score')) &&
+        /one aircraft is discounted/.test(f.blurb) &&
+        /not a detection/.test(f.blurb),
+      `name=${JSON.stringify(f.name)}`,
+    );
+    record(
+      'BANDS: stale snapshot is reported',
+      f.stats.stale === true,
+      `stale=${f.stats.stale}`,
+    );
+    const bandsBuilt = await waitForBuiltCells(page);
+    record(
+      'BANDS: every cell rectangle is built on a parked camera',
+      bandsBuilt.built,
+      bandsBuilt.detail,
+    );
+    await shoot(page, 'synthetic-bands');
+
+    // GNSS fills must not own map input, including over a real perimeter.
+    await page.evaluate(async () => {
+      const original = window.fetch.bind(window);
+      window.fetch = (input, init) => {
+        const url = typeof input === 'string' ? input : input.url;
+        if (url.includes('/api/fire-perimeters/inciweb'))
+          return Promise.resolve(Response.json({ rows: [] }));
+        if (url.includes('/api/fire-perimeters'))
+          return Promise.resolve(
+            Response.json({
+              rows: [
+                {
+                  stableId: 'gnss-pick-qa',
+                  name: 'GNSS PICK QA FIRE',
+                  containedPct: 0,
+                  acres: 100,
+                  polygons: [
+                    [
+                      [
+                        [18.247, 54.247],
+                        [18.253, 54.247],
+                        [18.253, 54.253],
+                        [18.247, 54.253],
+                        [18.247, 54.247],
+                      ],
+                    ],
+                  ],
+                },
+              ],
+            }),
+          );
+        return original(input, init);
+      };
+      const { viewer, dataManager } = window.__godsEyeView;
+      viewer.camera.cancelFlight();
+      viewer.camera.setView({
+        destination: viewer.scene.globe.ellipsoid.cartographicToCartesian({
+          longitude: (18.25 * Math.PI) / 180,
+          latitude: (54.25 * Math.PI) / 180,
+          height: 2500,
+        }),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      await dataManager.setEnabled('fire-perimeters', true);
+      viewer.scene.requestRender();
+    });
+    await page.waitForFunction(
+      () => {
+        const v = window.__godsEyeView.viewer,
+          p = v.scene.pick({
+            x: v.scene.canvas.clientWidth / 2,
+            y: v.scene.canvas.clientHeight / 2,
+          });
+        return String(p?.id?.id ?? p?.id ?? '').startsWith(
+          'fire-perimeter:gnss-pick-qa:',
+        );
+      },
+      { timeout: TIMEOUT_MS, polling: 250 },
+    );
+    const pickProbe = await page.evaluate(() => {
+      const v = window.__godsEyeView.viewer,
+        c = v.scene.canvas;
+      const centre = { x: c.clientWidth / 2, y: c.clientHeight / 2 };
+      const empty = { x: centre.x + 300, y: centre.y };
+      const picked = v.scene.pick(empty),
+        box = c.getBoundingClientRect();
+      return {
+        centre: { x: centre.x + box.left, y: centre.y + box.top },
+        empty: { x: empty.x + box.left, y: empty.y + box.top },
+        surface: !picked || picked.id === undefined,
+        height: v.camera.positionCartographic.height,
+      };
+    });
+    record('PICK: a perimeter remains selectable under GNSS', true);
+    record(
+      'PICK: street ground remains a surface pick under GNSS',
+      pickProbe.surface,
+    );
+    const beforeCardPixels = await page.evaluate(paintedOverlayPixels);
+    await page.mouse.click(pickProbe.centre.x, pickProbe.centre.y);
+    await page.waitForFunction(
+      `(${paintedOverlayPixels})() > ${beforeCardPixels + 100}`,
+      { timeout: 10000, polling: 250 },
+    );
+    const selectedCardPixels = await page.evaluate(paintedOverlayPixels);
+    record(
+      'PICK: actual perimeter click paints its incident card',
+      selectedCardPixels > beforeCardPixels + 100,
+      `${beforeCardPixels} → ${selectedCardPixels} pixels`,
+    );
+    await page.screenshot({
+      path: path.join(SHOTS_DIR, 'gnss-perimeter-selected.png'),
+    });
+    await page.mouse.click(pickProbe.empty.x, pickProbe.empty.y);
+    await page.waitForFunction(
+      `(${paintedOverlayPixels})() <= ${beforeCardPixels}`,
+      { timeout: 10000, polling: 250 },
+    );
+    const clearedCardPixels = await page.evaluate(paintedOverlayPixels);
+    record(
+      'PICK: empty ground clears the perimeter card',
+      clearedCardPixels <= beforeCardPixels,
+      `${selectedCardPixels} → ${clearedCardPixels} pixels`,
+    );
+    await page.mouse.click(pickProbe.empty.x, pickProbe.empty.y, {
+      clickCount: 2,
+    });
+    await sleep(1000);
+    record(
+      'PICK: empty double-click does not zoom to a GNSS cell',
+      await page.evaluate(
+        (height) =>
+          Math.abs(
+            window.__godsEyeView.viewer.camera.positionCartographic.height -
+              height,
+          ) < 200,
+        pickProbe.height,
+      ),
+    );
+    await page.evaluate(async () => {
+      await window.__godsEyeView.dataManager.setEnabled(
+        'fire-perimeters',
+        false,
+      );
+    });
+    console.log('\nCAMERA — automatic regional refresh without toggling...');
+    const beforeMove = await page.evaluate(
+      () => window.__gnssQaRequests.length,
+    );
+    await page.evaluate(() => {
+      const { viewer } = window.__godsEyeView;
+      viewer.camera.setView({
+        destination: viewer.scene.globe.ellipsoid.cartographicToCartesian({
+          longitude: (139.7 * Math.PI) / 180,
+          latitude: (35.7 * Math.PI) / 180,
+          height: 1_100_000,
+        }),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      viewer.scene.requestRender();
+    });
+    await page.waitForFunction(
+      () => {
+        const url = window.__gnssQaRequests.at(-1);
+        return (
+          url &&
+          Math.abs(
+            Number(new URL(url, location.origin).searchParams.get('lon')) -
+              139.7,
+          ) < 1
+        );
+      },
+      { timeout: 15000 },
+    );
+    await sleep(3500);
+    const moved = await page.evaluate(
+      (id) => ({
+        requests: window.__gnssQaRequests.length,
+        enabled: window.__godsEyeView.dataManager.isEnabled(id),
+        coverage: window.__godsEyeView.dataManager.layers
+          .get(id)
+          .module.getStats().coverage,
+        info: document.querySelector(
+          `[data-layer-id="${id}"] .data-toggle-controls-info`,
+        )?.textContent,
+      }),
+      LAYER_ID,
+    );
+    record(
+      'CAMERA: moving to Tokyo automatically refreshes the new region and updates the row',
+      moved.enabled &&
+        moved.requests > beforeMove &&
+        moved.requests <= beforeMove + 2 &&
+        moved.coverage?.longitude === 140 &&
+        /Regional sample.*250 nm radius/.test(moved.info),
+      JSON.stringify(moved),
+    );
+    await shoot(page, 'camera-refresh');
+    await page.evaluate(() => {
+      const { viewer } = window.__godsEyeView;
+      viewer.camera.setView({
+        destination: viewer.scene.globe.ellipsoid.cartographicToCartesian({
+          longitude: (12.4 * Math.PI) / 180,
+          latitude: (41.9 * Math.PI) / 180,
+          height: 16_000_000,
+        }),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      viewer.scene.requestRender();
+    });
+    await page.waitForFunction(
+      () => {
+        const url = window.__gnssQaRequests.at(-1);
+        const params = url && new URL(url, location.origin).searchParams;
+        return (
+          params &&
+          Math.abs(Number(params.get('lon')) - 12.4) < 1 &&
+          Math.abs(Number(params.get('lat')) - 41.9) < 1
+        );
+      },
+      { timeout: 15000 },
+    );
+    const world = await page.evaluate((id) => {
+      const { viewer, dataManager } = window.__godsEyeView;
+      const bounds = viewer.camera.computeViewRectangle(
+        viewer.scene.globe.ellipsoid,
+      );
+      return {
+        enabled: dataManager.isEnabled(id),
+        height: viewer.camera.positionCartographic.height,
+        boundsMidLongitude:
+          bounds && ((bounds.west + bounds.east) * 90) / Math.PI,
+        coverage: dataManager.layers.get(id).module.getStats().coverage,
+      };
+    }, LAYER_ID);
+    record(
+      'GLOBE: zoomed-out sampling stays centred on Rome and exposes its regional radius',
+      world.enabled &&
+        world.height > 15_000_000 &&
+        world.coverage?.longitude === 12 &&
+        world.coverage?.latitude === 42 &&
+        world.coverage?.radiusNm === 250,
+      JSON.stringify(world),
+    );
+    await shoot(page, 'globe-regional');
+    await page.evaluate(() => {
+      const { viewer } = window.__godsEyeView;
+      viewer.camera.setView({
+        destination: viewer.scene.globe.ellipsoid.cartographicToCartesian({
+          longitude: (18.6 * Math.PI) / 180,
+          latitude: (54.6 * Math.PI) / 180,
+          height: 450_000,
+        }),
+        orientation: { heading: 0, pitch: -Math.PI / 2, roll: 0 },
+      });
+      viewer.scene.requestRender();
+    });
+    await page.waitForFunction(
+      () => {
+        const url = window.__gnssQaRequests.at(-1);
+        return (
+          url &&
+          Math.abs(
+            Number(new URL(url, location.origin).searchParams.get('lon')) -
+              18.6,
+          ) < 1
+        );
+      },
+      { timeout: 15000 },
+    );
+    await sleep(3500);
+
+    // ── (iii) FAILURE ─────────────────────────────────────────────────────
+    console.log('\n(iii) FAILURE — /api/gnss-integrity stubbed to 502...');
+    await page.evaluate(() => {
+      window.__gnssQaMode = 'error';
+    });
+    const e = await enableAndSettle(page, { refresh: true });
+    record(
+      'FAILURE: error surfaced, cells kept',
+      Boolean(e.stats.error) && e.stats.count === 4 && e.entities === 4,
+      `error=${JSON.stringify(e.stats.error)} cells=${e.stats.count}`,
+    );
+    await shoot(page, 'failure');
+
+    // ── (iv) DISABLE ──────────────────────────────────────────────────────
+    console.log('\n(iv) DISABLE...');
+    const shown = await page.evaluate(async (id) => {
+      await window.__godsEyeView.dataManager.setEnabled(id, false);
+      const all = window.__godsEyeView.viewer.scene.groundPrimitives;
+      return Array.from({ length: all.length }, (_, i) => all.get(i)).find(
+        (item) => item.id === id,
+      )?.show;
+    }, LAYER_ID);
+    record('DISABLE: data source hidden', shown === false, `show=${shown}`);
+    await shoot(page, 'disabled');
+
+    // ── (v) KEYBOARD ──────────────────────────────────────────────────────
+    console.log('\n(v) KEYBOARD — the row toggle, from the keyboard...');
+    await page.evaluate(() => {
+      window.__gnssQaMode = 'fixture';
+    });
+    await showLayerRow(page);
+    const on = await pressToggle(page, 'Enter', true);
+    record(
+      'KEYBOARD: Enter on the focused toggle enables the layer and keeps focus',
+      on.enabled &&
+        on.focused &&
+        on.count === 4 &&
+        /^GNSS Integrity: /.test(on.label) &&
+        !/OFF$/.test(on.label),
+      JSON.stringify(on),
+    );
+    const off = await pressToggle(page, ' ', false);
+    record(
+      'KEYBOARD: Space on the focused toggle disables it and the label says OFF',
+      !off.enabled && off.focused && /^GNSS Integrity: OFF$/.test(off.label),
+      JSON.stringify(off),
+    );
+
+    // ── (vi) VIEWPORT ─────────────────────────────────────────────────────
+    console.log(
+      '\n(vi) VIEWPORT — the open row on a 390x844 phone viewport...',
+    );
+    await page.close();
+    // A fresh page: switching an open page to isMobile reloads it, which
+    // would measure a half-booted app instead of the open row.
+    const phone = await browser.newPage();
+    await phone.setViewport({ width: 390, height: 844, isMobile: true });
+    phone.on('pageerror', (e) => errors.push(e.message));
+    await stubRoute(phone);
+    await boot(phone, { lon: 18.6, lat: 54.6, height: 450_000 });
+    await showLayerRow(phone);
+    await pressToggle(phone, 'Enter', true);
+    await showLayerRow(phone);
+    const fit = await phone.evaluate((id) => {
+      const row = document.querySelector(`[data-layer-id="${id}"]`);
+      const legend = [...row.querySelectorAll('.data-toggle-legend-item')];
+      const rect = row.getBoundingClientRect();
+      return {
+        width: window.innerWidth,
+        rowLeft: Math.round(rect.left),
+        rowRight: Math.round(rect.right),
+        overflow: row.scrollWidth - row.clientWidth,
+        legendItems: legend.length,
+        coverageInfo: row.querySelector('.data-toggle-controls-info')
+          ?.textContent,
+        legendInside: legend.every((item) => {
+          const r = item.getBoundingClientRect();
+          return (
+            r.width > 0 && r.left >= rect.left - 1 && r.right <= rect.right + 1
+          );
+        }),
+      };
+    }, LAYER_ID);
+    record(
+      'VIEWPORT: row and legend fit a 390 px viewport without horizontal overflow',
+      fit.rowLeft >= 0 &&
+        fit.rowRight <= fit.width &&
+        fit.overflow <= 0 &&
+        fit.legendItems === 3 &&
+        /Regional sample.*250 nm radius/.test(fit.coverageInfo) &&
+        fit.legendInside,
+      JSON.stringify(fit),
+    );
+    await phone.screenshot({ path: path.join(SHOTS_DIR, 'gnss-phone.png') });
+    await phone.close();
+
+    console.log(
+      '\nSTARTUP — initial rate limit stays enabled and recovers automatically...',
+    );
+    const retry = await browser.newPage();
+    await retry.setViewport({ width: 1440, height: 900 });
+    retry.on('pageerror', (e) => errors.push(e.message));
+    // Pages share the disposable test context's storage. Start this one cold,
+    // so a previous fixture cannot auto-enable GNSS before the START test.
+    await retry.evaluateOnNewDocument(() => localStorage.clear());
+    await stubRoute(retry, { initialFailures: 1, stale: false });
+    await boot(retry, { lon: 18.6, lat: 54.6, height: 450_000 });
+    await showLayerRow(retry);
+    await retry.evaluate((id) => {
+      window.__gnssQaFailedStarts = 0;
+      window.__godsEyeView.dataManager.subscribe((change) => {
+        if (change.layerId === id && change.type === 'visibility-failed')
+          window.__gnssQaFailedStarts++;
+      });
+    }, LAYER_ID);
+    const initial = await enableAndSettle(retry);
+    const limited = await retry.evaluate((id) => {
+      const dm = window.__godsEyeView.dataManager;
+      const row = document.querySelector(`[data-layer-id="${id}"]`);
+      return {
+        enabled: dm.isEnabled(id),
+        failedStarts: window.__gnssQaFailedStarts,
+        label: row.querySelector('.data-toggle-btn').textContent,
+        info: row.querySelector('.data-toggle-controls-info').textContent,
+      };
+    }, LAYER_ID);
+    record(
+      'STARTUP: first 429 keeps the layer enabled and shows automatic retry timing',
+      limited.enabled &&
+        limited.failedStarts === 0 &&
+        limited.label === 'UNAVAILABLE' &&
+        initial.stats.count === 0 &&
+        initial.stats.retryInSec > 0 &&
+        /rate limited.*Retrying automatically at/.test(limited.info),
+      JSON.stringify(limited),
+    );
+    await retry.screenshot({
+      path: path.join(SHOTS_DIR, 'gnss-startup-retrying.png'),
+    });
+    await retry.waitForFunction(
+      (id) => {
+        const layer = window.__godsEyeView.dataManager.layers.get(id);
+        return (
+          layer.enabled &&
+          layer.module.getStats().error === null &&
+          layer.module.getStats().count === 4
+        );
+      },
+      { timeout: 20000 },
+      LAYER_ID,
+    );
+    const recovered = await retry.evaluate(
+      (id) => ({
+        requests: window.__gnssQaRequests.length,
+        enabled: window.__godsEyeView.dataManager.isEnabled(id),
+        label: document.querySelector(
+          `[data-layer-id="${id}"] .data-toggle-btn`,
+        ).textContent,
+        info: document.querySelector(
+          `[data-layer-id="${id}"] .data-toggle-controls-info`,
+        ).textContent,
+      }),
+      LAYER_ID,
+    );
+    record(
+      'STARTUP: one automatic retry recovers to ON without toggling and clears the warning',
+      recovered.enabled &&
+        recovered.requests === 2 &&
+        recovered.label === 'ON' &&
+        !/Retrying/.test(recovered.info),
+      JSON.stringify(recovered),
+    );
+    await shoot(retry, 'startup-recovered');
+    await retry.close();
+
+    // ── (vii) AGE ─────────────────────────────────────────────────────────
+    console.log(
+      '\n(vii) AGE — a replayed stale snapshot keeps its observation time...',
+    );
+    const aged = await browser.newPage();
+    await aged.setViewport({ width: 1440, height: 900 });
+    aged.on('pageerror', (e) => errors.push(e.message));
+    await stubRoute(aged, { ageMs: 31 * 60_000 });
+    await boot(aged, { lon: 18.6, lat: 54.6, height: 450_000 });
+    const old = await enableAndSettle(aged, {});
+    record(
+      'AGE: a snapshot observed 31 min ago adds no cells and is not an error',
+      old.stats.count === 0 && old.entities === 0 && !old.stats.error,
+      `cells=${old.stats.count} entities=${old.entities} error=${JSON.stringify(old.stats.error)}`,
+    );
+    await aged.evaluate(() => {
+      window.__gnssQaAgeMs = 29 * 60_000;
+    });
+    const recent = await enableAndSettle(aged, { refresh: true });
+    record(
+      'AGE: the same snapshot observed 29 min ago is still inside the window',
+      recent.stats.count === 4 && recent.entities === 4,
+      `cells=${recent.stats.count} entities=${recent.entities}`,
+    );
+    await aged.close();
+    record(
+      'no uncaught browser errors',
+      errors.length === 0,
+      errors.slice(0, 3).join(' | '),
+    );
+  } catch (err) {
+    console.error('\x1b[31mHarness error:\x1b[0m', err);
+    exitCode = 3;
+  } finally {
+    await browser.close();
+  }
+
+  const pass = results.filter((r) => r.ok).length;
+  const fail = results.length - pass;
+  console.log('\n' + '─'.repeat(60));
+  console.log(`  RESULT: ${pass} passed, ${fail} failed`);
+  console.log(`  Shots : ${SHOTS_DIR}/gnss-*.png`);
+  console.log('─'.repeat(60) + '\n');
+  process.exit(exitCode || (fail > 0 ? 1 : 0));
+}
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(3);
+});

scripts/qa-street-level.mjs

@@ -3,8 +3,9 @@
  * Browser QA for the Street Level layer against a running server. Run with
  * `npm run qa:street-level -- --url http://localhost:4173`.
  *
- * `--fixtures` (the CI mode) answers every *.mapillary.com and KartaView
- * request from fixtures, so nothing reaches Mapillary or KartaView. The server still needs a token
+ * `--fixtures` (the CI mode) answers every *.mapillary.com, KartaView and
+ * Panoramax request from fixtures, so nothing reaches those providers. The
+ * server still needs a token
  * because the bundle carries it; CI uses a dummy one. Fixture runs also stage
  * a rejected key and a keyless second server.
  *
@@ -46,6 +47,17 @@ import {
   kartaViewPhotos,
   resetKartaViewFixture,
 } from './fixtures/street-level/kartaView.mjs';
+import {
+  answerPanoramaxRequest,
+  describePanoramaxCall,
+  PNX_CREATOR,
+  PNX_LINE,
+  PNX_PARK,
+  PNX_SEQUENCES,
+  panoramaxHdDownloads,
+  panoramaxPictures,
+  resetPanoramaxFixture,
+} from './fixtures/street-level/panoramax.mjs';
 
 const PANEL_ID = 'street-level-panel';
 
@@ -62,6 +74,7 @@ export const EXPECTED_PROVIDERS = Object.freeze([
   'mapillary',
   'google',
   'kartaview',
+  'panoramax',
 ]);
 
 /**
@@ -245,6 +258,8 @@ export async function serveFixtures(page, fixture) {
       { urlPattern: '*://api.kartaview.org/*' },
       { urlPattern: '*://cdn.kartaview.org/*' },
       { urlPattern: '*://*.openstreetcam.org/*' },
+      { urlPattern: '*://api.panoramax.xyz/*' },
+      { urlPattern: '*://panoramax.openstreetmap.fr/*' },
     ],
   });
   const fulfil = (requestId, { status, headers = {}, contentType, body }) =>
@@ -280,6 +295,14 @@ export async function serveFixtures(page, fixture) {
       answer = answerKartaViewRequest({ method, url: request.url });
       fixture.calls.add(call);
       if (!answer.known) fixture.unknown.push(call);
+    } else if (
+      address.hostname === 'api.panoramax.xyz' ||
+      address.hostname === 'panoramax.openstreetmap.fr'
+    ) {
+      const call = describePanoramaxCall(method, address);
+      answer = answerPanoramaxRequest({ method, url: request.url });
+      fixture.calls.add(call);
+      if (!answer.known) fixture.unknown.push(call);
     } else if (
       address.pathname === '/api/mapillary/status' &&
       fixture.configured !== undefined
@@ -1054,7 +1077,7 @@ async function main() {
           assert.equal(street.renderModes, true, 'FIT / FILL for a flat photo');
           assert.ok(
             await settle(page, () => {
-              const img = document.querySelector('.sl-kv-photo');
+              const img = document.querySelector('.sl-photo-flat');
               return img && !img.hidden && img.naturalWidth > 0;
             }),
             'the photo is on screen',
@@ -1098,7 +1121,7 @@ async function main() {
             );
           }
           const before = street.imageId;
-          await clickPanelControl(page, '.sl-kv-step-next');
+          await clickPanelControl(page, '.sl-photo-step-next');
           assert.ok(
             await uiUntil(
               (u, was) =>
@@ -1150,10 +1173,10 @@ async function main() {
             assert.equal(u.street.error, null);
             assert.equal(u.street.renderModes, false, 'no frame to fit');
             assert.equal(
-              await page.$eval('.sl-kv-pano', (canvas) => canvas.hidden),
+              await page.$eval('.sl-photo-pano', (canvas) => canvas.hidden),
               false,
             );
-            const box = await page.$eval('.sl-kv-pano', (canvas) => {
+            const box = await page.$eval('.sl-photo-pano', (canvas) => {
               const r = canvas.getBoundingClientRect();
               return { x: r.x + r.width / 2, y: r.y + r.height / 2 };
             });
@@ -1170,7 +1193,7 @@ async function main() {
             // A GPU reset: the panorama comes back on a new canvas, and drags.
             assert.ok(
               await page.evaluate(() => {
-                const canvas = document.querySelector('.sl-kv-pano');
+                const canvas = document.querySelector('.sl-photo-pano');
                 window.__kvLostCanvas = canvas;
                 const lose = canvas
                   .getContext('webgl')
@@ -1184,7 +1207,7 @@ async function main() {
               await settle(
                 page,
                 () => {
-                  const canvas = document.querySelector('.sl-kv-pano');
+                  const canvas = document.querySelector('.sl-photo-pano');
                   return (
                     canvas &&
                     canvas !== window.__kvLostCanvas &&
@@ -1231,6 +1254,349 @@ async function main() {
       await setStack(original);
     }
 
+    /**
+     * Panoramax: keyless orange coverage with both filters, a line click
+     * opening that sequence's picture nearest the click (author, licence,
+     * cones, ›), a 360° picture whose original is fetched once on EXPAND.
+     * Live runs park over Paris, where Panoramax has pictures. Runs on a
+     * draped map; leaves Mapillary lit.
+     */
+    async function panoramaxSteps() {
+      resetPanoramaxFixture();
+      const ui = () =>
+        page.evaluate(() =>
+          window.__godsEyeView.dataManager.layers
+            .get('street-level')
+            .module.getUIState(),
+        );
+      const uiUntil = (test, arg = null, options) =>
+        settle(
+          page,
+          `(${test})(window.__godsEyeView.dataManager.layers.get('street-level').module.getUIState(), ${JSON.stringify(arg)})`,
+          undefined,
+          options,
+        );
+      const lit = (id) =>
+        uiUntil(
+          (u, want) =>
+            u.providers.find((p) => p.id === want)?.on === true &&
+            u.providers.filter((p) => p.on).length === 1,
+          id,
+        );
+      const module = (call, ...args) =>
+        page.evaluate(
+          (name, list) =>
+            window.__godsEyeView.dataManager.layers
+              .get('street-level')
+              .module[name](...list),
+          call,
+          args,
+        );
+      const stack = () =>
+        page.evaluate(() =>
+          window.__godsEyeView.mapStackController.getActiveId(),
+        );
+      const setStack = async (id) => {
+        await page.evaluate(
+          (stackId) =>
+            window.__godsEyeView.mapStackController.setStack(stackId),
+          id,
+        );
+        await settle(
+          page,
+          (stackId) =>
+            window.__godsEyeView.mapStackController.getActiveId() === stackId,
+          id,
+        );
+      };
+      const camera = () =>
+        page.evaluate(() => {
+          const c = window.__godsEyeView.viewer.camera.positionCartographic;
+          return {
+            lon: (c.longitude * 180) / Math.PI,
+            lat: (c.latitude * 180) / Math.PI,
+            height: c.height,
+          };
+        });
+      const pnxChip = '#sl-provider-chips [data-chip-id="panoramax"]';
+      const original = await stack();
+      await module('closeViewer');
+      await setStack('esri-imagery');
+      for (let attempt = 0; attempt < 4; attempt++) {
+        await page.evaluate((at) => {
+          const v = window.__godsEyeView.viewer;
+          v.camera.cancelFlight?.();
+          const C = v.camera.positionCartographic.constructor;
+          v.camera.setView({
+            destination: v.scene.globe.ellipsoid.cartographicToCartesian(
+              C.fromDegrees(at.lon, at.lat, at.height),
+            ),
+            orientation: { heading: 0, pitch: at.pitch, roll: 0 },
+          });
+        }, PNX_PARK);
+        await sleep(1000);
+      }
+      try {
+        await step(
+          'Panoramax: its chip draws keyless orange coverage, keeps both filters, credits Panoramax and lights in the share link',
+          async () => {
+            await clickPanelControl(page, pnxChip);
+            assert.ok(await lit('panoramax'), 'Panoramax alone is lit');
+            await waitForCoverage(page);
+            const u = await ui();
+            assert.equal(u.keyRequired, false);
+            assert.deepEqual(u.filterControls, { pano: true, since: true });
+            assert.equal(
+              await page.$eval(pnxChip, (chip) =>
+                chip.style.getPropertyValue('--chip-color'),
+              ),
+              '#ff6f00',
+            );
+            assert.match(
+              await page.$eval('#sl-coverage-meta', (node) => node.textContent),
+              /sequences in view · click a line for its nearest photo/,
+            );
+            await page.waitForFunction(
+              () =>
+                document.body.innerHTML.includes('Panoramax</a> contributors'),
+              { timeout: 15_000 },
+            );
+            assert.ok(
+              await settle(page, () =>
+                (new URLSearchParams(location.hash.slice(1)).get('lo') || '')
+                  .split('_')
+                  .some(
+                    (entry) =>
+                      entry.startsWith('0.') && entry.includes('panoramax-1'),
+                  ),
+              ),
+              `the share link lights Panoramax: ${await page.evaluate(() => location.hash)}`,
+            );
+          },
+        );
+        await step(
+          'Panoramax: a click on a line opens that sequence’s picture nearest the click, camera still, with author and licence, cones and ›',
+          async ({ skip }) => {
+            // Points on the street: the fixture's, or live pictures there.
+            let points = null;
+            if (fixtures)
+              points = Array.from({ length: 9 }, (_, i) => [
+                PNX_LINE.west +
+                  ((i + 2) / 13) * (PNX_LINE.east - PNX_LINE.west),
+                PNX_LINE.lat,
+              ]);
+            else {
+              const near = await fetch(
+                `https://api.panoramax.xyz/api/search?place_position=${PNX_PARK.lon},${PNX_PARK.lat}&place_distance=0-150&place_fov_tolerance=180&limit=12`,
+              )
+                .then((r) => r.json())
+                .catch(() => null);
+              points = near?.features?.map((f) => f.geometry.coordinates);
+              if (!points?.length)
+                return skip('no Panoramax picture near the park');
+            }
+            const handle = await page
+              .waitForFunction(
+                findPickPoint,
+                { timeout: 60_000, polling: 500 },
+                {
+                  prefix: 'pnx:seq:',
+                  id: null,
+                  points,
+                  billboardIds: null,
+                },
+              )
+              .catch(() => null);
+            if (!handle && !fixtures) return skip('no Panoramax line in view');
+            assert.ok(handle, 'a Panoramax line is pickable');
+            let at = await handle.jsonValue();
+            if (fixtures) {
+              // Click the top line where the other sequence's pictures are:
+              // the nearest picture is then the other's, and only the line
+              // click's own-sequence lookup opens the clicked line's.
+              const others = panoramaxPictures()
+                .filter((p) => p.sequenceId !== at.id)
+                .slice(40, 100)
+                .map((p) => [p.lon, p.lat]);
+              const aimed = await page
+                .waitForFunction(
+                  findPickPoint,
+                  { timeout: 60_000, polling: 500 },
+                  {
+                    prefix: 'pnx:seq:',
+                    id: at.id,
+                    points: others,
+                    billboardIds: null,
+                  },
+                )
+                .catch(() => null);
+              assert.ok(
+                aimed,
+                'the line is pickable over the other’s pictures',
+              );
+              at = await aimed.jsonValue();
+            }
+            const parked = await camera();
+            await page.mouse.click(at.x, at.y);
+            await page.waitForFunction(
+              () => {
+                const s = window.__godsEyeView.dataManager.layers
+                  .get('street-level')
+                  .module.getUIState().street;
+                return (s.imageId && !s.loading) || s.error;
+              },
+              { timeout: 60_000 },
+            );
+            const street = (await ui()).street;
+            assert.equal(street.error, null, `viewer error: ${street.error}`);
+            assert.equal(street.providerId, 'panoramax');
+            assert.equal(
+              street.sequenceId,
+              at.id,
+              'the picture is from the line clicked',
+            );
+            assert.ok(street.license, 'the caption names the licence');
+            assert.match(
+              street.externalUrl,
+              /^https:\/\/api\.panoramax\.xyz\/#pic=/,
+            );
+            await sleep(1500);
+            const now = await camera();
+            assert.ok(
+              Math.abs(now.lon - parked.lon) < 1e-6 &&
+                Math.abs(now.lat - parked.lat) < 1e-6 &&
+                Math.abs(now.height - parked.height) < 0.5,
+              `the camera did not move: ${JSON.stringify({ parked, now })}`,
+            );
+            if (fixtures) {
+              const caption = await page.$eval(
+                '#sl-image-by',
+                (node) => node.textContent,
+              );
+              if (street.sequenceId === PNX_SEQUENCES[0])
+                assert.equal(caption, `Image by ${PNX_CREATOR} · CC BY-SA 4.0`);
+              else
+                assert.equal(
+                  caption,
+                  'via panoramax.openstreetmap.fr · Licence Ouverte 2.0',
+                  'an account named by an email address is not shown; the instance is',
+                );
+              const pictures = panoramaxPictures().filter(
+                (p) => p.sequenceId === street.sequenceId,
+              );
+              assert.ok(
+                await uiUntil(
+                  (u, want) =>
+                    u.sequence.selectedId === want &&
+                    !u.sequence.loading &&
+                    u.sequence.images > 0,
+                  street.sequenceId,
+                  { timeout: 30_000 },
+                ),
+                `cones along the sequence: ${JSON.stringify((await ui()).sequence)}`,
+              );
+              assert.ok((await ui()).sequence.images <= pictures.length);
+            }
+            const before = street.imageId;
+            await clickPanelControl(page, '.sl-photo-step-next');
+            assert.ok(
+              await uiUntil(
+                (u, was) =>
+                  u.street.imageId &&
+                  u.street.imageId !== was &&
+                  !u.street.loading &&
+                  !u.street.error,
+                before,
+                { timeout: 30_000 },
+              ),
+              '› opened the next picture',
+            );
+            const after = (await ui()).street;
+            assert.equal(after.sequenceId, street.sequenceId);
+            if (fixtures) {
+              const all = panoramaxPictures();
+              const from = all.find((p) => p.id === before);
+              assert.equal(
+                after.imageId,
+                all.find(
+                  (p) =>
+                    p.sequenceId === from.sequenceId &&
+                    p.index === from.index + 1,
+                ).id,
+                '› followed the picture’s next link',
+              );
+            }
+          },
+        );
+        if (fixtures)
+          await step(
+            'Panoramax: a 360° picture opens on the panorama without FIT / FILL, drags, and EXPAND fetches its original once',
+            async () => {
+              const pano = panoramaxPictures().find((p) => p.isPano);
+              await module('openImage', 'panoramax', pano.id);
+              assert.ok(
+                await uiUntil(
+                  (u, want) =>
+                    u.street.imageId === want &&
+                    !u.street.loading &&
+                    u.street.isPano,
+                  pano.id,
+                  { timeout: 60_000 },
+                ),
+                `the panorama opened: ${JSON.stringify((await ui()).street)}`,
+              );
+              const u = await ui();
+              assert.equal(u.street.renderModes, false, 'no frame to fit');
+              const box = await page.$eval('.sl-photo-pano', (canvas) => {
+                const r = canvas.getBoundingClientRect();
+                return { x: r.x + r.width / 2, y: r.y + r.height / 2 };
+              });
+              const bearing = u.street.bearing;
+              await page.mouse.move(box.x, box.y);
+              await page.mouse.down();
+              for (let i = 1; i <= 8; i++)
+                await page.mouse.move(box.x - i * 15, box.y);
+              await page.mouse.up();
+              assert.ok(
+                await uiUntil((v, was) => v.street.bearing !== was, bearing),
+                'dragging the panorama turned its bearing',
+              );
+              assert.equal(panoramaxHdDownloads(), 0, 'docked: SD only');
+              await clickPanelControl(page, '#sl-viewer-expand');
+              assert.ok(
+                await settle(page, () =>
+                  Boolean(document.querySelector('.sl-viewer-wrap-expanded')),
+                ),
+                'the viewer expanded',
+              );
+              const deadline = Date.now() + 30_000;
+              while (panoramaxHdDownloads() === 0 && Date.now() < deadline)
+                await sleep(250);
+              await sleep(2000);
+              assert.equal(
+                panoramaxHdDownloads(),
+                1,
+                'the original, once, for the expanded viewer',
+              );
+              await page.keyboard.press('Escape');
+            },
+          );
+        else
+          await skipStep(
+            'fixtures only',
+            'Panoramax: a 360° picture opens on the panorama without FIT / FILL, drags, and EXPAND fetches its original once',
+          );
+      } finally {
+        await module('closeViewer');
+        await clickPanelControl(
+          page,
+          '#sl-provider-chips [data-chip-id="mapillary"]',
+        );
+        assert.ok(await lit('mapillary'), 'Mapillary is lit again');
+        await setStack(original);
+      }
+    }
+
     async function keyedSteps() {
       // A late startup flight only shows itself by moving the camera, so park
       // and check it stays put rather than reading a state.
@@ -2549,6 +2915,7 @@ async function main() {
         },
       );
       await kartaViewSteps();
+      await panoramaxSteps();
       await step(
         'a reload with the layer on keeps a collapsed panel collapsed, and the share link carries its ui token',
         async () => {
@@ -2632,7 +2999,7 @@ async function main() {
         );
       if (fixtures)
         await step(
-          'every Mapillary and KartaView request was answered from a fixture',
+          'every Mapillary, KartaView and Panoramax request was answered from a fixture',
           () => {
             console.log(
               `  (answered: ${[...fixture.calls].sort().join(' | ')})`,

scripts/track-regression.mjs

@@ -443,7 +443,10 @@ async function main() {
         // for nearby names. Answer both with empty results: the entity-context
         // assertions are about the SELECTED contact, and a live lookup would
         // make the run non-hermetic (and bill the owner's Google quota).
-        if (url.hostname === 'maps.googleapis.com' && url.pathname.startsWith('/maps/api/geocode')) {
+        if (
+          isAppRequest &&
+          (url.pathname === '/api/google/reverse-geocode' || url.pathname === '/api/google/geocode')
+        ) {
           return Promise.resolve(jsonResponse({ status: 'ZERO_RESULTS', results: [] }));
         }
         if (isAppRequest && url.pathname === '/api/google/nearby-places') {

server/providers/aircraft/adsb-lol.js

@@ -1,3 +1,5 @@
+import { readResponseTextCapped } from '../common/http.js';
+
 /**
  * Vite plugin: adsb.lol military aircraft proxy with 12 s response cache.
  *
@@ -25,6 +27,10 @@ export function adsbLolProxy() {
   let _cooldownStatus = 0;
   /** Response cache TTL (ms). */
   const CACHE_MS = 12000;
+  /** Upstream deadline (ms); the fetch previously had none and could hang a poll. */
+  const UPSTREAM_TIMEOUT_MS = 12000;
+  /** /v2/mil measures ~67 KB; a relayed error page is bounded by the same cap. */
+  const ADSBLOL_MIL_MAX_RESPONSE_BYTES = 8 * 1024 * 1024;
   /** Cooldown after a 429 when upstream sends no usable Retry-After (ms). */
   const RATE_LIMIT_COOLDOWN_MS = 30000;
   /** Cooldown after a 5xx (ms). */
@@ -98,11 +104,17 @@ export function adsbLolProxy() {
           );
           return;
         }
+        const signal = AbortSignal.timeout(UPSTREAM_TIMEOUT_MS);
         const upstream = await fetch('https://api.adsb.lol/v2/mil', {
           headers: { 'User-Agent': 'gods-eye-view-adsblol-proxy/1.0' },
+          signal,
         });
         if (upstream.ok) {
-          const body = await upstream.text();
+          const body = await readResponseTextCapped(
+            upstream,
+            ADSBLOL_MIL_MAX_RESPONSE_BYTES,
+            signal,
+          );
           _cache = body;
           _cacheAt = Date.now();
           _cooldownUntil = 0;
@@ -129,7 +141,11 @@ export function adsbLolProxy() {
             return;
           }
         }
-        const body = await upstream.text();
+        const body = await readResponseTextCapped(
+          upstream,
+          ADSBLOL_MIL_MAX_RESPONSE_BYTES,
+          signal,
+        );
         serve(
           res,
           upstream.status,

server/providers/aircraft/enrichment.js

@@ -1,5 +1,9 @@
 import path from 'node:path';
 import { promises as fsp } from 'node:fs';
+import { readResponseJsonCapped } from '../common/http.js';
+
+/** Route and aircraft lookups are a few hundred bytes; 1 MiB is a hard bound. */
+const ADSBDB_MAX_RESPONSE_BYTES = 1024 * 1024;
 /**
  * adsbdb.com enrichment proxy: callsign → route (airline + origin/destination
  * airports) and hex → aircraft type/registration. Free community API — cached
@@ -80,12 +84,16 @@ export function adsbdbProxy() {
               kind === 'route'
                 ? `https://api.adsbdb.com/v0/callsign/${encodeURIComponent(key)}`
                 : `https://api.adsbdb.com/v0/aircraft/${encodeURIComponent(key)}`;
-            const res = await fetch(url, { signal: AbortSignal.timeout(8000) });
+            const signal = AbortSignal.timeout(8000);
+            const res = await fetch(url, { signal });
             if (res.ok) {
+              const payload = await readResponseJsonCapped(
+                res,
+                ADSBDB_MAX_RESPONSE_BYTES,
+                signal,
+              );
               const data =
-                kind === 'route'
-                  ? parseRoute(await res.json())
-                  : parseAircraft(await res.json());
+                kind === 'route' ? parseRoute(payload) : parseAircraft(payload);
               store[key] = { at: Date.now(), data }; // data may be null — negative cache
               dirty = true;
               return data;

server/providers/aircraft/opensky.js

@@ -2,6 +2,7 @@ import { normalizeAdsbLolPointResponse } from '../../../src/data/adsbLolFallback
 import {
   coalesceProxyRequest,
   readResponseJsonCapped,
+  readResponseTextCapped,
 } from '../common/http.js';
 import { requiredFiniteQueryNumber } from '../common/query.js';
 // ---------------------------------------------------------------------------
@@ -29,11 +30,34 @@ const OPENSKY_CACHE_MS = 9000;
 const OPENSKY_ATTEMPT_TIMEOUT_MS = 10_000;
 const OPENSKY_STATES_URL =
   'https://opensky-network.org/api/states/all?extended=1';
+/** states/all?extended=1 measures ~0.8 MB anonymously; bounded, not budgeted. */
+const OPENSKY_STATES_MAX_RESPONSE_BYTES = 8 * 1024 * 1024;
+
+/**
+ * Credit-governor cooldown for a 429: OpenSky's retry-after bounded to
+ * 30 s … 30 min, or 2 min when the header is absent.
+ * @param {Response} upstream Rate-limited response.
+ * @returns {number} Cooldown (ms).
+ */
+function openSkyRateLimitCooldownMs(upstream) {
+  // headers.get() gives null when absent, and Number(null) is 0, not NaN.
+  const header = upstream.headers.get('x-rate-limit-retry-after-seconds');
+  const retryAfterSec =
+    header == null || header.trim() === '' ? NaN : Number(header);
+  return Math.min(
+    Math.max(
+      Number.isFinite(retryAfterSec) ? retryAfterSec * 1000 : 120_000,
+      30_000,
+    ),
+    30 * 60_000,
+  );
+}
 
 /**
  * Fetch and read the global snapshot, giving each attempt
  * OPENSKY_ATTEMPT_TIMEOUT_MS and retrying once when an attempt times out or
- * the connection fails. A second failure throws, which the proxy answers
+ * the connection fails. An oversized body is not retried: it would fail again
+ * and spend more credits. A second failure throws, which the proxy answers
  * from its stale cache or the regional fallback.
  * @param {Record<string, string>} headers Request headers.
  * @returns {Promise<{upstream: Response, body: string}>}
@@ -41,13 +65,27 @@ const OPENSKY_STATES_URL =
 async function fetchOpenSkyStates(headers) {
   for (let attempt = 1; ; attempt++) {
     try {
-      const upstream = await fetch(OPENSKY_STATES_URL, {
-        headers,
-        signal: AbortSignal.timeout(OPENSKY_ATTEMPT_TIMEOUT_MS),
-      });
-      return { upstream, body: await upstream.text() };
+      const signal = AbortSignal.timeout(OPENSKY_ATTEMPT_TIMEOUT_MS);
+      const upstream = await fetch(OPENSKY_STATES_URL, { headers, signal });
+      if (upstream.status === 429) {
+        // Start the cooldown from the headers and drop the rejected body
+        // unread, so a stalled or oversized 429 body cannot skip it.
+        _openskyCooldownUntil =
+          Date.now() + openSkyRateLimitCooldownMs(upstream);
+        void upstream.body?.cancel().catch(() => {});
+        return {
+          upstream,
+          body: JSON.stringify({ error: 'OpenSky rate limited.' }),
+        };
+      }
+      const body = await readResponseTextCapped(
+        upstream,
+        OPENSKY_STATES_MAX_RESPONSE_BYTES,
+        signal,
+      );
+      return { upstream, body };
     } catch (error) {
-      if (attempt >= 2) throw error;
+      if (attempt >= 2 || error?.code === 'RESPONSE_TOO_LARGE') throw error;
       console.warn(
         '[OpenSky] global snapshot attempt failed, retrying:',
         error?.message || error,
@@ -544,19 +582,9 @@ export function openSkyProxy() {
         }
         if (upstream.status === 429) {
           reason = 'rate_limited';
-          // Credit governor: honor OpenSky's retry-after (bounded 30 s … 30 min;
-          // 2 min when the header is absent) — no upstream attempts until then.
-          const retryAfterSec = Number(
-            upstream.headers.get('x-rate-limit-retry-after-seconds'),
-          );
-          const cooldownMs = Math.min(
-            Math.max(
-              Number.isFinite(retryAfterSec) ? retryAfterSec * 1000 : 120_000,
-              30_000,
-            ),
-            30 * 60_000,
-          );
-          _openskyCooldownUntil = now + cooldownMs;
+          // Credit governor: fetchOpenSkyStates already started the cooldown
+          // from OpenSky's retry-after — no upstream attempts until then.
+          const cooldownMs = openSkyRateLimitCooldownMs(upstream);
           // Serve the last-good body instead of the 429 when we have one —
           // the layer keeps rendering (STALE-cued) instead of dying.
           if (_openskyCacheBody && _openskyCacheStatus === 200) {

server/providers/firms.js

@@ -2,6 +2,7 @@ import path from 'node:path';
 import { promises as fsp } from 'node:fs';
 
 import { filterTrailing24h, parseFirmsCsv } from '../../src/data/firmsCsv.js';
+import { readResponseTextCapped } from './common/http.js';
 
 /**
  * NASA FIRMS live active-fire proxy with a memory + disk cache.
@@ -35,6 +36,12 @@ export function firmsProxy() {
     'VIIRS_SNPP_NRT',
     'MODIS_NRT',
   ];
+  /**
+   * Per-source body cap. A VIIRS world/2 pull is ~130k rows x ~100 B, about
+   * 13 MB per satellite in heavy fire season (MODIS runs smaller), so this is a
+   * bound, not a budget.
+   */
+  const FIRMS_MAX_RESPONSE_BYTES = 64 * 1024 * 1024;
   const CACHE_DIR = path.join(process.cwd(), '.gev-cache');
   const CACHE_PATH = path.join(CACHE_DIR, 'firms.json');
 
@@ -83,9 +90,12 @@ export function firmsProxy() {
    */
   async function fetchSource(key, source) {
     const url = `https://firms.modaps.eosdis.nasa.gov/api/area/csv/${encodeURIComponent(key)}/${source}/world/2`;
-    const res = await fetch(url, { signal: AbortSignal.timeout(60_000) });
+    const signal = AbortSignal.timeout(60_000);
+    const res = await fetch(url, { signal });
     if (!res.ok) throw new Error(`HTTP ${res.status}`);
-    const records = parseFirmsCsv(await res.text());
+    const records = parseFirmsCsv(
+      await readResponseTextCapped(res, FIRMS_MAX_RESPONSE_BYTES, signal),
+    );
     if (records === null) throw new Error('non-CSV upstream response');
     return records;
   }

server/providers/gbfs.js

@@ -3,6 +3,7 @@ import {
   isAllowedGbfsHost,
   isAllowedGbfsPath,
   gbfsCacheControl,
+  gbfsUpstreamHeaders,
 } from '../../src/data/gbfsSource.js';
 
 // ---------------------------------------------------------------------------
@@ -11,6 +12,9 @@ import {
 /** Upstream fetch timeout for GBFS requests (ms). */
 const GBFS_PROXY_TIMEOUT_MS = 12000;
 
+/** Value of the Client-Identifier header sent with every upstream request. */
+export const GBFS_CLIENT_IDENTIFIER = 'gods-eye-view';
+
 export const GBFS_MAX_BODY_BYTES = 5 * 1024 * 1024; // 5 MB
 
 function gbfsRedirectHost(location, requestUrl) {
@@ -60,6 +64,10 @@ export async function fetchGbfsUpstream(
       headers: {
         Accept: 'application/json',
         'User-Agent': 'gods-eye-view-gbfs-proxy/1.0',
+        // Urban Sharing (the Norwegian city-bike feeds) asks every client to
+        // name itself in this header; other operators ignore it.
+        'Client-Identifier': GBFS_CLIENT_IDENTIFIER,
+        ...gbfsUpstreamHeaders(new URL(url).hostname),
       },
       redirect: 'manual',
       signal: controller.signal,
@@ -181,7 +189,7 @@ export function gbfsProxy() {
           return;
         }
 
-        if (!isAllowedGbfsPath(upstreamUrl.pathname)) {
+        if (!isAllowedGbfsPath(upstreamUrl.pathname, upstreamUrl.hostname)) {
           res.writeHead(400, {
             'Content-Type': 'application/json',
             'Cache-Control': 'no-store',

server/providers/gnssIntegrity.js

@@ -0,0 +1,238 @@
+import {
+  GNSS_CLASSIFIER,
+  GNSS_WINDOW_MS,
+  normalizeGnssAircraft,
+} from '../../src/layers/gnss/records.js';
+import { adsbLolFallbackAnchor } from './aircraft/opensky.js';
+import { coalesceProxyRequest, readResponseJsonCapped } from './common/http.js';
+import { makeRateLimiter, clientKey } from './common/rate-limit.js';
+
+// adsb.lol regional snapshot (keyless, ODbL). Only the integrity fields the
+// GNSS layer needs leave this proxy, so the browser never sees the full feed.
+// This is a separate read from the flights fallback on purpose: that point
+// cache keeps only the fields the flights layer renders (no nic / nac_p), is
+// keyed on 0.25° anchors and lives for 12 s, while integrity cells need
+// whole-degree anchors held for a minute.
+const RADIUS_NM = 250;
+const CACHE_MS = 60_000;
+const CACHE_MAX = 64;
+/** Default 429 cooldown when upstream sends no usable Retry-After. */
+const COOLDOWN_MS = 60_000;
+/** Bound sane upstream deadlines to one hour; never shorten a deadline within that range. */
+const COOLDOWN_MIN_MS = 5_000;
+const COOLDOWN_MAX_MS = 60 * 60_000;
+const FAILURE_COOLDOWN_MS = 15_000;
+const MAX_IN_FLIGHT = 8;
+const MAX_RESPONSE_BYTES = 8 * 1024 * 1024;
+const TIMEOUT_MS = 10_000;
+
+/** Snap a view anchor to a whole degree so nearby views share one upstream read. */
+export function gnssIntegrityAnchor(url) {
+  const anchor = adsbLolFallbackAnchor({ url });
+  if (!anchor) return null;
+  return {
+    lat: Math.round(anchor.latitude),
+    lon: Math.round(anchor.longitude),
+  };
+}
+
+/** Cooldown (ms) an upstream 429 earns, honouring Retry-After when sane. */
+export function gnssRetryCooldownMs(raw, nowMs) {
+  if (raw) {
+    const seconds = /^\d+(?:\.\d+)?$/.test(raw.trim()) ? Number(raw) : NaN;
+    const ms = seconds * 1000;
+    if (Number.isFinite(seconds) && seconds > 0)
+      return Math.min(COOLDOWN_MAX_MS, Math.max(COOLDOWN_MIN_MS, ms));
+    const at =
+      Number.isNaN(seconds) && /[a-z]/i.test(raw) ? Date.parse(raw) : NaN;
+    if (Number.isFinite(at) && at > nowMs)
+      return Math.min(COOLDOWN_MAX_MS, Math.max(COOLDOWN_MIN_MS, at - nowMs));
+  }
+  return COOLDOWN_MS;
+}
+
+/** Fixed-origin, bounded adsb.lol integrity route for dev and preview. */
+export function gnssIntegrityProxy({
+  fetchImpl = (...args) => globalThis.fetch(...args),
+  now = () => Date.now(),
+  monotonicNow = () => performance.now(),
+  warn = (...args) => console.warn(...args),
+} = {}) {
+  const cache = new Map();
+  const inFlight = new Map();
+  const allow = makeRateLimiter({ windowMs: 60_000, max: 30, globalMax: 600 });
+  let cooldownUntil = 0;
+  let cooldownStatus = 429;
+
+  async function load({ lat, lon }) {
+    if (monotonicNow() < cooldownUntil)
+      throw Object.assign(new Error('cooling_down'), {
+        status: cooldownStatus,
+      });
+    const signal = AbortSignal.timeout(TIMEOUT_MS);
+    try {
+      const response = await fetchImpl(
+        `https://api.adsb.lol/v2/lat/${lat}/lon/${lon}/dist/${RADIUS_NM}`,
+        {
+          signal,
+          redirect: 'error',
+          headers: {
+            Accept: 'application/json',
+            'User-Agent': 'gods-eye-view-gnss-integrity/1.0',
+          },
+        },
+      );
+      if (!response.ok) {
+        await response.body?.cancel();
+        if (response.status === 429) {
+          const at = monotonicNow();
+          const raw = response.headers.get('retry-after');
+          const delay = gnssRetryCooldownMs(raw, now());
+          if (delay === COOLDOWN_MAX_MS)
+            warn('[gnss-integrity] upstream cooldown capped at one hour');
+          cooldownStatus = 429;
+          cooldownUntil = Math.max(cooldownUntil, at + delay);
+          throw Object.assign(new Error('upstream_rate_limited'), {
+            status: 429,
+          });
+        }
+        throw new Error('upstream_unavailable');
+      }
+      const payload = await readResponseJsonCapped(
+        response,
+        MAX_RESPONSE_BYTES,
+        signal,
+      );
+      const rows = normalizeGnssAircraft(payload);
+      if (!rows) throw new Error('invalid_snapshot');
+      const sourceNow = payload.now;
+      if (!Number.isFinite(sourceNow) || sourceNow <= 0)
+        throw new Error('undated_snapshot');
+      const fetchedAt = Math.min(
+        now(),
+        sourceNow > 10_000_000_000 ? sourceNow : sourceNow * 1000,
+      );
+      if (now() - fetchedAt > GNSS_WINDOW_MS)
+        throw new Error('expired_snapshot');
+      return {
+        fetchedAt,
+        anchor: { lat, lon },
+        radiusNm: RADIUS_NM,
+        // `degraded` on each row is this classifier's verdict, not gpsjam's.
+        classifier: GNSS_CLASSIFIER.id,
+        rows,
+      };
+    } catch (error) {
+      if (error.status !== 429) {
+        const until = monotonicNow() + FAILURE_COOLDOWN_MS;
+        if (until > cooldownUntil) {
+          cooldownUntil = until;
+          cooldownStatus = 502;
+        }
+      }
+      throw error;
+    }
+  }
+
+  function age(entry) {
+    if (!entry) return Infinity;
+    const elapsed = monotonicNow() - entry.savedAt;
+    // A backwards injected clock cannot rejuvenate a snapshot.
+    return elapsed < 0 ? Infinity : entry.ageAtReceipt + elapsed;
+  }
+
+  async function acquire(anchor, peer) {
+    const key = `${anchor.lat},${anchor.lon}`;
+    const previous = cache.get(key);
+    if (age(previous) < CACHE_MS)
+      return { value: previous.value, ageMs: age(previous), stale: false };
+    try {
+      if (!inFlight.has(key) && inFlight.size >= MAX_IN_FLIGHT)
+        throw Object.assign(new Error('busy'), { status: 429, local: true });
+      const { promise } = coalesceProxyRequest(inFlight, key, async () => {
+        if (monotonicNow() >= cooldownUntil && !allow(peer))
+          throw Object.assign(new Error('rate_limited'), {
+            status: 429,
+            local: true,
+          });
+        const value = await load(anchor);
+        const entry = {
+          value,
+          savedAt: monotonicNow(),
+          ageAtReceipt: Math.max(0, now() - value.fetchedAt),
+        };
+        cache.delete(key);
+        cache.set(key, entry);
+        while (cache.size > CACHE_MAX) cache.delete(cache.keys().next().value);
+        return entry;
+      });
+      const entry = await promise;
+      const ageMs = age(entry);
+      return { value: entry.value, ageMs, stale: ageMs >= CACHE_MS };
+    } catch (error) {
+      if (age(previous) <= GNSS_WINDOW_MS)
+        return { value: previous.value, ageMs: age(previous), stale: true };
+      throw error;
+    }
+  }
+
+  async function handler(req, res) {
+    const json = (status, value, stale = false, retryAfterS = 60) => {
+      if (res.destroyed) return;
+      res.writeHead(status, {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'no-store',
+        ...(status === 405 ? { Allow: 'GET' } : {}),
+        ...([429, 502].includes(status)
+          ? { 'Retry-After': String(retryAfterS) }
+          : {}),
+        ...(stale ? { 'X-Data-Stale': 'true' } : {}),
+      });
+      res.end(JSON.stringify(value));
+    };
+    if (req.method !== 'GET') return json(405, { error: 'method_not_allowed' });
+    const path = (req.url || '/').split('?')[0];
+    if (path !== '/' && path !== '')
+      return json(404, { error: 'unknown_route' });
+    const anchor = gnssIntegrityAnchor(req.url);
+    if (!anchor) return json(400, { error: 'invalid_anchor' });
+    try {
+      const { value, stale, ageMs } = await acquire(anchor, clientKey(req));
+      // ageMs is measured on this server's clock, so the browser can date
+      // the rows without comparing its clock to ours.
+      json(200, { ...value, ageMs, ...(stale ? { stale: true } : {}) }, stale);
+    } catch (error) {
+      if (error.status === 429) {
+        // Tell the browser how long the shared upstream cooldown has left.
+        const retryAfterS = Math.max(
+          1,
+          error.local ? 60 : Math.ceil((cooldownUntil - monotonicNow()) / 1000),
+        );
+        return json(
+          429,
+          {
+            error: error.local ? error.message : 'gnss_integrity_rate_limited',
+          },
+          false,
+          retryAfterS,
+        );
+      }
+      json(
+        502,
+        { error: 'gnss_integrity_unavailable' },
+        false,
+        Math.max(1, Math.ceil((cooldownUntil - monotonicNow()) / 1000)),
+      );
+    }
+  }
+
+  return {
+    name: 'gnss-integrity',
+    configureServer({ middlewares }) {
+      middlewares.use('/api/gnss-integrity', handler);
+    },
+    configurePreviewServer({ middlewares }) {
+      middlewares.use('/api/gnss-integrity', handler);
+    },
+  };
+}

server/providers/local.js

@@ -24,6 +24,7 @@ import { mapillaryProxy } from './mapillary.js';
 import { keySetupEndpoint } from '../standalone/key-setup.js';
 import { weatherProxy } from './weather.js';
 import { firePerimetersProxy } from './firePerimeters.js';
+import { gnssIntegrityProxy } from './gnssIntegrity.js';
 import { cycloneProxy } from './cyclones.js';
 import { windProxy } from './wind.js';
 
@@ -60,6 +61,7 @@ function localProviderPlugins({ realtime } = {}) {
     cycloneProxy(),
     mapillaryProxy(),
     firePerimetersProxy(),
+    gnssIntegrityProxy(),
     keySetupEndpoint(),
   ];
 }
@@ -81,6 +83,9 @@ export { LL2_CACHE_TTL_MS, launchLibraryRequestHeaders } from './space.js';
 export { googlePlacesContextProxy } from './places.js';
 export { googleServerApiKey } from './places.js';
 export { keylessGooglePlacesResponse } from './places.js';
+export { keylessGoogleGeocodeResponse } from './places.js';
+export { validateGeocodeAddress } from './places.js';
+export { geocodeBounds } from './places.js';
 export { adsbLolFallbackAnchor } from './aircraft/opensky.js';
 export { readResponseTextCapped } from './common/http.js';
 export { readResponseJsonCapped } from './common/http.js';

server/providers/military-installations.js

@@ -9,7 +9,10 @@ import {
   fetchOverpassPayload,
   overpassNotConfigured,
 } from './overpass/transport.js';
-import { resolveOverpassUpstreams } from './overpass/constants.js';
+import {
+  resolveOverpassUpstreams,
+  resolveOverpassUpstreamTag,
+} from './overpass/constants.js';
 import {
   _militaryInstallationCache,
   trimMilitaryInstallationCache,
@@ -74,7 +77,13 @@ function militaryInstallationsProxy() {
       retrievedAt: new Date().toISOString(),
       status: 'ready',
     };
-    const entry = { payload, cachedAt: Date.now() };
+    // Tagged with the configured upstream set so the disk layer does not serve
+    // this answer back after the operator repoints (see overpass/cache.js).
+    const entry = {
+      payload,
+      cachedAt: Date.now(),
+      upstreams: resolveOverpassUpstreamTag(),
+    };
     _militaryInstallationCache.set(key, entry);
     trimMilitaryInstallationCache();
     writeMilitaryInstallationDisk(key, entry);

server/providers/military-installations/cache.js

@@ -5,6 +5,7 @@ import {
   MILITARY_INSTALLATION_DISK_DIR,
   MILITARY_INSTALLATION_MAX_CACHE,
 } from './constants.js';
+import { cachedByConfiguredUpstream } from '../overpass/constants.js';
 import path from 'node:path';
 import { createHash } from 'node:crypto';
 import { promises as fsp } from 'node:fs';
@@ -114,6 +115,9 @@ async function readMilitaryInstallationDisk(
     const entry = JSON.parse(
       await fsp.readFile(militaryInstallationDiskPath(cacheKey, dir), 'utf8'),
     );
+    // Same reason as the Overpass disk cache: the key is the bbox alone, so an
+    // entry written against a different OVERPASS_UPSTREAMS is otherwise a hit.
+    if (!cachedByConfiguredUpstream(entry)) return null;
     if (!militaryInstallationDiskFresh(entry, maxAgeMs)) return null;
     return migrateMilitaryInstallationEntry(entry);
   } catch {

server/providers/openai/toolDescriptions.js

@@ -179,7 +179,7 @@ export const ACTION_DESCRIPTIONS = {
   },
   get_current_view_state: {
     description:
-      'Read the current camera, style, Context, Cockpit, HUD, detection, map stack, post-processing, scene-playback, tracked-entity, and layer state before choosing another action.',
+      'Read the current camera, style, Context, Cockpit, HUD, detection, map stack, post-processing, scene-playback, tracked-entity, and layer state before choosing another action. Tracked aircraft emergency status is a crowd-sourced transponder broadcast, not a confirmed incident: quote emergencyBroadcast and never infer a hijack or an incident ending from a code change.',
     $position: 1,
   },
   set_hud: {
@@ -543,7 +543,7 @@ export const ACTION_DESCRIPTIONS = {
   },
   analyst_query: {
     description:
-      'Counts, lists, superlatives and attribute filters over records loaded by ENABLED layers — "how many flights over Texas", "biggest fire near LA", "ships headed to Oakland", "next rocket launch". A requested list or ranking requires this tool even after set_context_mode returned a Contacts count; that count alone has no requested items. complete:false means the count is a floor ("at least") and rankings cover the records examined; partial names unanswered layers. Items carry lat/lon for a follow-up fly_to_location. ok:false codes: LAYER_OFF (offer to enable), NOT_READY (loading), FOLLOW_UP_MISMATCH (ask again without followUp), UNKNOWN_FIELD/UNKNOWN_SCOPE/BAD_VALUE (retry with the allowed values).',
+      'Counts, lists, superlatives and attribute filters over records loaded by ENABLED layers — "how many flights over Texas", "biggest fire near LA", "ships headed to Oakland", "next rocket launch". A requested list or ranking requires this tool even after set_context_mode returned a Contacts count; that count alone has no requested items. complete:false means the count is a floor ("at least") and rankings cover the records examined; partial names unanswered layers. Items carry lat/lon for a follow-up fly_to_location. ok:false codes: LAYER_OFF (offer to enable), NOT_READY (loading), FOLLOW_UP_MISMATCH (ask again without followUp), UNKNOWN_FIELD/UNKNOWN_SCOPE/BAD_VALUE (retry with the allowed values). Aircraft emergency fields describe broadcasts, not confirmed incidents: narrate emergencyBroadcast with emergencySource. emergencyKind values are general, unlawful, nordo, downed, minfuel and lifeguard; GEV treats the last two as priorities (emergency:false). lastContactAtMs says when the transponder was last heard, not when the status arrived.',
     $position: 1,
     parameters: {
       properties: {

server/providers/overpass/cache.js

@@ -5,6 +5,7 @@ import {
   OVERPASS_DISK_DIR,
   OVERPASS_CACHE_MS,
   OVERPASS_CACHE_MAX_ENTRIES,
+  cachedByConfiguredUpstream,
 } from './constants.js';
 import path from 'node:path';
 import { createHash } from 'node:crypto';
@@ -47,6 +48,11 @@ async function readOverpassDisk(cacheKey, maxAgeMs) {
     // Older versions persisted 4xx refusals with normal data TTLs. Ignore
     // them on both fresh and stale reads so an upgrade can recover immediately.
     if (!overpassPayloadIsData(payload)) return null;
+    // The key is the query alone, so a file written by a different upstream —
+    // including the public instances that were the default before #742 — is a
+    // hit for the same query. Refuse it: the operator's configured instance
+    // must be what answers, on the stale path too.
+    if (!cachedByConfiguredUpstream(payload)) return null;
     if (Date.now() - payload.cachedAt > maxAgeMs) return null;
     return payload;
   } catch {

server/providers/overpass/constants.js

@@ -1,4 +1,5 @@
 import path from 'node:path';
+import { createHash } from 'node:crypto';
 
 // ---------------------------------------------------------------------------
 // Overpass API proxy constants and cache state
@@ -27,16 +28,68 @@ function parseOverpassUpstreams(raw) {
   return endpoints.slice(0, 8);
 }
 
-let upstreamMemo = { raw: null, endpoints: [] };
+let upstreamMemo = { raw: null, endpoints: [], tag: 'none' };
+
+/**
+ * Short, stable identifier for the configured upstream set. Cached responses
+ * carry it so an answer produced by a different instance is not served after
+ * the operator repoints `OVERPASS_UPSTREAMS` — the disk cache outlives the
+ * configuration change by 7 days, a month for boundary queries, and forever on
+ * the serve-stale path. It is a hash, never the URLs, and it is only ever
+ * compared on read: it is not sent to clients and does not appear in errors.
+ */
+function upstreamTag(endpoints) {
+  if (!endpoints.length) return 'none';
+  // Sorted, so reordering the same instances for failover keeps the cache.
+  return createHash('sha256')
+    .update([...endpoints].sort().join('\n'))
+    .digest('hex');
+}
 
 /** Resolve after environment loading. Public Overpass instances are not used by default. */
 function resolveOverpassUpstreams() {
-  const raw = process.env.OVERPASS_UPSTREAMS || '';
-  if (upstreamMemo.raw !== raw)
-    upstreamMemo = { raw, endpoints: parseOverpassUpstreams(raw) };
+  readUpstreamMemo();
   return [...upstreamMemo.endpoints];
 }
 
+/** The configured-upstream tag stored alongside, and checked against, cache entries. */
+function resolveOverpassUpstreamTag() {
+  return readUpstreamMemo().tag;
+}
+
+let reportedForeignCache = false;
+
+/**
+ * Was this cached entry produced by the upstream set configured now?
+ *
+ * With nothing configured there is no instance to contradict, and serving
+ * last-good data at any age is the point of the cache (the proxy's
+ * not-configured path depends on it), so any entry is accepted. Once an
+ * operator does configure an instance, only its own answers are served: an
+ * entry with no tag, or one from a different instance, is refused rather than
+ * matched on the query alone. Shared by both caches fed by these upstreams.
+ */
+function cachedByConfiguredUpstream(entry) {
+  const tag = resolveOverpassUpstreamTag();
+  if (tag === 'none' || entry?.upstreams === tag) return true;
+  if (!reportedForeignCache) {
+    reportedForeignCache = true;
+    console.warn(
+      '[Overpass] ignoring cached responses produced by a different OVERPASS_UPSTREAMS; they will be refetched from the configured instance.',
+    );
+  }
+  return false;
+}
+
+function readUpstreamMemo() {
+  const raw = process.env.OVERPASS_UPSTREAMS || '';
+  if (upstreamMemo.raw !== raw) {
+    const endpoints = parseOverpassUpstreams(raw);
+    upstreamMemo = { raw, endpoints, tag: upstreamTag(endpoints) };
+  }
+  return upstreamMemo;
+}
+
 /**
  * TTL for FRESH cached Overpass responses (ms). Road geometry is static for
  * months — the original 45 s TTL forced a public-mirror round-trip on nearly
@@ -153,6 +206,8 @@ export {
   OVERPASS_MAX_RESPONSE_BYTES,
   parseOverpassUpstreams,
   resolveOverpassUpstreams,
+  resolveOverpassUpstreamTag,
+  cachedByConfiguredUpstream,
   OVERPASS_USER_AGENT,
   OVERPASS_TIMEOUT_MS,
 };

server/providers/overpass/transport.js

@@ -1,6 +1,7 @@
 import {
   OVERPASS_MAX_RESPONSE_BYTES,
   resolveOverpassUpstreams,
+  resolveOverpassUpstreamTag,
   OVERPASS_USER_AGENT,
   OVERPASS_TIMEOUT_MS,
 } from './constants.js';
@@ -187,6 +188,9 @@ async function fetchOverpassPayload(
         contentType: 'application/json',
         // Never retain a secret-bearing endpoint in cache or response metadata.
         endpoint: 'configured',
+        // Which configured instance produced this, as a hash rather than a URL,
+        // so a cached answer is not reused after the operator repoints.
+        upstreams: resolveOverpassUpstreamTag(),
         rateLimited: false,
       };
     } catch {

server/providers/places.js

@@ -1,8 +1,13 @@
 /** Place-search and route middleware for Node development servers. */
-export { googlePlacesContextProxy } from './places/google.js';
+export {
+  googlePlacesContextProxy,
+  validateGeocodeAddress,
+  geocodeBounds,
+} from './places/google.js';
 export {
   googleServerApiKey,
   keylessGooglePlacesResponse,
+  keylessGoogleGeocodeResponse,
 } from './places/google-key.js';
 export { installRouteMiddleware } from './places/routes.js';
 export {

server/providers/places/google-key.js

@@ -14,12 +14,34 @@ export function keylessGooglePlacesResponse(apiKey) {
 }
 
 /**
- * Google API key for the SERVER-SIDE calls (Places nearby/text search, the
- * CCTV Street View fallback). These never reach the browser, so this key can
- * be restricted by server IP and scoped to Places API + Street View Static
- * API — while GOOGLE_MAPS_API_KEY stays referrer-restricted to Map Tiles +
- * Geocoding for the browser (#33). Splitting them is opt-in: unset, this
- * falls back to the shared browser key and nothing changes.
+ * Geocoding speaks Google's own response shape rather than the `places: []`
+ * contract its two siblings use, because the browser adapters read `status`
+ * and `results` directly. The keyless capability reads the same way: a status
+ * that is not `OK` and no results, which the adapters already treat as "this
+ * provider did not answer" and pass to the next geocoder in the chain.
+ */
+export function keylessGoogleGeocodeResponse(apiKey) {
+  if (String(apiKey ?? '').trim()) return null;
+  return {
+    statusCode: 200,
+    payload: {
+      configured: false,
+      status: 'REQUEST_DENIED',
+      results: [],
+      error: null,
+    },
+  };
+}
+
+/**
+ * Google API key for the SERVER-SIDE calls (Places nearby/text search,
+ * geocoding, the CCTV Street View fallback). These never reach the browser, so
+ * this key can be restricted by server IP and scoped to Places API + Geocoding
+ * API + Street View Static API — while GOOGLE_MAPS_API_KEY stays
+ * referrer-restricted to Map Tiles + Maps JavaScript API for the browser
+ * (#33, #363). Splitting them is opt-in: unset, this falls back to the shared
+ * browser key, which then has to carry every API both sides use and cannot
+ * take a referrer restriction.
  */
 export function googleServerApiKey() {
   return resolveGoogleServerKey(process.env);

server/providers/places/google.js

@@ -1,9 +1,11 @@
 import {
   googleServerApiKey,
   keylessGooglePlacesResponse,
+  keylessGoogleGeocodeResponse,
 } from './google-key.js';
 import { makeCostRateLimiter, clientKey } from '../common/rate-limit.js';
 import { admitSameSite } from '../common/same-site.js';
+import { readResponseJsonCapped } from '../common/http.js';
 import {
   projectNearbyPlaces,
   projectTextSearchPlaces,
@@ -25,7 +27,7 @@ let _googleRateLimiter;
  */
 export const GOOGLE_DEFAULT_PER_MIN = 120;
 
-/** Google cost endpoints (nearby-places + text-search). Null only when set to 0. */
+/** Google cost endpoints (nearby-places, text-search, geocoding). Null only when set to 0. */
 function googleRateLimiter() {
   if (_googleRateLimiter === undefined)
     _googleRateLimiter = makeCostRateLimiter(
@@ -56,6 +58,51 @@ export function validatePlacesCoordinates(searchParams) {
   return { ok: true, latitude, longitude };
 }
 
+/** Longest accepted geocoder query. Real place names are far shorter. */
+const GEOCODE_MAX_QUERY = 200;
+
+/**
+ * Upstream deadline and body ceiling for the geocode routes. The deadline stays
+ * armed through body consumption, so a stalled upstream cannot hold a handler
+ * open, and the cap bounds a chunked or length-omitted reply. A geocode answer
+ * is a handful of results; 256 KiB is far above any honest one.
+ */
+const GEOCODE_UPSTREAM_TIMEOUT_MS = 10_000;
+
+const GEOCODE_MAX_RESPONSE_BYTES = 256 * 1024;
+
+/** Validate a free-text geocoder query before consuming request quota. */
+export function validateGeocodeAddress(searchParams) {
+  const address = String(searchParams.get('address') || '').trim();
+  if (!address) return { ok: false, error: 'address is required' };
+  if (address.length > GEOCODE_MAX_QUERY)
+    return { ok: false, error: 'address is too long' };
+  return { ok: true, address };
+}
+
+/**
+ * Validate the optional viewport bias, which Google reads as
+ * `sw_lat,sw_lng|ne_lat,ne_lng`. An unparsed value is dropped rather than
+ * refused: the bias only ranks results, so a malformed one costs relevance,
+ * not an answer.
+ */
+export function geocodeBounds(searchParams) {
+  const raw = String(searchParams.get('bounds') || '').trim();
+  if (!raw) return null;
+  const corners = raw.split('|');
+  if (corners.length !== 2) return null;
+  const parts = corners.flatMap((corner) => corner.split(','));
+  // A blank component must be refused before Number() turns it into 0 and a
+  // half-written corner like `30.4,` reads as the equator.
+  if (parts.length !== 4 || parts.some((part) => !part.trim())) return null;
+  const numbers = parts.map(Number);
+  if (!numbers.every(Number.isFinite)) return null;
+  const [swLat, swLon, neLat, neLon] = numbers;
+  if (Math.abs(swLat) > 90 || Math.abs(neLat) > 90) return null;
+  if (Math.abs(swLon) > 180 || Math.abs(neLon) > 180) return null;
+  return raw;
+}
+
 /** Nearby place labels and view-biased text search, with request-time key resolution. */
 export function googlePlacesContextProxy({
   resolveApiKey = googleServerApiKey,
@@ -293,6 +340,149 @@ export function googlePlacesContextProxy({
         );
       }
     });
+
+    /**
+     * Geocoding belongs on the server, not in the page. Google's Geocoding web
+     * service refuses referrer-restricted keys, so calling it from the browser
+     * forces GOOGLE_MAPS_API_KEY — which ships in the bundle by design — to be
+     * left unrestricted (#363). Here the request carries the server key, and
+     * the browser key no longer needs the Geocoding API at all.
+     *
+     * Unlike the two Places routes above, these answer in Google's own shape
+     * (`status` + `results`) rather than the `places: []` contract: the browser
+     * normalizers read that shape directly, and keeping it means the proxy adds
+     * a hop without adding a translation nobody asked for.
+     */
+    function installGeocodeRoute(path, readQuery) {
+      middlewares.use(path, async (req, res) => {
+        const refuse = (statusCode, error) => {
+          res.statusCode = statusCode;
+          res.setHeader('Content-Type', 'application/json');
+          res.end(
+            JSON.stringify({ status: 'REQUEST_DENIED', results: [], error }),
+          );
+        };
+
+        // Gate first, like the Places routes above: a cross-site caller learns
+        // nothing about this endpoint's method surface.
+        if (admitSameSite(req, res)) return;
+        if (req.method !== 'GET') {
+          refuse(405, 'Method not allowed');
+          return;
+        }
+
+        // A keyless geocode has no provider cost, so it resolves before the
+        // paid-endpoint limiter can consume or exhaust quota (mirrors the
+        // Places routes above).
+        const apiKey = resolveApiKey();
+        const keyless = keylessGoogleGeocodeResponse(apiKey);
+        if (keyless) {
+          res.statusCode = keyless.statusCode;
+          res.setHeader('Content-Type', 'application/json');
+          res.setHeader('Cache-Control', 'no-store');
+          res.end(JSON.stringify(keyless.payload));
+          return;
+        }
+
+        const requestUrl = new URL(req.url || '', 'http://localhost');
+        const query = readQuery(requestUrl.searchParams);
+        if (!query.ok) {
+          refuse(400, query.error);
+          return;
+        }
+
+        // Per-IP throttle (GEV_RATELIMIT_GOOGLE_PER_MIN), shared with the
+        // Places routes because both spend the same Google budget.
+        const _grl = googleRateLimiter();
+        if (_grl && !_grl(clientKey(req))) {
+          res.statusCode = 429;
+          res.setHeader('Content-Type', 'application/json');
+          res.setHeader('Retry-After', '5');
+          res.end(
+            JSON.stringify({
+              status: 'OVER_QUERY_LIMIT',
+              results: [],
+              error: 'Rate limit exceeded',
+            }),
+          );
+          return;
+        }
+
+        try {
+          const upstream = new URL(
+            endpoints.geocode ||
+              'https://maps.googleapis.com/maps/api/geocode/json',
+          );
+          for (const [name, value] of Object.entries(query.params))
+            upstream.searchParams.set(name, value);
+          upstream.searchParams.set('key', apiKey);
+          const deadline = AbortSignal.timeout(GEOCODE_UPSTREAM_TIMEOUT_MS);
+          const response = await fetchImpl(upstream.toString(), {
+            redirect: 'error',
+            signal: deadline,
+          });
+          // An unreadable, oversized or timed-out body is not an answer: it
+          // falls through to the same shaped failure as a refusal below.
+          const data = await readResponseJsonCapped(
+            response,
+            GEOCODE_MAX_RESPONSE_BYTES,
+            deadline,
+          ).catch(() => null);
+
+          // A body we could not read is an upstream failure, not an answer with
+          // a status of its own, so it does not borrow the upstream's code.
+          if (!data) {
+            res.statusCode = 502;
+            res.setHeader('Content-Type', 'application/json; charset=utf-8');
+            res.end(
+              JSON.stringify({
+                status: 'UNKNOWN_ERROR',
+                results: [],
+                error: 'Google Geocoding request failed',
+              }),
+            );
+            return;
+          }
+
+          res.statusCode = response.ok ? 200 : response.status;
+          res.setHeader('Content-Type', 'application/json; charset=utf-8');
+          res.setHeader('Cache-Control', 'private, max-age=300');
+          res.end(JSON.stringify(data));
+        } catch {
+          // Fixed public text: a transport, URL or runtime message would
+          // describe the server to the browser (SECURITY.md, sanitized errors).
+          res.statusCode = 502;
+          res.setHeader('Content-Type', 'application/json; charset=utf-8');
+          res.end(
+            JSON.stringify({
+              status: 'UNKNOWN_ERROR',
+              results: [],
+              error: 'Google Geocoding request failed',
+            }),
+          );
+        }
+      });
+    }
+
+    installGeocodeRoute('/api/google/geocode', (searchParams) => {
+      const address = validateGeocodeAddress(searchParams);
+      if (!address.ok) return address;
+      const bounds = geocodeBounds(searchParams);
+      return {
+        ok: true,
+        params: {
+          address: address.address,
+          ...(bounds ? { bounds } : {}),
+        },
+      };
+    });
+
+    installGeocodeRoute('/api/google/reverse-geocode', (searchParams) => {
+      const coordinates = validatePlacesCoordinates(searchParams);
+      if (!coordinates.ok) return coordinates;
+      const { latitude, longitude } = coordinates;
+      return { ok: true, params: { latlng: `${latitude},${longitude}` } };
+    });
   }
 
   return {

server/providers/radio/transport.js

@@ -1,6 +1,9 @@
 import https from 'node:https';
 import { Readable } from 'node:stream';
 import { isNonGlobalIpv4 } from './stations.js';
+
+const NULL_BODY_STATUSES = new Set([204, 205, 304]);
+
 export function radioMirrorOrigin(value) {
   const hostname = String(value ?? '')
     .toLowerCase()
@@ -124,19 +127,33 @@ export function fetchPinnedRadioResponse(url, options, addresses) {
         },
       },
       (response) => {
-        const headers = new Headers();
-        for (const [name, value] of Object.entries(response.headers)) {
-          if (Array.isArray(value))
-            value.forEach((item) => headers.append(name, item));
-          else if (value !== undefined) headers.set(name, String(value));
+        // Nothing thrown here may escape: this callback runs outside the
+        // promise, so an exception would be uncaught and crash the server.
+        try {
+          const status = response.statusCode || 500;
+          // A `Response` only represents statuses up to 599; Node never hands
+          // this callback a 1xx.
+          if (status > 599)
+            throw new Error(
+              `Radio Browser returned unsupported status ${status}`,
+            );
+          const headers = new Headers();
+          for (const [name, value] of Object.entries(response.headers)) {
+            if (Array.isArray(value))
+              value.forEach((item) => headers.append(name, item));
+            else if (value !== undefined) headers.set(name, String(value));
+          }
+          const nullBody = NULL_BODY_STATUSES.has(status);
+          const upstream = new Response(
+            nullBody ? null : Readable.toWeb(response),
+            { status, statusText: response.statusMessage || '', headers },
+          );
+          if (nullBody) response.resume();
+          resolve(upstream);
+        } catch (error) {
+          response.destroy();
+          reject(error);
         }
-        resolve(
-          new Response(Readable.toWeb(response), {
-            status: response.statusCode || 500,
-            statusText: response.statusMessage || '',
-            headers,
-          }),
-        );
       },
     );
     request.on('error', reject);

server/providers/space/celestrak.js

@@ -1,6 +1,7 @@
 import path from 'node:path';
 import { promises as fsp } from 'node:fs';
 import { celestrakTleUrl } from '../../../src/data/spaceProviderRequests.js';
+import { readResponseTextCapped } from '../common/http.js';
 
 /**
  * Vite plugin: CelesTrak TLE proxy.
@@ -48,10 +49,14 @@ export function celestrakProxy() {
     }
   }
 
+  /** The largest group (`active`) measures ~2.7 MB; this bounds a runaway body. */
+  const CELESTRAK_MAX_RESPONSE_BYTES = 16 * 1024 * 1024;
+
   async function fetchUpstream(group) {
     const url = celestrakTleUrl(group);
+    const signal = AbortSignal.timeout(20000);
     const res = await fetch(url.toString(), {
-      signal: AbortSignal.timeout(20000),
+      signal,
       // CelesTrak 403s bulk groups (e.g. `active`) unless the request carries a
       // descriptive User-Agent with a contact point.
       headers: {
@@ -60,7 +65,11 @@ export function celestrakProxy() {
       },
     });
     if (!res.ok) throw new Error(`HTTP ${res.status}`);
-    const body = await res.text();
+    const body = await readResponseTextCapped(
+      res,
+      CELESTRAK_MAX_RESPONSE_BYTES,
+      signal,
+    );
     // An upstream error page parses to zero TLEs — treat as failure, keep cache.
     if (!/^1 /m.test(body)) throw new Error('no TLE lines in response');
     return { at: Date.now(), body };

server/providers/traffic.js

@@ -1,6 +1,7 @@
 import path from 'node:path';
 import { promises as fsp } from 'node:fs';
 
+import { readResponseBytesCapped } from './common/http.js';
 import {
   isValidTileCoord as isValidTomTomTile,
   utcDayKey as tomtomUtcDayKey,
@@ -48,6 +49,8 @@ export function tomtomProxy() {
   const DEFAULT_DAILY_BUDGET = 6000;
   const MEM_MAX_ENTRIES = 256;
   const UPSTREAM_TIMEOUT_MS = 15000;
+  /** Flow tiles are well under 1 MB; this bounds a runaway body, not a budget. */
+  const TOMTOM_TILE_MAX_RESPONSE_BYTES = 8 * 1024 * 1024;
 
   /** @type {Map<string, {at:number, buf:Buffer}>} tile key `z/x/y` -> cached tile (kept past TTL for serve-stale). */
   const mem = new Map();
@@ -143,11 +146,15 @@ export function tomtomProxy() {
       'https://api.tomtom.com/traffic/map/4/tile/flow/relative/' +
       `${z}/${x}/${y}.pbf?key=${encodeURIComponent(process.env.TOMTOM_API_KEY)}`;
     recordUpstreamFetch(); // attempts count — upstream bills the request either way
-    const res = await fetch(url, {
-      signal: AbortSignal.timeout(UPSTREAM_TIMEOUT_MS),
-    });
+    const signal = AbortSignal.timeout(UPSTREAM_TIMEOUT_MS);
+    const res = await fetch(url, { signal });
     if (!res.ok) throw new Error(`HTTP ${res.status}`);
-    const buf = Buffer.from(await res.arrayBuffer());
+    const bytes = await readResponseBytesCapped(
+      res,
+      TOMTOM_TILE_MAX_RESPONSE_BYTES,
+      signal,
+    );
+    const buf = Buffer.from(bytes.buffer, bytes.byteOffset, bytes.byteLength);
     if (buf.length === 0) throw new Error('empty tile body');
     return buf;
   }

src/annotations/annotationEngine.test.mjs

@@ -313,7 +313,9 @@ test('retry: a plain HTTP 500 still exhausts the existing 8s/25s transient ladde
   t.mock.timers.enable({ apis: ['setTimeout', 'Date'], now: 100_000 });
   globalThis.window = { setTimeout: globalThis.setTimeout, clearTimeout: globalThis.clearTimeout };
   const requestTimes = [];
-  globalThis.fetch = async () => {
+  globalThis.fetch = async (url) => {
+    if (String(url).endsWith('/status'))
+      return Response.json({ configured: true });
     requestTimes.push(Date.now());
     return httpFailure(500);
   };
@@ -402,7 +404,7 @@ test('outline upgrade updates the rendered element in place without remove/add',
   };
   let overpassCall = 0;
   globalThis.fetch = async (url) => {
-    if (String(url).startsWith('https://maps.googleapis.com/')) {
+    if (String(url).startsWith('/api/google/geocode')) {
       return { json: async () => ({
         status: 'OK',
         results: [{

src/annotations/annotationResolver.test.mjs

@@ -200,7 +200,7 @@ test('ask-side admin bypass: "the Texas Capitol" recovers near-view despite a fa
   const calls = [];
   installGoogleMocks(t, async (url) => {
     calls.push(String(url));
-    if (String(url).startsWith('https://maps.googleapis.com/')) {
+    if (String(url).startsWith('/api/google/geocode')) {
       return { json: async () => geocodePayload({
         lat: 31.0000,
         lon: -99.0000,
@@ -235,7 +235,7 @@ test('ask-side admin bypass: explicit "state of Texas" skips recovery and proxim
   const calls = [];
   installGoogleMocks(t, async (url) => {
     calls.push(String(url));
-    assert.match(String(url), /^https:\/\/maps\.googleapis\.com\/maps\/api\/geocode/);
+    assert.match(String(url), /^\/api\/google\/geocode\?/);
     return { json: async () => geocodePayload({
       lat: 31.0000,
       lon: -99.0000,
@@ -273,7 +273,7 @@ for (const fixture of [
     const calls = [];
     installGoogleMocks(t, async (url) => {
       calls.push(String(url));
-      if (String(url).startsWith('https://maps.googleapis.com/')) {
+      if (String(url).startsWith('/api/google/geocode')) {
         return { json: async () => geocodePayload({
           lat: fixture.lat,
           lon: fixture.lon,
@@ -299,7 +299,7 @@ test('ask-side admin bypass: bare "Texas" remains on the guarded recovery path',
   const calls = [];
   installGoogleMocks(t, async (url) => {
     calls.push(String(url));
-    if (String(url).startsWith('https://maps.googleapis.com/')) {
+    if (String(url).startsWith('/api/google/geocode')) {
       return { json: async () => geocodePayload({
         lat: 31.0000,
         lon: -99.0000,
@@ -328,7 +328,7 @@ test('ask-side admin bypass: admin level 2/3 result types never grant a township
   const calls = [];
   installGoogleMocks(t, async (url) => {
     calls.push(String(url));
-    if (String(url).startsWith('https://maps.googleapis.com/')) {
+    if (String(url).startsWith('/api/google/geocode')) {
       const query = new URL(String(url)).searchParams.get('address');
       return { json: async () => geocodePayload({
         lat: 39.7817,
@@ -380,7 +380,7 @@ function installCapitolMocks(t, elements, components = [
   { long_name: 'Capitol Hill', types: ['neighborhood', 'political'] },
 ]) {
   installGoogleMocks(t, async (url) => {
-    if (String(url).startsWith('https://maps.googleapis.com/')) {
+    if (String(url).startsWith('/api/google/geocode')) {
       return { json: async () => ({ status: 'OK', results: [{
         formatted_address: 'Washington, DC 20004, USA',
         types: ['establishment', 'landmark', 'point_of_interest', 'tourist_attraction'],
@@ -458,7 +458,7 @@ test('keyless: a key that geocodes to nothing still anchors the annotation', asy
   const requests = [];
   installGoogleMocks(t, async (url) => {
     requests.push(String(url));
-    if (String(url).startsWith('https://maps.googleapis.com/')) return GOOGLE_FOUND_NOTHING;
+    if (String(url).startsWith('/api/google/geocode')) return GOOGLE_FOUND_NOTHING;
     return {
       ok: true,
       json: async () => ({
@@ -495,7 +495,7 @@ test('keyless: a key that geocodes to nothing still anchors the annotation', asy
     high: { latitude: 30.28, longitude: -97.68 },
   });
   // Google is asked first and exactly once; one Photon call answers it.
-  assert.equal(requests.filter((url) => url.includes('maps.googleapis.com')).length, 1);
+  assert.equal(requests.filter((url) => url.includes('/api/google/geocode')).length, 1);
   assert.equal(requests.filter((url) => url.includes('photon.komoot.io')).length, 1);
 });
 
@@ -512,7 +512,7 @@ test('keyless: OSM matching uses the feature\'s canonical name, not the user\'s
 
   installGoogleMocks(t, async (url, init) => {
     const href = String(url);
-    if (href.startsWith('https://maps.googleapis.com/')) return GOOGLE_FOUND_NOTHING;
+    if (href.startsWith('/api/google/geocode')) return GOOGLE_FOUND_NOTHING;
     if (href.startsWith('/api/google/text-search')) return { ok: true, json: async () => ({ places: [] }) };
     if (href.startsWith('https://photon.komoot.io/')) {
       return {
@@ -575,7 +575,7 @@ test('keyless: a Photon outage is not remembered as "no such place"', async (t)
   const requests = [];
   installGoogleMocks(t, async (url) => {
     requests.push(String(url));
-    if (String(url).startsWith('https://maps.googleapis.com/')) return GOOGLE_FOUND_NOTHING;
+    if (String(url).startsWith('/api/google/geocode')) return GOOGLE_FOUND_NOTHING;
     if (!photonReachable) throw new Error('network down');
     return photonUp;
   });

src/app/constructCatalog.js

@@ -24,7 +24,9 @@ import { createApplicationLocalAdsb } from './layers/localAdsb.js';
 import { createApplicationAwareness } from './layers/militaryAwareness.js';
 import { createApplicationFirms } from './layers/firms.js';
 import { createApplicationEarthquakes } from './layers/earthquakes.js';
+import { createApplicationAirQuality } from './layers/airQuality.js';
 import { createApplicationFirePerimeters } from './layers/perimeters.js';
+import { createApplicationGnssIntegrity } from './layers/gnss.js';
 import { createApplicationCables } from './layers/submarineCables.js';
 import { createApplicationStreetLevel } from './layers/streetLevel.js';
 import { createInfrastructureLayers } from '../data/infrastructure.js';
@@ -117,9 +119,13 @@ export function createApplicationCatalog({
           ...(resolveAsset ? { resolveAsset } : {}),
         }),
         createApplicationEarthquakes({ source: sources.earthquakes }),
+        createApplicationAirQuality({ source: sources['air-quality'] }),
         createApplicationFirePerimeters({
           source: sources['fire-perimeters'],
         }),
+        createApplicationGnssIntegrity({
+          source: sources['gnss-integrity'],
+        }),
         createApplicationAlpr({ surface, source: sources.alpr }),
         createApplicationStreetLevel({
           surface,

src/app/constructCatalog.test.mjs

@@ -40,7 +40,7 @@ test('catalogs construct distinct layers and classification from their supplied
     signal: b.signal,
     surface: fixtureSurface(b.signal),
   });
-  assert.equal(first.layers.length, 30);
+  assert.equal(first.layers.length, 32);
   assert.ok(first.get('local-adsb'), 'Local ADS-B is registered');
   assert.deepEqual(
     first.metadata.find(({ id }) => id === 'local-adsb'),
@@ -60,6 +60,7 @@ test('catalogs construct distinct layers and classification from their supplied
       '2026-09-21T12:00:00.000Z',
     );
   assert.ok(first.get('fire-perimeters'));
+  assert.ok(first.get('gnss-integrity'));
   assert.ok(first.get('transit'));
   const order = first.layers.map(({ id }) => id);
   assert.deepEqual(
@@ -153,7 +154,7 @@ test('Mapillary can be omitted or replaced without changing catalog membership',
     surface: fixtureSurface(lifetime.signal),
   };
   const catalog = createApplicationCatalog(options);
-  assert.equal(catalog.layers.length, 30);
+  assert.equal(catalog.layers.length, 32);
   assert.deepEqual(catalog.get('street-level').providerIds, []);
   assert.equal(
     catalogControlServices(catalog).streetLevelLayer,

src/app/layers/airQuality.js

@@ -0,0 +1,6 @@
+import { createAirQualityLayer } from '../../layers/airQuality/index.js';
+import { overlayHost } from './overlayHost.js';
+/** Wire air-quality readings to the application overlay host. */
+export function createApplicationAirQuality(options) {
+  return createAirQualityLayer({ overlayHost, ...options });
+}

src/app/layers/gnss.js

@@ -0,0 +1,6 @@
+import { createGnssIntegrityLayer } from '../../layers/gnss/index.js';
+
+/** Wire the adsb.lol GNSS navigation-integrity layer into the application catalog. */
+export function createApplicationGnssIntegrity(options) {
+  return createGnssIntegrityLayer(options);
+}

src/app/layers/streetLevel.js

@@ -2,6 +2,7 @@ import { createStreetLevelLayer } from '../../layers/streetLevel/index.js';
 import { createMapillaryProvider } from '../../layers/streetLevel/providers/mapillary/index.js';
 import { createGoogleProvider } from '../../layers/streetLevel/providers/google/index.js';
 import { createKartaViewProvider } from '../../layers/streetLevel/providers/kartaview/index.js';
+import { createPanoramaxProvider } from '../../layers/streetLevel/providers/panoramax/index.js';
 import * as sprites from '../../data/spriteOrder.js';
 import * as picking from '../../data/pickRegistry.js';
 import * as input from '../../data/inputOwnership.js';
@@ -12,8 +13,8 @@ import * as render from '../../renderGovernor.js';
 const googleApiKey = () => globalThis.window?.__GOOGLE_MAPS_API_KEY__ || null;
 
 /**
- * Mapillary, Google Street View and KartaView, once the Mapillary source is
- * supplied; else none.
+ * Mapillary, Google Street View, KartaView and Panoramax, once the Mapillary
+ * source is supplied; else none.
  */
 function defaultProviders(sources) {
   if (sources.mapillary == null) return [];
@@ -21,6 +22,7 @@ function defaultProviders(sources) {
     createMapillaryProvider({ source: sources.mapillary }),
     createGoogleProvider({ getApiKey: googleApiKey }),
     createKartaViewProvider(),
+    createPanoramaxProvider(),
   ];
 }
 

src/app/layers/streetLevel.test.mjs

@@ -28,7 +28,7 @@ test('explicit providers replace the default source and an empty list removes it
   );
 });
 
-test('the defaults are Mapillary (given its source), Street View and KartaView, which start off and travel as provider switches', async () => {
+test('the defaults are Mapillary (given its source), Street View, KartaView and Panoramax, which start off and travel as provider switches', async () => {
   const { createDefaultLayerState } = await import('../../data/layerState.js');
   const mapillary = {
     getStatus() {},
@@ -37,7 +37,12 @@ test('the defaults are Mapillary (given its source), Street View and KartaView,
     nearestImages() {},
   };
   const layer = createApplicationStreetLevel({ sources: { mapillary } });
-  assert.deepEqual(layer.providerIds, ['mapillary', 'google', 'kartaview']);
+  assert.deepEqual(layer.providerIds, [
+    'mapillary',
+    'google',
+    'kartaview',
+    'panoramax',
+  ]);
   // A fresh page and a restored default agree: Street View is billed, so off.
   layer.setParams(createDefaultLayerState().options['street-level']);
   assert.equal(layer.getParams().google, false);
@@ -45,12 +50,25 @@ test('the defaults are Mapillary (given its source), Street View and KartaView,
   // A link that lit Street View carries it in the shared switch field.
   layer.setParams({ providerSwitches: 'google-1' });
   assert.equal(layer.getParams().google, true);
-  assert.equal(layer.getParams().providerSwitches, 'google-1*kartaview-0');
+  assert.equal(
+    layer.getParams().providerSwitches,
+    'google-1*kartaview-0*panoramax-0',
+  );
   // KartaView is keyless and free, but one source shows at a time.
   layer.setParams({ providerSwitches: 'kartaview-1' });
   assert.equal(layer.getParams().kartaview, true);
   assert.equal(layer.getParams().google, false);
   assert.equal(layer.getParams().mapillary, false);
+  // As is Panoramax: lighting it puts KartaView out.
+  layer.setParams({ providerSwitches: 'panoramax-1' });
+  assert.equal(layer.getParams().panoramax, true);
+  assert.equal(layer.getParams().kartaview, false);
+  assert.equal(layer.getParams().mapillary, false);
+  // The form the app writes (the README and CHANGELOG quote it).
+  assert.equal(
+    layer.getParams().providerSwitches,
+    'google-0*kartaview-0*panoramax-1',
+  );
   // Without the application's Street Level source there are none.
   assert.deepEqual(createApplicationStreetLevel({}).providerIds, []);
 });

src/app/sourceComposition.js

@@ -46,6 +46,8 @@ export const CATALOG_SOURCE_CONTRACTS = Object.freeze({
   cyclones: contract(['weather-cyclones'], ['getSnapshot']),
   earthquakes: contract(['earthquakes'], ['getSnapshot']),
   'fire-perimeters': contract(['fire-perimeters'], ['getSnapshot']),
+  'air-quality': contract(['air-quality'], ['getSnapshot']),
+  'gnss-integrity': contract(['gnss-integrity'], ['getSnapshot']),
   cables: contract(['telegeography-submarine-cables'], ['fetch']),
   transit: contract(['transit'], ['requestSnapshot', 'getHistory']),
 });

src/app/sourceComposition.test.mjs

@@ -37,7 +37,7 @@ test('every acquisition source can be omitted without losing catalog membership'
 
 test('all acquisition sources may be absent, and enable fails before initializing or fetching', async (t) => {
   const actual = catalog({}, t);
-  assert.equal(actual.layers.length, 30);
+  assert.equal(actual.layers.length, 32);
   const manager = new LayerLifecycle(
     {},
     { getSourceAvailability: actual.getSourceAvailability },

src/app/tools.js

@@ -1,6 +1,7 @@
 import { SceneDirector } from '../scenes/director.js';
 import { initAnnotations } from '../annotations/index.js';
 import { initDrawTool } from '../annotations/drawTool.js';
+import { initGeoFileImport } from '../ui/geoFileImport.js';
 import { initImageryBoxTool } from '../ui/imageryBoxTool.js';
 import { createRecentImageryPanel } from '../ui/recentImagery.js';
 import { initGevVoiceCommands } from '../voice/gevRealtime.js';
@@ -56,6 +57,16 @@ export function createApplicationTools({
   // lifetime rather than to whoever last pressed the button.
   const drawTool = initDrawTool({ viewer, annotations });
   defer(() => drawTool?.destroy());
+  // DISPLAY ▸ Import: the person's own GeoJSON/KML/KMZ/GPX files, each its
+  // own data source. They live for the page session, so the application
+  // lifetime removes them and the drop listeners on the viewer container.
+  const geoFileImport = initGeoFileImport({
+    viewer,
+    navigation: styleManager,
+    ground: operations.surface?.groundFloor,
+    subscribeMapSource: (listener) => mapStackController?.subscribe?.(listener),
+  });
+  defer(() => geoFileImport?.destroy());
   // DATA ▸ Recent Imagery: the box tool claims the pointer like Draw and the
   // panel lives on the right rail, so both belong to the application
   // lifetime. The tileset lets the layer drape while the globe is hidden.

src/cockpitMath.js

@@ -83,6 +83,26 @@ export function cockpitAltitudeDisplayFt(altitudeM, onGround) {
   return Number.isFinite(altitudeM) ? altitudeM * 3.28084 : null;
 }
 
+/**
+ * HUD wording for a tracked aircraft's transponder emergency, or null.
+ * States what was broadcast, never a conclusion about the flight: the Mode A
+ * code when it names the status, else the ADS-B field it came from (an
+ * unrelated squawk is dropped).
+ * @param {{label?: string, squawk?: string|null, source?: string,
+ *   severity?: string}|null|undefined} emergency
+ * @returns {string|null}
+ */
+export function formatCockpitEmergency(emergency) {
+  const label = String(emergency?.label || '')
+    .trim()
+    .toUpperCase();
+  if (!label) return null;
+  if (emergency.source === 'squawk' && emergency.squawk)
+    return `SQUAWK ${emergency.squawk} · ${label}`;
+  const field = emergency.severity === 'priority' ? 'PRIORITY' : 'EMERGENCY';
+  return `ADS-B ${field} · ${label}`;
+}
+
 /** Format the cockpit Context scope without overstating installation coverage. */
 export function formatCockpitContextScope(
   subjectLabel,

src/cockpitMath.test.mjs

@@ -13,6 +13,7 @@ import {
   compassDivisions,
   formatAltitudeRulerTick,
   formatCockpitContextScope,
+  formatCockpitEmergency,
   formatCompassDivision,
   formatSpeedRulerTick,
   normalizeHeading,
@@ -364,3 +365,21 @@ test('tracked-identity resolution falls back to layer precedence', () => {
   assert.equal(resolveTrackedAircraftInfo({ trackedId: 'flights:aaa077' }), null);
   assert.equal(resolveTrackedAircraftInfo(), null);
 });
+
+test('cockpit emergency wording states the broadcast code, not a conclusion', () => {
+  assert.equal(
+    formatCockpitEmergency({ label: 'General emergency', squawk: '7700', source: 'squawk', severity: 'emergency' }),
+    'SQUAWK 7700 · GENERAL EMERGENCY',
+  );
+  assert.equal(
+    formatCockpitEmergency({ label: 'Downed aircraft', squawk: '1200', source: 'ads-b', severity: 'emergency' }),
+    'ADS-B EMERGENCY · DOWNED AIRCRAFT',
+    'an unrelated squawk is not quoted beside an ADS-B status',
+  );
+  assert.equal(
+    formatCockpitEmergency({ label: 'Minimum fuel', squawk: null, source: 'ads-b', severity: 'priority' }),
+    'ADS-B PRIORITY · MINIMUM FUEL',
+  );
+  assert.equal(formatCockpitEmergency(null), null);
+  assert.equal(formatCockpitEmergency({ label: '' }), null);
+});

src/data/adsbLolFallback.js

@@ -43,11 +43,18 @@ export function normalizeAdsbLolAircraftState(aircraft, nowSeconds) {
     .toLowerCase();
   const latitude = finiteNumber(aircraft?.lat);
   const longitude = finiteNumber(aircraft?.lon);
-  if (!hex || latitude === null || longitude === null) return null;
+  if (
+    !hex ||
+    latitude === null ||
+    longitude === null ||
+    Math.abs(latitude) > 90 ||
+    Math.abs(longitude) > 180
+  )
+    return null;
 
   const seenPosition = Math.max(
     0,
-    finiteNumber(aircraft?.seen_pos) ?? finiteNumber(aircraft?.seen) ?? 0,
+    finiteNumber(aircraft?.seen_pos) ?? finiteNumber(aircraft?.seen) ?? NaN,
   );
   const seen = Math.max(0, finiteNumber(aircraft?.seen) ?? seenPosition);
   const onGround = aircraft?.alt_baro === 'ground';
@@ -62,8 +69,10 @@ export function normalizeAdsbLolAircraftState(aircraft, nowSeconds) {
     hex,
     String(aircraft?.flight || aircraft?.r || '').trim() || null,
     null,
-    Math.max(0, nowSeconds - seenPosition),
-    Math.max(0, nowSeconds - seen),
+    Number.isFinite(seenPosition)
+      ? Math.max(0, nowSeconds - seenPosition)
+      : null,
+    Number.isFinite(seen) ? Math.max(0, nowSeconds - seen) : null,
     longitude,
     latitude,
     barometricFeet === null ? null : barometricFeet * FOOT_TO_M,
@@ -94,8 +103,28 @@ export function normalizeAdsbLolPointResponse(payload) {
       : Math.floor(
           responseNow > 10_000_000_000 ? responseNow / 1000 : responseNow,
         );
-  const states = (Array.isArray(payload?.ac) ? payload.ac : [])
-    .map((aircraft) => normalizeAdsbLolAircraftState(aircraft, nowSeconds))
-    .filter(Boolean);
-  return { time: nowSeconds, states };
+  const aircraft = Array.isArray(payload?.ac) ? payload.ac : [];
+  const states = [];
+  // Keep the OpenSky vectors unchanged. The regional fallback's extra readsb
+  // status travels alongside them, keyed only to admitted aircraft.
+  const admitted = new Set();
+  const statuses = [];
+  for (const row of aircraft) {
+    const state = normalizeAdsbLolAircraftState(row, nowSeconds);
+    if (!state) continue;
+    states.push(state);
+    // The live contract admits the first valid vector for each ICAO. Its
+    // status must come from that same row, never an invalid or later duplicate.
+    const id = state[0];
+    if (admitted.has(id)) continue;
+    admitted.add(id);
+    if (typeof row.emergency === 'string')
+      statuses.push([id, row.emergency.trim().toLowerCase()]);
+  }
+  const emergencyByIcao = Object.fromEntries(statuses);
+  return {
+    time: nowSeconds,
+    states,
+    ...(Object.keys(emergencyByIcao).length ? { emergencyByIcao } : {}),
+  };
 }

src/data/aircraftEmergency.js

@@ -0,0 +1,93 @@
+/**
+ * Transponder emergency status for one aircraft, from the Mode A squawk and
+ * the ADS-B emergency/priority field.
+ *
+ * Emergency squawks are ICAO-standard worldwide: 7500 unlawful interference,
+ * 7600 radio failure, 7700 general emergency. readsb (adsb.lol) also reports
+ * `emergency`, "a superset of the 7x00 squawks": none, general, lifeguard,
+ * minfuel, nordo, unlawful, downed, reserved. OpenSky state vectors carry the
+ * squawk only.
+ *
+ * The status is what the transponder broadcast in THIS poll, never a finding:
+ * crews pass through 7x00 codes while dialling. Highlighting follows the latest
+ * broadcast, which does not confirm an incident or its resolution.
+ */
+
+/** @constant {string} Tint for aircraft broadcasting an emergency (not a priority). */
+export const EMERGENCY_TINT_CSS = '#FF4444';
+
+const SQUAWK_KINDS = { 7500: 'unlawful', 7600: 'nordo', 7700: 'general' };
+
+const KINDS = {
+  general: { label: 'General emergency', severity: 'emergency' },
+  unlawful: { label: 'Unlawful interference', severity: 'emergency' },
+  nordo: { label: 'Radio failure', severity: 'emergency' },
+  downed: { label: 'Downed aircraft', severity: 'emergency' },
+  minfuel: { label: 'Minimum fuel', severity: 'priority' },
+  lifeguard: { label: 'Lifeguard (medical priority)', severity: 'priority' },
+};
+
+/**
+ * A Mode A code as its four octal digits, else null.
+ * @param {unknown} value
+ * @returns {string|null}
+ */
+export function normalizeSquawk(value) {
+  const code = String(value ?? '').trim();
+  return /^[0-7]{4}$/.test(code) ? code : null;
+}
+
+/**
+ * Emergency status from one observation. Higher severity wins; an ADS-B
+ * emergency wins a tie. A
+ * 7x00 squawk counts even when the ADS-B field says `none`.
+ * @param {{squawk?: unknown, emergency?: unknown}} [observation]
+ * @returns {{kind: string, label: string, severity: 'emergency'|'priority',
+ *   squawk: string|null, source: 'ads-b'|'squawk'}|null} `source` is
+ *   'squawk' when the Mode A code itself names the status (so it can be
+ *   quoted), else 'ads-b'.
+ */
+export function aircraftEmergency({ squawk, emergency } = {}) {
+  const code = normalizeSquawk(squawk);
+  const reported = String(emergency ?? '')
+    .trim()
+    .toLowerCase();
+  const fromAdsb = Object.hasOwn(KINDS, reported);
+  const squawkKind = SQUAWK_KINDS[code] ?? null;
+  const kind =
+    fromAdsb && (KINDS[reported].severity === 'emergency' || !squawkKind)
+      ? reported
+      : squawkKind;
+  if (!kind) return null;
+  return {
+    kind,
+    ...KINDS[kind],
+    squawk: code,
+    source: SQUAWK_KINDS[code] === kind ? 'squawk' : 'ads-b',
+  };
+}
+
+/**
+ * How a summary may phrase the status without flattening it into an incident:
+ * quote the code when the Mode A squawk itself names the status, otherwise
+ * attribute it to the ADS-B emergency field.
+ * @param {{kind?: string, squawk?: string|null, source?: string}|null|undefined} status
+ * @returns {string|null} e.g. 'broadcasting squawk 7700 (general emergency)'
+ *   or 'ADS-B reports general emergency'; null when there is no status.
+ */
+export function emergencyBroadcastPhrase(status) {
+  if (!status || !Object.hasOwn(KINDS, status.kind)) return null;
+  const label = KINDS[status.kind].label.toLowerCase();
+  return status.source === 'squawk' && status.squawk
+    ? `broadcasting squawk ${status.squawk} (${label})`
+    : `ADS-B reports ${label}`;
+}
+
+/**
+ * True when the aircraft is broadcasting an emergency (not a priority status).
+ * @param {{severity?: string}|null|undefined} status
+ * @returns {boolean}
+ */
+export function isEmergency(status) {
+  return status?.severity === 'emergency';
+}

src/data/aircraftEmergency.test.mjs

@@ -0,0 +1,95 @@
+// src/data/aircraftEmergency.test.mjs
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  aircraftEmergency,
+  emergencyBroadcastPhrase,
+  isEmergency,
+  normalizeSquawk,
+} from './aircraftEmergency.js';
+
+test('the three ICAO emergency squawks map to their kinds', () => {
+  assert.equal(aircraftEmergency({ squawk: '7500' }).kind, 'unlawful');
+  assert.equal(aircraftEmergency({ squawk: '7600' }).kind, 'nordo');
+  const general = aircraftEmergency({ squawk: ' 7700 ' });
+  assert.deepEqual(general, {
+    kind: 'general',
+    label: 'General emergency',
+    severity: 'emergency',
+    squawk: '7700',
+    source: 'squawk',
+  });
+});
+
+test('ordinary codes, blanks and non-octal values are not emergencies', () => {
+  for (const squawk of ['1200', '7000', '2000', '', null, undefined, '7800'])
+    assert.equal(aircraftEmergency({ squawk }), null, String(squawk));
+  assert.equal(aircraftEmergency(), null);
+  assert.equal(normalizeSquawk('7800'), null);
+  assert.equal(normalizeSquawk(7700), '7700');
+  assert.equal(normalizeSquawk('770'), null);
+});
+
+test('the ADS-B emergency field wins, and `none` defers to the squawk', () => {
+  const minfuel = aircraftEmergency({ squawk: '4521', emergency: 'MinFuel' });
+  assert.equal(minfuel.kind, 'minfuel');
+  assert.equal(minfuel.severity, 'priority');
+  assert.equal(minfuel.source, 'ads-b');
+  assert.equal(minfuel.squawk, '4521');
+  assert.equal(
+    aircraftEmergency({ squawk: '7700', emergency: 'none' }).source,
+    'squawk',
+  );
+  assert.equal(
+    aircraftEmergency({ squawk: '7700', emergency: 'general' }).source,
+    'squawk',
+    'a code that names the status stays quotable',
+  );
+  assert.equal(
+    aircraftEmergency({ squawk: '1200', emergency: 'general' }).source,
+    'ads-b',
+  );
+  assert.equal(aircraftEmergency({ emergency: 'downed' }).kind, 'downed');
+  assert.equal(aircraftEmergency({ emergency: 'none' }), null);
+  assert.equal(aircraftEmergency({ emergency: 'reserved' }), null);
+});
+
+test('priority statuses are reported but are not emergencies', () => {
+  assert.equal(isEmergency(aircraftEmergency({ squawk: '7700' })), true);
+  assert.equal(
+    isEmergency(aircraftEmergency({ emergency: 'lifeguard' })),
+    false,
+  );
+  assert.equal(isEmergency(aircraftEmergency({ emergency: 'minfuel' })), false);
+  assert.equal(isEmergency(null), false);
+});
+
+test('the broadcast phrase quotes a naming code, else attributes ADS-B', () => {
+  assert.equal(
+    emergencyBroadcastPhrase(aircraftEmergency({ squawk: '7700' })),
+    'broadcasting squawk 7700 (general emergency)',
+  );
+  assert.equal(
+    emergencyBroadcastPhrase(
+      aircraftEmergency({ squawk: '1200', emergency: 'general' }),
+    ),
+    'ADS-B reports general emergency',
+  );
+  assert.equal(
+    emergencyBroadcastPhrase(aircraftEmergency({ emergency: 'lifeguard' })),
+    'ADS-B reports lifeguard (medical priority)',
+  );
+  assert.equal(emergencyBroadcastPhrase(null), null);
+  assert.equal(emergencyBroadcastPhrase({ kind: 'reserved' }), null);
+});
+
+test('an emergency squawk outranks an ADS-B priority', () => {
+  assert.equal(
+    aircraftEmergency({ squawk: '7700', emergency: 'lifeguard' }).kind,
+    'general',
+  );
+  assert.equal(
+    aircraftEmergency({ squawk: '7500', emergency: 'minfuel' }).kind,
+    'unlawful',
+  );
+});

src/data/aircraftEmergencyAnalyst.test.mjs

@@ -0,0 +1,524 @@
+import * as Cesium from 'cesium';
+import { TRACKED_ICON_COLOR } from '../layers/military/policy.js';
+import { createRendering as civilRendering } from '../layers/flights/rendering.js';
+import { createRendering as militaryRendering } from '../layers/military/rendering.js';
+import { createMilitarySnapshotRenderer } from '../layers/military/snapshotRenderer.js';
+import { aircraftEmergency } from './aircraftEmergency.js';
+// Source-to-voice provenance, status retention/clearing, contact-time contracts,
+// and civil/military billboard, Cockpit and model tint regressions.
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { openSkySnapshot, readsbSnapshot } from '../sources/live/index.js';
+import { FlightRecords } from '../layers/flights/records.js';
+import { MilitaryFlightRecords } from '../layers/military/records.js';
+import { mapAnalystRecord as mapFlight } from './flights.js';
+import { mapAnalystRecord as mapMilitary } from './militaryFlights.js';
+import { createAnalystEngine } from './analystEngine.js';
+import { normalizeAdsbLolPointResponse } from './adsbLolFallback.js';
+import { createGevActionRunner } from '../voice/gevActions.js';
+
+const NOW_MS = 1800000000000;
+
+test('fallback status belongs to the first valid admitted aircraft row', () => {
+  const valid = { hex: 'a1b2c3', lat: 30, lon: -97, squawk: '1200' };
+  for (const status of [undefined, 'general', 'none']) {
+    const payload = normalizeAdsbLolPointResponse({
+      now: NOW_MS,
+      ac: [
+        { ...valid, lat: 100, emergency: 'general' },
+        { ...valid, emergency: status },
+        { ...valid, lat: null, emergency: 'general' },
+        { ...valid, emergency: status === 'general' ? 'none' : 'general' },
+      ],
+    });
+    const snapshot = openSkySnapshot(payload, { now: NOW_MS });
+    assert.equal(snapshot.records.length, 1);
+    assert.equal(snapshot.records[0].emergency, status);
+    assert.equal(snapshot.records[0].latitude, 30);
+  }
+});
+
+function civilStore() {
+  return new FlightRecords({
+    geoidHeight: () => 0,
+    cachedGroundFloor: () => null,
+    floorAltitudeM: (value) => value,
+    approxDistanceKm: () => 0,
+  });
+}
+const receiveContext = {
+  viewerLatDeg: null,
+  viewerLonDeg: null,
+  trackedId: null,
+  floorWarmPoints: [],
+};
+
+test('real civil fallback preserves ADS-B emergency and priority, then clears', () => {
+  const store = civilStore();
+  const aircraft = {
+    hex: 'a1b2c3',
+    flight: 'TEST1',
+    lat: 30,
+    lon: -97,
+    alt_baro: 10000,
+    gs: 150,
+    track: 90,
+    squawk: '1200',
+    seen: 3,
+    seen_pos: 1,
+  };
+  for (const [status, expectedKind, flagged] of [
+    ['general', 'general', true],
+    ['minfuel', 'minfuel', false],
+    ['none', null, false],
+  ]) {
+    const payload = normalizeAdsbLolPointResponse({
+      now: NOW_MS,
+      ac: [{ ...aircraft, emergency: status }],
+    });
+    assert.equal(
+      payload.states[0].length,
+      18,
+      'fallback vectors retain the OpenSky shape',
+    );
+    const [observation] = openSkySnapshot(payload, { now: NOW_MS }).records;
+    const result = mapFlight(
+      aircraft.hex,
+      store.receive(observation, receiveContext).meta,
+    );
+    assert.equal(result.emergency, flagged);
+    assert.equal(result.emergencyKind, expectedKind);
+    assert.equal(result.emergencySource, expectedKind ? 'ads-b' : null);
+    assert.equal(result.lastContactAtMs, NOW_MS - 3000);
+  }
+});
+
+test('changed status without contact time retains general contact, including voice projection', async () => {
+  const store = civilStore();
+  const [observation] = readsbSnapshot(
+    {
+      ac: [
+        {
+          hex: 'a1b2c3',
+          flight: 'TEST1',
+          lat: 30,
+          lon: -97,
+          alt_baro: 10000,
+          gs: 150,
+          track: 90,
+          squawk: '1200',
+          emergency: 'general',
+          seen: 3,
+          seen_pos: 1,
+        },
+      ],
+    },
+    { observedAtMs: NOW_MS, now: NOW_MS },
+  ).records;
+  store.receive(observation, receiveContext);
+  const meta = store.receive(
+    { ...observation, contactTimeMs: null, squawk: '7600', emergency: 'none' },
+    receiveContext,
+  ).meta;
+  const record = mapFlight(observation.id, meta);
+  assert.equal(record.emergencyKind, 'nordo');
+  assert.equal(record.lastContactAtMs, NOW_MS - 3000);
+  assert.equal(Object.hasOwn(record, 'observedAtMs'), false);
+  globalThis.window = globalThis.window || {
+    clearTimeout,
+    setTimeout,
+    requestIdleCallback: null,
+  };
+  const flights = {
+    id: 'flights',
+    source: 'fixture',
+    getStats: () => ({ count: 1 }),
+    getAnalystRecords: () => [record],
+  };
+  const runner = createGevActionRunner({
+    viewer: {
+      clock: { onTick: { addEventListener: () => () => {} } },
+      scene: { canvas: { addEventListener() {}, removeEventListener() {} } },
+      camera: {
+        moveEnd: { addEventListener() {} },
+        positionCartographic: {
+          height: 300000,
+          latitude: 0.52,
+          longitude: -1.71,
+        },
+      },
+    },
+    styleManager: {
+      getContextModeState: () => ({ mode: null, active: false }),
+      getCockpitState: () => ({ active: false }),
+    },
+    dataManager: {
+      layers: new Map([['flights', { module: flights }]]),
+      isEnabled: (id) => id === 'flights',
+      getAll: () => [
+        { id: 'flights', name: 'Flights', enabled: true, stats: { count: 1 } },
+      ],
+    },
+  });
+  try {
+    const result = await runner('analyst_query', {
+      layers: ['flights'],
+      scope: { kind: 'anywhere' },
+      filters: [{ field: 'emergency', op: 'eq', value: true }],
+    });
+    assert.equal(result.ok, true);
+    assert.equal(result.items[0].emergency, true);
+    assert.equal(result.items[0].lastContactAtMs, NOW_MS - 3000);
+    assert.equal(result.items[0].emergencySource, 'squawk');
+    assert.equal(
+      result.items[0].emergencyBroadcast,
+      'broadcasting squawk 7600 (radio failure)',
+    );
+    assert.equal(
+      Object.hasOwn(result.items[0], 'time'),
+      false,
+      'general contact is not a generic incident timestamp',
+    );
+  } finally {
+    runner.dispose?.();
+  }
+});
+
+// OpenSky /states/all: [icao24, callsign, origin_country, time_position,
+// last_contact, lon, lat, baro_alt, on_ground, velocity, true_track,
+// vertical_rate, sensors, geo_alt, squawk, spi, position_source, category].
+const OPENSKY = {
+  time: NOW_MS / 1000,
+  states: [
+    [
+      'a1b2c3',
+      'SWA696  ',
+      'United States',
+      NOW_MS / 1000 - 6,
+      NOW_MS / 1000 - 3,
+      -97.67,
+      30.19,
+      3000,
+      false,
+      150,
+      180,
+      -5,
+      null,
+      3040,
+      '7700',
+      false,
+      0,
+      4,
+    ],
+  ],
+};
+
+// adsb.lol /v2/mil: readsb aircraft with `seen`/`seen_pos` ages in seconds.
+const ADSB_LOL = {
+  ac: [
+    {
+      hex: 'ae01ce',
+      flight: 'RCH123  ',
+      t: 'C17',
+      lat: 31.1,
+      lon: -97.4,
+      alt_baro: 18000,
+      gs: 300,
+      track: 90,
+      squawk: '1200',
+      emergency: 'general',
+      seen: 1.5,
+      seen_pos: 2,
+    },
+  ],
+};
+
+function civilAnalystRecord() {
+  const [row] = openSkySnapshot(OPENSKY, { now: NOW_MS }).records;
+  const store = new FlightRecords({
+    geoidHeight: () => 0,
+    cachedGroundFloor: () => null,
+    floorAltitudeM: (altitude) => altitude,
+    approxDistanceKm: () => 0,
+  });
+  const { meta } = store.receive(row, {
+    viewerLatDeg: null,
+    viewerLonDeg: null,
+    trackedId: null,
+    floorWarmPoints: [],
+  });
+  return mapFlight(row.id, meta);
+}
+
+function militaryAnalystRecord() {
+  const [row] = readsbSnapshot(ADSB_LOL, {
+    observedAtMs: NOW_MS,
+    now: NOW_MS,
+  }).records;
+  const store = new MilitaryFlightRecords({
+    geoidHeight: () => 0,
+    cachedGroundFloor: () => null,
+    floorAltitudeM: (altitude) => altitude,
+  });
+  const { meta } = store.receive(row, {
+    observedAtMs: NOW_MS,
+    floorWarmPoints: [],
+    modelOwnsVisual: false,
+  });
+  return mapMilitary(row.id, meta);
+}
+
+test('OpenSky 7700 and adsb.lol emergency=general differ only in provenance', () => {
+  const civil = civilAnalystRecord();
+  const military = militaryAnalystRecord();
+
+  assert.equal(civil.emergency, true);
+  assert.equal(civil.emergencyKind, 'general');
+  assert.equal(civil.squawk, '7700');
+  assert.equal(civil.emergencySource, 'squawk');
+  assert.equal(
+    civil.emergencyBroadcast,
+    'broadcasting squawk 7700 (general emergency)',
+  );
+  assert.equal(civil.lastContactAtMs, NOW_MS - 3000, 'OpenSky last_contact');
+
+  assert.equal(military.emergency, true);
+  assert.equal(military.emergencyKind, 'general');
+  assert.equal(military.squawk, '1200', 'the code is not an emergency code');
+  assert.equal(military.emergencySource, 'ads-b');
+  assert.equal(military.emergencyBroadcast, 'ADS-B reports general emergency');
+  assert.equal(military.lastContactAtMs, NOW_MS - 1500, 'snapshot time - seen');
+});
+
+test('the analyst can filter emergencies by source', async () => {
+  const records = {
+    flights: [civilAnalystRecord()],
+    military: [militaryAnalystRecord()],
+  };
+  const engine = createAnalystEngine({
+    getRecords: (key) => records[key] || [],
+    resolveRegionRing: async () => null,
+    getViewContext: () => ({ lat: 30.5, lon: -97.5, viewRadiusKm: 500 }),
+  });
+  const query = (value) =>
+    engine.query({
+      layers: ['flights', 'military'],
+      scope: { kind: 'anywhere' },
+      filters: [
+        { field: 'emergency', op: 'eq', value: true },
+        { field: 'emergencySource', op: 'eq', value },
+      ],
+    });
+  const bySquawk = await query('squawk');
+  assert.deepEqual(
+    bySquawk.items.map((item) => [item.icao24, item.emergencyBroadcast]),
+    [['a1b2c3', 'broadcasting squawk 7700 (general emergency)']],
+  );
+  const byAdsb = await query('ads-b');
+  assert.deepEqual(
+    byAdsb.items.map((item) => [item.icao24, item.emergencyBroadcast]),
+    [['ae01ce', 'ADS-B reports general emergency']],
+  );
+});
+
+test('military status changes retain only the latest known general contact', () => {
+  const store = new MilitaryFlightRecords({
+    geoidHeight: () => 0,
+    cachedGroundFloor: () => null,
+    floorAltitudeM: (v) => v,
+  });
+  const [observation] = readsbSnapshot(ADSB_LOL, {
+    observedAtMs: NOW_MS,
+    now: NOW_MS,
+  }).records;
+  const context = {
+    observedAtMs: NOW_MS,
+    floorWarmPoints: [],
+    modelOwnsVisual: false,
+  };
+  const unknown = mapMilitary(
+    observation.id,
+    store.receive({ ...observation, contactTimeMs: null }, context).meta,
+  );
+  assert.equal(unknown.lastContactAtMs, null);
+  store.receive(observation, context);
+  const changed = mapMilitary(
+    observation.id,
+    store.receive(
+      {
+        ...observation,
+        contactTimeMs: null,
+        squawk: '7600',
+        emergency: 'none',
+      },
+      context,
+    ).meta,
+  );
+  assert.equal(changed.emergencyKind, 'nordo');
+  assert.equal(changed.lastContactAtMs, NOW_MS - 1500);
+});
+
+test('fallback missing contact age retains known contact through the real converter', () => {
+  const store = civilStore();
+  const row = {
+    hex: 'a1b2c3',
+    lat: 30,
+    lon: -97,
+    squawk: '1200',
+    emergency: 'general',
+    seen: 3,
+    seen_pos: 1,
+  };
+  const receive = (row) =>
+    store.receive(
+      openSkySnapshot(
+        normalizeAdsbLolPointResponse({ now: NOW_MS, ac: [row] }),
+        { now: NOW_MS },
+      ).records[0],
+      receiveContext,
+    ).meta;
+  const first = receive(row);
+  const second = receive({ ...row, seen: undefined, seen_pos: undefined });
+  assert.equal(second.lastContactEpochMs, first.lastContactEpochMs);
+});
+
+test('one omitted ADS-B status poll is retained; explicit none and changed squawk clear immediately', () => {
+  const store = civilStore();
+  const row = {
+    hex: 'a1b2c3',
+    lat: 30,
+    lon: -97,
+    squawk: '1200',
+    emergency: 'general',
+    seen: 3,
+  };
+  const receive = (row) =>
+    store.receive(
+      openSkySnapshot(
+        normalizeAdsbLolPointResponse({ now: NOW_MS, ac: [row] }),
+        { now: NOW_MS },
+      ).records[0],
+      receiveContext,
+    ).meta;
+  assert.equal(receive(row).emergency.kind, 'general');
+  assert.equal(
+    receive({ ...row, emergency: undefined }).emergency?.kind,
+    'general',
+  );
+  assert.equal(receive({ ...row, emergency: undefined }).emergency, null);
+  receive(row);
+  assert.equal(receive({ ...row, emergency: 'none' }).emergency, null);
+  receive(row);
+  assert.equal(
+    receive({ ...row, emergency: undefined, squawk: '2000' }).emergency,
+    null,
+  );
+});
+
+function renderHarness(factory) {
+  const flightState = { records: { data: new Map() }, _trackedIcao: null };
+  const rendering = factory({
+    flightState,
+    services: {
+      militaryRegistry: { isMilitaryIcao: (id) => id === 'mil' },
+      aircraftPresentation: {},
+      camera: {},
+      focus: {},
+      recession: {},
+    },
+    parts: {},
+  });
+  return { flightState, rendering };
+}
+
+test('tint priorities cover normal, priority, emergency, tracking and Cockpit dots', () => {
+  for (const factory of [civilRendering, militaryRendering]) {
+    const { flightState, rendering } = renderHarness(factory);
+    const normal = rendering._fleetBillboardColor('civil', {});
+    assert.equal(
+      rendering._fleetBillboardColor('civil', {
+        emergency: aircraftEmergency({ emergency: 'minfuel' }),
+      }),
+      normal,
+    );
+    const red = rendering._fleetBillboardColor('civil', {
+      emergency: aircraftEmergency({ squawk: '7700' }),
+    });
+    assert.ok(red.red > 0.9 && red.green < 0.5);
+    flightState.records.data.set('civil', {
+      emergency: aircraftEmergency({ squawk: '7700' }),
+    });
+    assert.equal(rendering._modelColor('civil'), red);
+    if (rendering._cockpitContactColor)
+      assert.equal(rendering._cockpitContactColor('civil'), red);
+    flightState._trackedIcao = 'civil';
+    assert.equal(
+      rendering._modelColor('civil'),
+      factory === civilRendering ? Cesium.Color.CYAN : TRACKED_ICON_COLOR,
+    );
+    flightState._trackedIcao = null;
+    flightState.records.data.set('civil', { emergency: null });
+    assert.equal(rendering._modelColor('civil'), normal);
+  }
+});
+
+test('GERMAN: an existing untracked military billboard repaints each poll without alpha loss', () => {
+  const { flightState, rendering } = renderHarness(militaryRendering);
+  const bb = {
+    color: rendering._fleetBillboardColor('abc123').withAlpha(0.65),
+  };
+  Object.assign(flightState, {
+    _billboards: new Map([['abc123', bb]]),
+    _models: new Map(),
+    _positionHistory: new Map(),
+    _cullPositions: new Map(),
+    _groundSnap: { forget() {} },
+    _cockpitContactMode: false,
+  });
+  const records = new MilitaryFlightRecords({
+    geoidHeight: () => 0,
+    cachedGroundFloor: () => null,
+    floorAltitudeM: (value) => value,
+  });
+  flightState.records = records;
+  const apply = createMilitarySnapshotRenderer({
+    flightState,
+    records,
+    groundFloor: { warmGroundFloor() {}, cachedGroundFloor: () => null },
+    meshFloor: { sampleMeshFloorCells() {} },
+    militaryRegistry: { registerMilitaryIcaos() {} },
+    rendering: {
+      ...rendering,
+      _syncModelToClass() {},
+      _applyFleetBillboardPresentation() {},
+    },
+    motion: {},
+    tracking: {},
+    queries: {},
+  });
+  for (const [emergency, red] of [
+    ['general', true],
+    ['none', false],
+    ['general', true],
+  ]) {
+    const snapshot = readsbSnapshot(
+      {
+        ac: [
+          {
+            hex: 'abc123',
+            lat: 30,
+            lon: -97,
+            alt_baro: 10000,
+            squawk: '1200',
+            emergency,
+            seen_pos: 1,
+          },
+        ],
+      },
+      { observedAtMs: NOW_MS },
+    );
+    apply(snapshot, {});
+    assert.equal(bb.color.green < 0.5, red);
+    assert.equal(bb.color.alpha, 0.65);
+  }
+});

src/data/aircraftRecession.js

@@ -242,7 +242,7 @@ export function applyAircraftBillboardTreatment({
 }
 
 /**
- * Apply the already-composed aircraft alpha to an ambient glTF model without
+ * Apply layer-owned hue and composed aircraft alpha to an ambient glTF model without
  * disturbing Cesium's existing MIX/colorBlendAmount presentation semantics.
  * @param {object} input
  * @param {object} input.model
@@ -261,7 +261,10 @@ export function applyAircraftModelTreatment({
   if (!model || !baseColor || !Number.isFinite(alpha)) return 0;
   if (
     Number.isFinite(model.color?.alpha) &&
-    Math.abs(model.color.alpha - alpha) <= tuning.writeEpsilon
+    Math.abs(model.color.alpha - alpha) <= tuning.writeEpsilon &&
+    model.color.red === baseColor.red &&
+    model.color.green === baseColor.green &&
+    model.color.blue === baseColor.blue
   )
     return 0;
   model.color = baseColor.withAlpha(alpha);

src/data/aircraftRecession.test.mjs

@@ -142,3 +142,15 @@ test('ambient model presentation receives composed alpha without changing blend
   assert.equal(model.colorBlendAmount, 0.9);
   assert.equal(applyAircraftModelTreatment({ model, baseColor: color, alpha: 0.2, params }), 0);
 });
+
+
+test('model hue changes at constant alpha, then clears without redundant writes', () => {
+  const color = (red,green,blue) => ({red,green,blue,withAlpha(alpha){return {red,green,blue,alpha};}});
+  const model = {color:color(1,1,1).withAlpha(0.65)};
+  assert.equal(applyAircraftModelTreatment({model,baseColor:color(1,0.2,0.2),alpha:0.65}),1);
+  assert.equal(model.color.green,0.2);
+  assert.equal(model.color.alpha,0.65);
+  assert.equal(applyAircraftModelTreatment({model,baseColor:color(1,0.2,0.2),alpha:0.65}),0);
+  assert.equal(applyAircraftModelTreatment({model,baseColor:color(1,1,1),alpha:0.65}),1);
+  assert.equal(model.color.green,1);
+});

src/data/ambiguous-camera-direction.test.mjs

@@ -0,0 +1,30 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { directionToHeading } from './directionText.js';
+test('conflicting facing directions cannot manufacture one heading', () => {
+  for (const bare of [false, true]) {
+    for (const value of ['NB / SB', 'EASTBOUND WESTBOUND', 'NE SW'])
+      assert.ok(Number.isNaN(directionToHeading(value, bare)), value);
+    assert.equal(directionToHeading('NB northbound', bare), 0);
+    assert.equal(directionToHeading('IH-35 SOUTHBOUND AT 15TH', bare), 180);
+  }
+  assert.ok(Number.isNaN(directionToHeading('North / East', true)));
+  assert.equal(directionToHeading('West / SR-24', true), 270);
+});
+
+test('travel tokens retain precedence over quadrant streets and bare words', () => {
+  for (const [text, heading] of [
+    ['I-5 NB at NE 45th St', 0],
+    ['SR 520 EB at NE 148th', 90],
+    ['US 13 SB @ SW Front St', 180],
+  ]) {
+    for (const bare of [false, true])
+      assert.equal(directionToHeading(text, bare), heading);
+  }
+  assert.equal(
+    directionToHeading('Hwy 401 east of Keele St - Westbound', true),
+    270,
+  );
+  assert.equal(directionToHeading('NE near West St', true), 45);
+  assert.ok(Number.isNaN(directionToHeading('NB SB near NE St', true)));
+});

src/data/cameraFraming.js

@@ -0,0 +1,15 @@
+import * as Cesium from 'cesium';
+
+/** Camera range with breathing room in both viewport dimensions. */
+export function rangeForBoundingSphere(viewer, radius) {
+  const frustum = viewer.camera?.frustum;
+  const verticalFov = Number(frustum?.fov) || Cesium.Math.toRadians(60);
+  const aspectRatio = Math.max(0.5, Number(frustum?.aspectRatio) || 1);
+  const horizontalFov = 2 * Math.atan(Math.tan(verticalFov / 2) * aspectRatio);
+  const limitingFov = Math.min(verticalFov, horizontalFov);
+  // Target 57% sphere occupancy so perspective still leaves at least 40%
+  // measured roof-to-base breathing room in ordinary oblique building views.
+  const occupiedViewportFraction = 0.57;
+  const desiredAngularRadius = (limitingFov * occupiedViewportFraction) / 2;
+  return (radius / Math.sin(desiredAngularRadius)) * 1.05;
+}

src/data/dataCredits.js

@@ -111,7 +111,7 @@ export const DATA_CREDITS = [
   {
     key: 'adsblol',
     html:
-      'Military flights, aircraft traces & bounded regional flight fallback: ' +
+      'Military flights, aircraft traces, bounded regional flight fallback & GNSS navigation integrity: ' +
       '<a href="https://adsb.lol" target="_blank" rel="noopener">adsb.lol</a> ' +
       '(ODbL 1.0)',
   },
@@ -169,6 +169,13 @@ export const DATA_CREDITS = [
   },
   OSM_CREDIT,
   OPENMAPTILES_CREDIT,
+  {
+    key: 'eccc-aqhi',
+    html:
+      'Air quality (AQHI): Environment and Climate Change Canada — MSC GeoMet ' +
+      '(<a href="https://eccc-msc.github.io/open-data/" target="_blank" rel="noopener">eccc-msc.github.io/open-data</a>) ' +
+      '· <a href="https://eccc-msc.github.io/open-data/licence/readme_en/" target="_blank" rel="noopener">ECCC Data Servers End-use Licence</a>',
+  },
   {
     key: 'overture-military-names',
     html: 'Military area names: <a href="https://overturemaps.org" target="_blank" rel="noopener">Overture Maps Foundation</a> (ODbL)',
@@ -271,7 +278,29 @@ export const DATA_CREDITS = [
   },
   {
     key: 'gbfs',
-    html: 'Bikeshare availability: GBFS operator feeds (e.g. Austin BCycle)',
+    html:
+      'Bikeshare availability: GBFS operator feeds ' +
+      '(e.g. Austin BCycle; Bike Share Toronto, operated by the Toronto Parking Authority)',
+  },
+  {
+    key: 'urbansharing-gbfs',
+    html:
+      'City bikes (Norway): contains data under the ' +
+      '<a href="https://data.norge.no/nlod/en/2.0" target="_blank" rel="noopener">Norwegian licence for Open Government data (NLOD)</a> ' +
+      'made available by Oslo Bysykkel, Bergen Bysykkel and Trondheim Bysykkel',
+  },
+  {
+    key: 'entur-mobility-gbfs',
+    html:
+      'City bikes (Stavanger, Skien/Porsgrunn): contains data under the ' +
+      '<a href="https://data.norge.no/nlod/en/2.0" target="_blank" rel="noopener">Norwegian licence for Open Government data (NLOD)</a> ' +
+      'made available by Entur (Kolumbus Bysykkel, Farte Bysykkel)',
+  },
+  {
+    key: 'jcdecaux-gbfs',
+    html:
+      'City bikes (Lillestrøm): Bysykkel Lillestrøm, JCDecaux — ' +
+      '<a href="https://developer.jcdecaux.com/files/Open-Licence-fr.pdf" target="_blank" rel="noopener">Licence Ouverte</a>',
   },
   {
     key: 'osrm-routing',

src/data/directionText.js

@@ -28,22 +28,34 @@ export function directionToHeading(value, allowBare = false) {
     .trim()
     .toUpperCase();
   if (!text) return NaN;
-  // Explicit travel/intercardinal forms — safe on free-form text (a street
-  // name almost never contains "NORTHBOUND" or a lone "NB" token).
-  if (/\bNORTHBOUND\b|\bNB\b/.test(text)) return 0;
-  if (/\bSOUTHBOUND\b|\bSB\b/.test(text)) return 180;
-  if (/\bEASTBOUND\b|\bEB\b/.test(text)) return 90;
-  if (/\bWESTBOUND\b|\bWB\b/.test(text)) return 270;
-  if (/\bNORTHEAST\b|\bNE\b/.test(text)) return 45;
-  if (/\bNORTHWEST\b|\bNW\b/.test(text)) return 315;
-  if (/\bSOUTHEAST\b|\bSE\b/.test(text)) return 135;
-  if (/\bSOUTHWEST\b|\bSW\b/.test(text)) return 225;
-  // Bare cardinals — dedicated direction fields only.
-  if (allowBare) {
-    if (/\bNORTH\b/.test(text)) return 0;
-    if (/\bSOUTH\b/.test(text)) return 180;
-    if (/\bEAST\b/.test(text)) return 90;
-    if (/\bWEST\b/.test(text)) return 270;
+  const tiers = [
+    [
+      [/\bNORTHBOUND\b|\bNB\b/, 0],
+      [/\bSOUTHBOUND\b|\bSB\b/, 180],
+      [/\bEASTBOUND\b|\bEB\b/, 90],
+      [/\bWESTBOUND\b|\bWB\b/, 270],
+    ],
+    [
+      [/\bNORTHEAST\b|\bNE\b/, 45],
+      [/\bNORTHWEST\b|\bNW\b/, 315],
+      [/\bSOUTHEAST\b|\bSE\b/, 135],
+      [/\bSOUTHWEST\b|\bSW\b/, 225],
+    ],
+  ];
+  if (allowBare)
+    tiers.push([
+      [/\bNORTH\b/, 0],
+      [/\bSOUTH\b/, 180],
+      [/\bEAST\b/, 90],
+      [/\bWEST\b/, 270],
+    ]);
+  for (const forms of tiers) {
+    const headings = new Set();
+    for (const [pattern, heading] of forms) {
+      if (pattern.test(text)) headings.add(heading);
+    }
+    if (headings.size)
+      return headings.size === 1 ? headings.values().next().value : NaN;
   }
   return NaN;
 }

src/data/firms-calendar-validity.test.mjs

@@ -0,0 +1,23 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { acquisitionMsUtc } from './firmsCsv.js';
+test('FIRMS acquisition dates cannot roll into a different calendar day', () => {
+  for (const [date, time] of [
+    ['2026-02-30', '1200'],
+    ['2026-04-31', '1200'],
+    ['2026-13-01', '1200'],
+    ['2026-07-16junk', '1200'],
+    ['2026-07-16', '2400'],
+    ['2026-07-16', '1260'],
+    ['2026-07-16', null],
+    ['2026-07-16', ''],
+  ]) {
+    assert.ok(Number.isNaN(acquisitionMsUtc(date, time)), `${date}:${time}`);
+  }
+  for (const [date, time, expected] of [
+    ['2024-02-29', '45', Date.UTC(2024, 1, 29, 0, 45)],
+    ['2026-07-16', '0', Date.UTC(2026, 6, 16)],
+  ]) {
+    assert.equal(acquisitionMsUtc(date, time), expected);
+  }
+});

src/data/firmsCsv.js

@@ -163,7 +163,13 @@ export function acquisitionMsUtc(acqDate, acqTime) {
     minutes > 59
   )
     return NaN;
-  return Date.UTC(year, month - 1, day, hours, minutes);
+  const ms = Date.UTC(year, month - 1, day, hours, minutes);
+  const parsed = new Date(ms);
+  return parsed.getUTCFullYear() === year &&
+    parsed.getUTCMonth() === month - 1 &&
+    parsed.getUTCDate() === day
+    ? ms
+    : NaN;
 }
 
 /**

src/data/flights.test.mjs

@@ -79,6 +79,12 @@ test('flights analyst record: full record maps every contract field', () => {
     aircraftClass: 'airliner',
     originCountry: 'United States',
     operator: 'Southwest Airlines',
+    squawk: null,
+    emergency: false,
+    emergencyKind: null,
+    emergencySource: null,
+    emergencyBroadcast: null,
+    lastContactAtMs: null,
     routeOrigin: 'AUS',
     routeDestination: 'LAX',
   });

src/data/gbfsProxy.test.mjs

@@ -1,6 +1,7 @@
 import { test } from 'node:test';
 import assert from 'node:assert/strict';
 import {
+  GBFS_CLIENT_IDENTIFIER,
   GBFS_MAX_BODY_BYTES,
   fetchGbfsUpstream,
 } from '../../server/providers/gbfs.js';
@@ -56,6 +57,41 @@ test('GBFS upstream fetch passes a direct 200 through unchanged', async () => {
   });
 });
 
+test('GBFS upstream fetch names the app in the Client-Identifier header', async () => {
+  let observedHeaders = null;
+  await fetchGbfsUpstream(
+    'https://gbfs.urbansharing.com/oslobysykkel.no/station_status.json',
+    {
+      fetchImpl: async (_url, options) => {
+        observedHeaders = options.headers;
+        return new Response(STATION_BODY, { status: 200 });
+      },
+    },
+  );
+  assert.equal(GBFS_CLIENT_IDENTIFIER, 'gods-eye-view');
+  assert.equal(observedHeaders['Client-Identifier'], GBFS_CLIENT_IDENTIFIER);
+});
+
+test('GBFS upstream fetch adds ET-Client-Name for Entur and only for Entur', async () => {
+  const headersFor = async (url) => {
+    let observed = null;
+    await fetchGbfsUpstream(url, {
+      fetchImpl: async (_url, options) => {
+        observed = options.headers;
+        return new Response(STATION_BODY, { status: 200 });
+      },
+    });
+    return observed;
+  };
+  const entur = await headersFor(
+    'https://api.entur.io/mobility/v2/gbfs/v2/kolumbusbysykkel/station_status',
+  );
+  assert.equal(entur['ET-Client-Name'], 'gods-eye-view-bikeshare');
+  assert.equal(entur['Client-Identifier'], GBFS_CLIENT_IDENTIFIER);
+  const lyft = await headersFor(STATION_URL);
+  assert.equal(lyft['ET-Client-Name'], undefined);
+});
+
 test('GBFS upstream fetch forwards a non-redirect error status for the middleware to relay', async () => {
   const result = await fetchGbfsUpstream(STATION_URL, {
     fetchImpl: async () => new Response(null, { status: 404 }),

src/data/gbfsSource.js

@@ -4,10 +4,35 @@ const GBFS_ALLOWED_HOSTS = new Set([
   'gbfs.bluebikes.com',
   'gbfs.bcycle.com',
   'gbfs.biketownpdx.com',
-  'gbfs.cogobikeshare.com',
+  'reddybikeshare.socialbicycles.com',
   'austin.publicbikesystem.net',
   'hon.publicbikesystem.net',
   'chat.publicbikesystem.net',
+  'gbfs.urbansharing.com',
+  'api.entur.io',
+  'api.cyclocity.fr',
+]);
+
+/**
+ * Hosts that serve more than GBFS keep the proxy to their GBFS tree: Entur's
+ * api.entur.io fronts every Entur API, and api.cyclocity.fr every JCDecaux
+ * contract endpoint.
+ */
+const GBFS_HOST_PATH_PREFIXES = new Map([
+  ['api.entur.io', '/mobility/v2/gbfs/'],
+  ['api.cyclocity.fr', '/contracts/'],
+]);
+
+/**
+ * Identifying headers an operator asks every GBFS client to send. Entur rate
+ * limits or blocks consumers that do not send ET-Client-Name, in the form
+ * "company-application".
+ */
+const GBFS_HOST_HEADERS = new Map([
+  [
+    'api.entur.io',
+    Object.freeze({ 'ET-Client-Name': 'gods-eye-view-bikeshare' }),
+  ],
 ]);
 
 /**
@@ -28,13 +53,40 @@ export function isAllowedGbfsHost(hostname) {
 }
 
 /**
- * Only allow station_information.json and station_status.json endpoints.
+ * Only allow station_information and station_status endpoints. The `.json`
+ * suffix is optional because Entur serves its feeds without one. When a
+ * hostname is given and that host serves more than GBFS, the path must also
+ * sit under the host's GBFS prefix.
  *
  * @param {string} pathname
+ * @param {string} [hostname]
  * @returns {boolean}
  */
-export function isAllowedGbfsPath(pathname) {
-  return /\/station_(information|status)\.json$/i.test(String(pathname || ''));
+export function isAllowedGbfsPath(pathname, hostname = '') {
+  const path = String(pathname || '');
+  if (!/\/station_(information|status)(\.json)?$/i.test(path)) return false;
+  const prefix = GBFS_HOST_PATH_PREFIXES.get(
+    String(hostname || '')
+      .trim()
+      .toLowerCase(),
+  );
+  return !prefix || path.startsWith(prefix);
+}
+
+/**
+ * Extra request headers an upstream GBFS host asks clients to send.
+ *
+ * @param {string} hostname
+ * @returns {Record<string, string>}
+ */
+export function gbfsUpstreamHeaders(hostname) {
+  return (
+    GBFS_HOST_HEADERS.get(
+      String(hostname || '')
+        .trim()
+        .toLowerCase(),
+    ) || {}
+  );
 }
 
 /**
@@ -47,7 +99,7 @@ export function isAllowedGbfsPath(pathname) {
  * @returns {string} Cache-Control header value.
  */
 export function gbfsCacheControl(pathname) {
-  if (/\/station_information\.json$/i.test(String(pathname || ''))) {
+  if (/\/station_information(\.json)?$/i.test(String(pathname || ''))) {
     return 'public, max-age=300';
   }
   return 'no-store';

src/data/geoImportImages.js

@@ -0,0 +1,74 @@
+// Inspect encoded headers before allowing the browser to decode local images.
+export const MAX_IMPORT_IMAGE_PIXELS = 16 * 1024 * 1024;
+const MAX_SIDE = 8192;
+
+/** Width and height from a supported raster header; no image is decoded. */
+export function importImageSize(bytes) {
+  const v = new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength);
+  const ascii = (at, n) => String.fromCharCode(...bytes.subarray(at, at + n));
+  const u24 = (at) => bytes[at] | (bytes[at + 1] << 8) | (bytes[at + 2] << 16);
+  if (
+    bytes.length >= 24 &&
+    v.getUint32(0) === 0x89504e47 &&
+    ascii(12, 4) === 'IHDR'
+  )
+    return [v.getUint32(16), v.getUint32(20)];
+  if (bytes.length >= 10 && /^GIF8[79]a$/.test(ascii(0, 6)))
+    return [v.getUint16(6, true), v.getUint16(8, true)];
+  if (bytes.length >= 26 && ascii(0, 2) === 'BM') {
+    if (v.getUint32(14, true) === 12)
+      return [v.getUint16(18, true), v.getUint16(20, true)];
+    return [Math.abs(v.getInt32(18, true)), Math.abs(v.getInt32(22, true))];
+  }
+  if (bytes.length >= 30 && ascii(0, 4) === 'RIFF' && ascii(8, 4) === 'WEBP') {
+    const kind = ascii(12, 4);
+    if (kind === 'VP8X') return [1 + u24(24), 1 + u24(27)];
+    if (kind === 'VP8 ' && u24(23) === 0x2a019d)
+      return [v.getUint16(26, true) & 0x3fff, v.getUint16(28, true) & 0x3fff];
+    if (kind === 'VP8L' && bytes[20] === 0x2f) {
+      const bits = v.getUint32(21, true);
+      return [(bits & 0x3fff) + 1, ((bits >>> 14) & 0x3fff) + 1];
+    }
+  }
+  if (bytes.length >= 4 && v.getUint16(0) === 0xffd8) {
+    for (let at = 2; at + 4 <= bytes.length;) {
+      if (bytes[at++] !== 0xff) break;
+      while (bytes[at] === 0xff) at++;
+      const marker = bytes[at++];
+      if (marker === 0xd9 || marker === 0xda) break;
+      if (marker === 1 || (marker >= 0xd0 && marker <= 0xd7)) continue;
+      const length = v.getUint16(at);
+      if (length < 2 || at + length > bytes.length) break;
+      if (
+        [
+          0xc0, 0xc1, 0xc2, 0xc3, 0xc5, 0xc6, 0xc7, 0xc9, 0xca, 0xcb, 0xcd,
+          0xce, 0xcf,
+        ].includes(marker) &&
+        length >= 8
+      )
+        return [v.getUint16(at + 5), v.getUint16(at + 3)];
+      at += length;
+    }
+  }
+  return null;
+}
+
+/** Charge each distinct encoded image once against the file's decoded budget. */
+export function createImportImageBudget() {
+  const seen = new Set();
+  let pixels = 0;
+  return (key, bytes) => {
+    if (seen.has(key)) return;
+    const size = importImageSize(bytes);
+    if (
+      !size ||
+      size.some((n) => !Number.isInteger(n) || n <= 0 || n > MAX_SIDE) ||
+      pixels + size[0] * size[1] > MAX_IMPORT_IMAGE_PIXELS
+    )
+      throw new Error(
+        'Local images exceed the decoded image limit or have an unreadable header.',
+      );
+    pixels += size[0] * size[1];
+    seen.add(key);
+  };
+}

src/data/geoImportPins.js

@@ -0,0 +1,128 @@
+import * as Cesium from 'cesium';
+
+const STYLE = [
+  'image',
+  'scale',
+  'rotation',
+  'alignedAxis',
+  'horizontalOrigin',
+  'verticalOrigin',
+  'color',
+  'eyeOffset',
+  'pixelOffset',
+  'width',
+  'height',
+  'scaleByDistance',
+  'translucencyByDistance',
+  'pixelOffsetScaleByDistance',
+  'distanceDisplayCondition',
+  'sizeInMeters',
+  'disableDepthTestDistance',
+  'imageSubRegion',
+];
+
+class ImportedBillboards extends Cesium.BillboardCollection {
+  update(frameState) {
+    // Height queries should find the map, never another imported marker.
+    // Ordinary click picks and rendered screenshots still include the pins.
+    if (frameState.passes.pick && frameState.passes.offscreen) return;
+    super.update(frameState);
+  }
+}
+
+/** Own static imported pins without a per-frame Entity visualizer walk. */
+export function createImportedPins(dataSource, viewer) {
+  const all = dataSource.entities.values.slice();
+  const now = Cesium.JulianDate.now();
+  const pins = all.filter((entity) => entity.billboard && entity.position);
+  if (!pins.length) return { mount() {}, sync() {}, destroy() {} };
+  const collection = new ImportedBillboards({ scene: viewer.scene });
+  const billboards = [];
+  try {
+    for (const entity of pins) {
+      const position = entity.position.getValue(now);
+      if (
+        !position ||
+        ![position.x, position.y, position.z].every(Number.isFinite)
+      )
+        throw new Error('Invalid imported point position.');
+      const options = {
+        id: entity,
+        position,
+        show:
+          entity.isShowing && entity.billboard.show?.getValue(now) !== false,
+        heightReference: Cesium.HeightReference.NONE,
+      };
+      for (const key of STYLE) {
+        const value = entity.billboard[key]?.getValue(now);
+        if (value !== undefined) options[key] = value;
+      }
+      billboards.push(collection.add(options));
+    }
+  } catch (error) {
+    collection.destroy();
+    throw error;
+  }
+  // Rebuild once before the source is added to DataSourceDisplay. Removing
+  // one entity at a time would itself make this transition quadratic.
+  dataSource.entities.suspendEvents();
+  try {
+    dataSource.entities.removeAll();
+    for (const entity of all)
+      if (!entity.billboard || !entity.position)
+        dataSource.entities.add(entity);
+  } finally {
+    dataSource.entities.resumeEvents();
+  }
+  Object.defineProperty(dataSource, 'importedEntities', {
+    value: all,
+    configurable: true,
+  });
+  Object.defineProperty(dataSource, 'importedBillboards', {
+    value: collection,
+    configurable: true,
+  });
+  let show = dataSource.show,
+    mounted = false,
+    destroyed = false;
+  Object.defineProperty(dataSource, 'show', {
+    configurable: true,
+    get: () => show,
+    set(value) {
+      show = Boolean(value);
+      dataSource.entities.show = show;
+      collection.show = show;
+    },
+  });
+  collection.show = show;
+  return {
+    mount() {
+      if (destroyed || mounted) return;
+      viewer.scene.primitives?.add(collection);
+      mounted = true;
+    },
+    sync() {
+      if (destroyed) return;
+      for (let i = 0; i < pins.length; i++) {
+        billboards[i].position = pins[i].position.getValue(now);
+        billboards[i].show =
+          pins[i].isShowing && pins[i].billboard.show?.getValue(now) !== false;
+      }
+      viewer.scene.requestRender?.();
+    },
+    destroy() {
+      if (destroyed) return;
+      destroyed = true;
+      if (viewer.trackedEntity && pins.includes(viewer.trackedEntity))
+        viewer.trackedEntity = undefined;
+      if (viewer.selectedEntity && pins.includes(viewer.selectedEntity))
+        viewer.selectedEntity = undefined;
+      if (mounted && !viewer.scene.primitives?.isDestroyed?.())
+        viewer.scene.primitives?.remove(collection);
+      if (!collection.isDestroyed()) collection.destroy();
+      all.length = 0;
+      pins.length = 0;
+      billboards.length = 0;
+    },
+  };
+}

src/data/gnssIntegrityProxy.test.mjs

@@ -0,0 +1,429 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  gnssIntegrityAnchor,
+  gnssIntegrityProxy,
+  gnssRetryCooldownMs,
+} from '../../server/providers/gnssIntegrity.js';
+
+const snapshot = {
+  now: 4_000_000_000_000,
+  ac: [
+    {
+      hex: '4ca7b5',
+      type: 'adsb_icao',
+      version: 2,
+      alt_baro: 36000,
+      lat: 50.1,
+      lon: 19.9,
+      nic: 0,
+      nac_p: 0,
+      seen_pos: 1,
+      flight: 'RYR1AB  ',
+      r: 'EI-ABC',
+    },
+    { hex: '000001', type: 'mlat', lat: 50, lon: 20, nic: 0, nac_p: 0 },
+  ],
+};
+
+function install(options = {}, hook = 'configureServer') {
+  let handler;
+  const plugin = gnssIntegrityProxy({ monotonicNow: options.now, ...options });
+  assert.equal(plugin.name, 'gnss-integrity');
+  plugin[hook]({
+    middlewares: {
+      use(path, callback) {
+        assert.equal(path, '/api/gnss-integrity');
+        handler = callback;
+      },
+    },
+  });
+  return async (url = '/?lat=50&lon=20', method = 'GET', peer = 'local') => {
+    const res = {
+      writeHead(status, headers) {
+        this.status = status;
+        this.headers = headers;
+      },
+      end(body) {
+        this.body = JSON.parse(body);
+      },
+    };
+    await handler({ url, method, socket: { remoteAddress: peer } }, res);
+    return res;
+  };
+}
+
+test('anchors snap to whole degrees and reject missing or out-of-range values', () => {
+  assert.deepEqual(gnssIntegrityAnchor('/?lat=50.44&lon=19.51'), {
+    lat: 50,
+    lon: 20,
+  });
+  assert.equal(gnssIntegrityAnchor('/?lat=91&lon=0'), null);
+  assert.equal(gnssIntegrityAnchor('/?lat=0&lon=-181'), null);
+  assert.equal(gnssIntegrityAnchor('/?lat=0'), null);
+  assert.equal(gnssIntegrityAnchor('/?lat=abc&lon=1'), null);
+});
+
+for (const hook of ['configureServer', 'configurePreviewServer']) {
+  test(`${hook}: fetches the fixed adsb.lol origin and returns only integrity facts`, async () => {
+    const calls = [];
+    const request = install(
+      {
+        now: () => 1234,
+        fetchImpl: async (url, options) => {
+          calls.push(url);
+          assert.ok(options.signal instanceof AbortSignal);
+          assert.equal(options.redirect, 'error');
+          return Response.json(snapshot);
+        },
+      },
+      hook,
+    );
+    const res = await request(
+      '/?lat=50.2&lon=19.8&url=https://invalid.example',
+    );
+    assert.equal(res.status, 200);
+    assert.deepEqual(calls, ['https://api.adsb.lol/v2/lat/50/lon/20/dist/250']);
+    assert.deepEqual(res.body, {
+      fetchedAt: 1234,
+      ageMs: 0,
+      anchor: { lat: 50, lon: 20 },
+      radiusNm: 250,
+      classifier: 'gev-nic-nacp-v2',
+      rows: [
+        {
+          hex: '4ca7b5',
+          lat: 50.1,
+          lon: 19.9,
+          nic: 0,
+          nacp: 0,
+          gpsLost: false,
+          degraded: true,
+        },
+      ],
+    });
+    assert.equal(res.headers['Cache-Control'], 'no-store');
+  });
+}
+
+test('snapshots are cached per anchor and concurrent reads share one upstream call', async () => {
+  let clock = 0;
+  let calls = 0;
+  const request = install({
+    now: () => clock,
+    fetchImpl: async () => {
+      calls += 1;
+      return Response.json(snapshot);
+    },
+  });
+  await Promise.all([request(), request('/?lat=50.3&lon=20.2')]);
+  assert.equal(calls, 1);
+  clock = 59_000;
+  const cached = await request();
+  assert.equal(calls, 1);
+  assert.equal(cached.body.fetchedAt, 0);
+  assert.equal(
+    cached.body.ageMs,
+    59_000,
+    'a cached answer reports its age on the server clock',
+  );
+  clock = 61_000;
+  await request();
+  assert.equal(calls, 2);
+  await request('/?lat=10&lon=10');
+  assert.equal(calls, 3);
+});
+
+test('an upstream failure serves the last snapshot as stale, else 502', async () => {
+  let clock = 0;
+  let fail = false;
+  const request = install({
+    now: () => clock,
+    fetchImpl: async () =>
+      fail ? new Response('down', { status: 503 }) : Response.json(snapshot),
+  });
+  await request();
+  fail = true;
+  clock = 120_000;
+  const stale = await request();
+  assert.equal(stale.status, 200);
+  assert.equal(stale.body.stale, true);
+  assert.equal(
+    stale.body.fetchedAt,
+    0,
+    'a stale answer keeps the time it was observed',
+  );
+  assert.equal(stale.body.ageMs, 120_000);
+  assert.equal(stale.headers['X-Data-Stale'], 'true');
+  const missing = await request('/?lat=-10&lon=-10');
+  assert.equal(missing.status, 502);
+  assert.deepEqual(missing.body, { error: 'gnss_integrity_unavailable' });
+});
+
+test('a stale snapshot older than the layer window is no longer served', async () => {
+  let clock = 0;
+  let fail = false;
+  const request = install({
+    now: () => clock,
+    fetchImpl: async () =>
+      fail ? new Response('down', { status: 503 }) : Response.json(snapshot),
+  });
+  await request();
+  fail = true;
+  clock = 30 * 60_000;
+  assert.equal((await request()).status, 200);
+  clock = 30 * 60_000 + 1;
+  const expired = await request();
+  assert.equal(expired.status, 502);
+  assert.deepEqual(expired.body, { error: 'gnss_integrity_unavailable' });
+});
+
+test('an upstream 429 starts a cooldown with no further upstream calls', async () => {
+  let clock = 0;
+  let calls = 0;
+  const request = install({
+    now: () => clock,
+    fetchImpl: async () => {
+      calls += 1;
+      return new Response('slow down', {
+        status: 429,
+        headers: { 'retry-after': '90' },
+      });
+    },
+  });
+  const first = await request();
+  assert.equal(first.status, 429);
+  assert.equal(first.headers['Retry-After'], '90');
+  clock = 30_500;
+  const cooling = await request('/?lat=1&lon=1');
+  assert.equal(cooling.status, 429);
+  // The browser is told the remaining shared cooldown, rounded up.
+  assert.equal(cooling.headers['Retry-After'], '60');
+  assert.equal(calls, 1);
+  clock = 91_000;
+  await request('/?lat=2&lon=2');
+  assert.equal(calls, 2);
+});
+
+test('Retry-After accepts sane seconds or HTTP dates up to one hour', () => {
+  const nowMs = Date.parse('2026-09-29T12:00:00Z');
+  assert.equal(gnssRetryCooldownMs('30', nowMs), 30_000);
+  assert.equal(gnssRetryCooldownMs('1', nowMs), 5_000);
+  assert.equal(gnssRetryCooldownMs('3600', nowMs), 3_600_000);
+  assert.equal(
+    gnssRetryCooldownMs('Tue, 29 Sep 2026 13:00:00 GMT', nowMs),
+    3_600_000,
+  );
+  assert.equal(gnssRetryCooldownMs('1e309', nowMs), 60_000);
+  assert.equal(
+    gnssRetryCooldownMs('Tue, 29 Sep 2026 12:00:45 GMT', nowMs),
+    45_000,
+  );
+  // Garbage, a past date or no header fall back to the default minute.
+  assert.equal(gnssRetryCooldownMs('soon', nowMs), 60_000);
+  assert.equal(
+    gnssRetryCooldownMs('Tue, 29 Sep 2026 11:00:00 GMT', nowMs),
+    60_000,
+  );
+  assert.equal(gnssRetryCooldownMs(null, nowMs), 60_000);
+});
+
+test('overlapping 429s preserve the longest shared deadline', async () => {
+  let clock = 0,
+    calls = 0;
+  const pending = [];
+  const request = install({
+    now: () => clock,
+    fetchImpl: () => {
+      calls += 1;
+      return new Promise((resolve) => pending.push(resolve));
+    },
+  });
+  const long = request('/?lat=1&lon=0'),
+    short = request('/?lat=2&lon=0');
+  await new Promise((resolve) => setImmediate(resolve));
+  pending[0](
+    new Response('', { status: 429, headers: { 'Retry-After': '3600' } }),
+  );
+  assert.equal((await long).headers['Retry-After'], '3600');
+  clock = 1000;
+  pending[1](
+    new Response('', { status: 429, headers: { 'Retry-After': '5' } }),
+  );
+  assert.equal((await short).headers['Retry-After'], '3599');
+  clock = 7000;
+  assert.equal((await request('/?lat=3&lon=0')).status, 429);
+  assert.equal(calls, 2);
+  clock = 3_600_001;
+  const resumed = request('/?lat=3&lon=0');
+  await new Promise((resolve) => setImmediate(resolve));
+  pending[2](Response.json(snapshot));
+  assert.equal((await resumed).status, 200);
+  assert.equal(calls, 3);
+});
+
+test('a cached anchor keeps serving its last snapshot as stale during a cooldown', async () => {
+  let clock = 0;
+  let limited = false;
+  let calls = 0;
+  const request = install({
+    now: () => clock,
+    fetchImpl: async () => {
+      calls += 1;
+      return limited
+        ? new Response('slow down', { status: 429 })
+        : Response.json(snapshot);
+    },
+  });
+  await request();
+  limited = true;
+  clock = 61_000;
+  // Another anchor trips the shared cooldown…
+  assert.equal((await request('/?lat=5&lon=5')).status, 429);
+  clock = 62_000;
+  // …and the cached anchor is answered from cache without an upstream call.
+  const stale = await request();
+  assert.equal(stale.status, 200);
+  assert.equal(stale.body.stale, true);
+  assert.equal(stale.body.rows.length, 1);
+  assert.equal(calls, 2);
+});
+
+test('an oversized upstream body is refused as 502 without being parsed', async () => {
+  const request = install({
+    fetchImpl: async () =>
+      new Response('{}', {
+        headers: { 'content-length': String(9 * 1024 * 1024) },
+      }),
+  });
+  const res = await request();
+  assert.equal(res.status, 502);
+  assert.deepEqual(res.body, { error: 'gnss_integrity_unavailable' });
+});
+
+test('the route rejects other methods, paths, bad anchors, a malformed feed and floods', async () => {
+  const request = install({
+    fetchImpl: async () => Response.json({ nope: true }),
+  });
+  assert.equal((await request('/', 'POST')).status, 405);
+  assert.equal((await request('/other?lat=1&lon=1')).status, 404);
+  assert.equal((await request('/?lat=1')).status, 400);
+  assert.equal((await request('/?lat=1&lon=1')).status, 502);
+  const flood = install({ fetchImpl: async () => Response.json(snapshot) });
+  let limited = 0;
+  for (let i = 0; i < 40; i += 1)
+    if ((await flood(`/?lat=${i}&lon=1`, 'GET', 'flood')).status === 429)
+      limited += 1;
+  assert.ok(limited > 0);
+});
+
+test('GERMAN: pathological retry deadlines are bounded', () => {
+  const at = Date.parse('2026-10-14T12:00:00Z');
+  assert.ok(gnssRetryCooldownMs('1e305', at) <= 3600000);
+  assert.equal(gnssRetryCooldownMs('9999999999999999999999', at), 3600000);
+  assert.equal(
+    gnssRetryCooldownMs('Wed, 14 Oct 2099 12:00:00 GMT', at),
+    3600000,
+  );
+  assert.equal(gnssRetryCooldownMs('0x10', at), 60000);
+});
+
+test('GERMAN: 5xx, network timeouts and malformed JSON share a short cooldown', async () => {
+  for (const fail of [
+    async () => new Response('', { status: 503 }),
+    async () => {
+      throw new DOMException('timeout', 'TimeoutError');
+    },
+    async () => new Response('bad JSON'),
+  ]) {
+    let clock = 0,
+      calls = 0;
+    const request = install({
+      now: () => clock,
+      fetchImpl: async () => {
+        calls++;
+        return fail();
+      },
+    });
+    assert.equal((await request()).status, 502);
+    clock = 14000;
+    assert.equal((await request('/?lat=1&lon=1')).status, 502);
+    assert.equal(calls, 1);
+    clock = 15001;
+    await request('/?lat=2&lon=2');
+    assert.equal(calls, 2);
+  }
+});
+
+test('GERMAN: source timestamp dates evidence; frozen old snapshots are rejected', async () => {
+  const now = 1800000000000;
+  const request = install({
+    now: () => now,
+    fetchImpl: async () =>
+      Response.json({ ...snapshot, now: (now - 120000) / 1000 }),
+  });
+  const res = await request();
+  assert.equal(res.body.ageMs, 120000);
+  assert.equal(res.body.stale, true);
+  for (const sourceNow of [(now - 1800001) / 1000, undefined, NaN]) {
+    const missing = install({
+      now: () => now,
+      fetchImpl: async () => Response.json({ ...snapshot, now: sourceNow }),
+    });
+    assert.equal((await missing()).status, 502);
+  }
+});
+
+test('GERMAN: cache age and cooldown remain stable across a wall-clock rollback', async () => {
+  let wall = 1800000000000,
+    mono = 0,
+    calls = 0;
+  const request = install({
+    now: () => wall,
+    monotonicNow: () => mono,
+    fetchImpl: async () => {
+      calls++;
+      return calls === 1
+        ? Response.json({ ...snapshot, now: wall / 1000 })
+        : new Response('', { status: 429, headers: { 'Retry-After': '60' } });
+    },
+  });
+  await request();
+  wall -= 3600000;
+  mono = 61000;
+  const stale = await request();
+  assert.equal(stale.body.ageMs, 61000);
+  assert.equal(stale.body.stale, true);
+  mono += 1000;
+  assert.equal((await request('/?lat=1&lon=1')).headers['Retry-After'], '59');
+  assert.equal(calls, 2);
+});
+
+test('GERMAN: cache hits and coalesced reads do not consume upstream admission', async () => {
+  let calls = 0;
+  const request = install({
+    now: () => 1800000000000,
+    fetchImpl: async () => {
+      calls++;
+      return Response.json(snapshot);
+    },
+  });
+  for (let i = 0; i < 100; i++) assert.equal((await request()).status, 200);
+  assert.equal((await request('/?lat=1&lon=1')).status, 200);
+  assert.equal(calls, 2);
+});
+
+test('GERMAN: distinct concurrent upstream reads are bounded', async () => {
+  const pending = [];
+  const request = install({
+    fetchImpl: () => new Promise((resolve) => pending.push(resolve)),
+  });
+  const jobs = Array.from({ length: 30 }, (_, i) =>
+    request(`/?lat=${i}&lon=1`),
+  );
+  await new Promise((resolve) => setImmediate(resolve));
+  assert.ok(pending.length <= 8);
+  pending.forEach((resolve) => resolve(Response.json(snapshot)));
+  const results = await Promise.all(jobs);
+  assert.ok(results.some((result) => result.status === 429));
+});

src/data/installationProxy.test.mjs

@@ -26,6 +26,7 @@ import {
   validMilitaryInstallationBox,
   writeMilitaryInstallationDisk,
 } from '../../vite.config.js';
+import { resolveOverpassUpstreamTag } from '../../server/providers/overpass/constants.js';
 
 const DAY_MS = 86_400_000;
 test('installation failure reasons disclose no raw upstream error and do not guess overload', () => {
@@ -274,3 +275,30 @@ test('an unwritable cache directory degrades to a miss instead of throwing', asy
     await fsp.rm(dir, { recursive: true, force: true });
   }
 });
+
+test('an installation entry is not served after OVERPASS_UPSTREAMS is repointed', async (t) => {
+  const prior = process.env.OVERPASS_UPSTREAMS;
+  t.after(() => {
+    if (prior === undefined) delete process.env.OVERPASS_UPSTREAMS;
+    else process.env.OVERPASS_UPSTREAMS = prior;
+  });
+  const dir = tempCacheDir();
+  const key = '30.250,-97.750,30.300,-97.700';
+  try {
+    process.env.OVERPASS_UPSTREAMS = 'https://a.example/api/interpreter,https://b.example/api/interpreter';
+    const tag = resolveOverpassUpstreamTag();
+    await writeMilitaryInstallationDisk(key, { ...entry(Date.now()), upstreams: tag }, dir);
+    assert.ok(await readMilitaryInstallationDisk(key, TTL_MS, dir), 'its own entry is a hit');
+    process.env.OVERPASS_UPSTREAMS = 'https://b.example/api/interpreter,https://a.example/api/interpreter';
+    assert.equal(resolveOverpassUpstreamTag(), tag, 'reordering the same instances keeps the tag');
+    process.env.OVERPASS_UPSTREAMS = 'https://c.example/api/interpreter';
+    assert.equal(await readMilitaryInstallationDisk(key, TTL_MS, dir), null, 'fresh read refused');
+    assert.equal(await readMilitaryInstallationDisk(key, Infinity, dir), null, 'stale read refused');
+    await writeMilitaryInstallationDisk('legacy', entry(Date.now()), dir);
+    assert.equal(await readMilitaryInstallationDisk('legacy', Infinity, dir), null, 'untagged entry refused');
+    delete process.env.OVERPASS_UPSTREAMS;
+    assert.ok(await readMilitaryInstallationDisk(key, Infinity, dir), 'nothing configured accepts any entry');
+  } finally {
+    fs.rmSync(dir, { recursive: true, force: true });
+  }
+});

src/data/layerState.js

@@ -296,6 +296,24 @@ function imageryPinOption(key, token) {
   });
 }
 
+function satelliteFilterOption() {
+  const percentage = boundedIntegerOption('infrared', 'i', 100, {
+    min: 0,
+    max: 100,
+  });
+  return Object.freeze({
+    ...percentage,
+    normalize: (value) =>
+      value === 'filtered'
+        ? 100
+        : value === 'full'
+          ? 0
+          : percentage.normalize(value),
+    decode: (value) =>
+      value === 'f' ? 100 : value === 'a' ? 0 : percentage.decode(value),
+  });
+}
+
 const OPTION_GROUPS = Object.freeze({
   traffic: Object.freeze([
     enumOption('roadMode', 'r', null, ['tomtom', 'osm', 'hybrid'], {
@@ -317,10 +335,7 @@ const OPTION_GROUPS = Object.freeze({
     }),
   ]),
   'weather-satellite': Object.freeze([
-    enumOption('infrared', 'i', 'filtered', ['filtered', 'full'], {
-      filtered: 'f',
-      full: 'a',
-    }),
+    satelliteFilterOption(),
     enumOption('opacity', 'o', 'strong', ['light', 'strong'], {
       light: 'l',
       strong: 's',
@@ -567,6 +582,11 @@ export const LAYER_STATE_TOKEN_RESERVATIONS =
  * owns stable URL ordering.
  */
 export const LAYER_STATE_REGISTRY = Object.freeze([
+  Object.freeze({
+    id: 'air-quality',
+    token: '4',
+    disposition: 'enabled-only',
+  }),
   Object.freeze({
     id: 'ais-live-vessels',
     token: 'a',
@@ -607,6 +627,11 @@ export const LAYER_STATE_REGISTRY = Object.freeze([
     disposition: 'enabled+options',
     optionOwner: 'flights',
   }),
+  Object.freeze({
+    id: 'gnss-integrity',
+    token: '3',
+    disposition: 'enabled-only',
+  }),
   Object.freeze({ id: 'local-dams', token: 'q', disposition: 'enabled-only' }),
   Object.freeze({
     id: 'local-datacenters',

src/data/layerState.test.mjs

@@ -202,8 +202,8 @@ function encode(state) {
 
 test('production registry is exact, canonical, and rejects incomplete contracts', async () => {
   assert.equal(validateLayerStateRegistry(), true);
-  assert.equal(REGISTERED_LAYER_IDS.length, 29);
-  assert.equal(new Set(REGISTERED_LAYER_IDS).size, 29);
+  assert.equal(REGISTERED_LAYER_IDS.length, 31);
+  assert.equal(new Set(REGISTERED_LAYER_IDS).size, 31);
   assert.ok(REGISTERED_LAYER_IDS.includes('transit'));
   assert.deepEqual(REGISTERED_LAYER_IDS, [...REGISTERED_LAYER_IDS].sort());
   assert.deepEqual(LEGACY_LAYER_STATE_TOKENS, {
@@ -242,19 +242,19 @@ test('production registry is exact, canonical, and rejects incomplete contracts'
   for (const [id, token] of Object.entries(LEGACY_LAYER_STATE_TOKENS)) {
     assert.equal(LAYER_STATE_TOKEN_RESERVATIONS[id], token);
   }
-  assert.equal(nextLayerStateToken(), '3');
+  assert.equal(nextLayerStateToken(), '5');
   assert.equal(
     nextLayerStateToken({
       ...LAYER_STATE_TOKEN_RESERVATIONS,
-      alpha: '3',
-      bravo: '4',
+      alpha: '5',
+      bravo: '6',
     }),
-    '5',
+    '7',
   );
   const digitsExhausted = {
     ...LAYER_STATE_TOKEN_RESERVATIONS,
     ...Object.fromEntries(
-      [...'3456789'].map((digit) => [`prior-${digit}`, digit]),
+      [...'56789'].map((digit) => [`prior-${digit}`, digit]),
     ),
   };
   assert.equal(nextLayerStateToken(digitsExhausted), '00');
@@ -307,8 +307,8 @@ test('production registry is exact, canonical, and rejects incomplete contracts'
   assert.equal(
     validateLayerStateAllocations(LAYER_STATE_TOKEN_RESERVATIONS, {
       ...LAYER_STATE_TOKEN_RESERVATIONS,
-      future: '3',
-      next: '4',
+      future: '5',
+      next: '6',
     }),
     true,
   );
@@ -318,7 +318,7 @@ test('production registry is exact, canonical, and rejects incomplete contracts'
         ...LAYER_STATE_TOKEN_RESERVATIONS,
         future: '00',
       }),
-    /next free token 3/,
+    /next free token 5/,
   );
   const beforeLastDigit = { ...digitsExhausted };
   delete beforeLastDigit['prior-9'];
@@ -341,10 +341,10 @@ test('production registry is exact, canonical, and rejects incomplete contracts'
   assert.throws(
     () =>
       validateLayerStateAllocations(
-        { ...LAYER_STATE_TOKEN_RESERVATIONS, merged: '3' },
-        { ...LAYER_STATE_TOKEN_RESERVATIONS, merged: '3', competing: '3' },
+        { ...LAYER_STATE_TOKEN_RESERVATIONS, merged: '5' },
+        { ...LAYER_STATE_TOKEN_RESERVATIONS, merged: '5', competing: '5' },
       ),
-    /next free token 4/,
+    /next free token 6/,
   );
   assert.throws(
     () => validateLayerStateAllocations({ future: '00' }, { future: '01' }),
@@ -2422,23 +2422,74 @@ test('wind appearance shares round trip while old links retain weather defaults'
   assert.deepEqual(invalid.options.wind, defaults);
 });
 
-test('observed weather round trips product and opacity without persisting historical playback', () => {
+test('observed weather round trips product and presets without persisting historical playback', () => {
   const state = normalizeLayerState({
     enabledLayerIds: ['weather-radar', 'weather-satellite'],
     options: {
       'weather-radar': { opacity: 'light', play: true },
-      'weather-satellite': { product: 'clouds', opacity: 'light', step: -1 },
+      'weather-satellite': {
+        product: 'clouds',
+        opacity: 'light',
+        infrared: 'filtered',
+        step: -1,
+      },
     },
   });
   const params = new URLSearchParams(encode(state));
   const decoded = decodeLayerStateParams(params);
   assert.deepEqual(decoded, state);
   assert.equal(state.options['weather-satellite'].product, 'clouds');
+  assert.equal(state.options['weather-satellite'].opacity, 'light');
+  assert.equal(state.options['weather-satellite'].infrared, 100);
   assert.equal(Object.hasOwn(state.options['weather-radar'], 'play'), false);
 });
 
-test('satellite infrared display mode round trips and invalid or absent values use filtered', () => {
-  for (const infrared of ['full', 'filtered', undefined, 'invalid']) {
+test('satellite filter strength percentages round-trip and legacy mode codes remain readable', () => {
+  const state = normalizeLayerState({
+    enabledLayerIds: ['weather-satellite'],
+    options: { 'weather-satellite': { infrared: 53, opacity: 'light' } },
+  });
+  const params = encodeLayerStateParams(
+    new URLSearchParams([['v', '2']]),
+    state,
+  );
+  assert.deepEqual(decodeLayerStateParams(params), state);
+  assert.equal(state.options['weather-satellite'].infrared, 53);
+  assert.equal(state.options['weather-satellite'].opacity, 'light');
+  for (const [legacy, expected] of [
+    ['f', 100],
+    ['a', 0],
+  ]) {
+    const decoded = decodeLayerStateParams(
+      new URLSearchParams(`v=2&l=o&lo=o.i.${legacy}`),
+    );
+    assert.equal(decoded.options['weather-satellite'].infrared, expected);
+  }
+  for (const [legacy, expected] of [
+    ['filtered', 100],
+    ['full', 0],
+  ]) {
+    const normalized = normalizeLayerState({
+      enabledLayerIds: ['weather-satellite'],
+      options: { 'weather-satellite': { infrared: legacy } },
+    });
+    assert.equal(normalized.options['weather-satellite'].infrared, expected);
+  }
+  const invalid = normalizeLayerState({
+    enabledLayerIds: ['weather-satellite'],
+    options: { 'weather-satellite': { infrared: 101 } },
+  });
+  assert.equal(invalid.options['weather-satellite'].infrared, 100);
+});
+
+test('satellite cloud filter round trips and invalid or absent values default to Clouds only', () => {
+  for (const [infrared, expected] of [
+    ['full', 0],
+    ['filtered', 100],
+    [53, 53],
+    [undefined, 100],
+    ['invalid', 100],
+  ]) {
     const state = normalizeLayerState({
       enabledLayerIds: ['weather-satellite'],
       options: {
@@ -2454,10 +2505,7 @@ test('satellite infrared display mode round trips and invalid or absent values u
       decodeLayerStateParams(new URLSearchParams(encode(state))),
       state,
     );
-    assert.equal(
-      state.options['weather-satellite'].infrared,
-      infrared === 'full' ? 'full' : 'filtered',
-    );
+    assert.equal(state.options['weather-satellite'].infrared, expected);
     assert.equal(
       Object.hasOwn(state.options['weather-satellite'], 'step'),
       false,
@@ -2639,6 +2687,23 @@ test('the recent-imagery split is share-link only: never stored locally, and a s
   );
 });
 
+test('GNSS interference uses digit 3 without colliding with other digit tokens', () => {
+  const decoded = decodeLayerStateParams(new URLSearchParams('v=2&l=3.2.1'));
+  assert.deepEqual(decoded.enabledLayerIds, [
+    'fire-perimeters',
+    'gnss-integrity',
+    'recent-imagery',
+  ]);
+  assert.equal(
+    LAYER_STATE_REGISTRY.find(({ id }) => id === 'gnss-integrity').token,
+    '3',
+  );
+  assert.deepEqual(
+    decodeLayerStateParams(new URLSearchParams(encode(decoded))),
+    decoded,
+  );
+});
+
 test('fire perimeters uses digit 2 without colliding with wind or recent imagery', () => {
   const decoded = decodeLayerStateParams(new URLSearchParams('v=2&l=2.k.1'));
   assert.deepEqual(decoded.enabledLayerIds, [

src/data/layerStateTokenLedger.test.mjs

@@ -128,13 +128,23 @@ test('reservation ledger is complete, pinned, and rejects duplicate or malformed
     { ...parseLayerStateTokenReservations(reservationRows) },
     { ...LAYER_STATE_TOKEN_RESERVATIONS },
   );
-  assert.equal(Object.keys(LAYER_STATE_TOKEN_RESERVATIONS).length, 29);
+  assert.equal(Object.keys(LAYER_STATE_TOKEN_RESERVATIONS).length, 31);
   assert.deepEqual(
     { ...LAYER_STATE_TOKEN_RESERVATIONS },
-    { ...LEGACY_LAYER_STATE_TOKENS, 'street-level': '0' },
+    {
+      ...LEGACY_LAYER_STATE_TOKENS,
+      'street-level': '0',
+      'gnss-integrity': '3',
+      'air-quality': '4',
+    },
   );
   assert.throws(
-    () => parseLayerStateTokenReservations(reservationRows.slice(1)),
+    () =>
+      parseLayerStateTokenReservations(
+        // Drop a legacy row by id; the first row sorts as air-quality, which
+        // is not a legacy reservation.
+        reservationRows.filter(([id]) => id !== 'ais-live-vessels'),
+      ),
     /Missing or changed legacy/,
   );
   assert.throws(
@@ -151,9 +161,9 @@ test('reservation ledger is complete, pinned, and rejects duplicate or malformed
     /Duplicate layer-state token reservation/,
   );
   assert.equal(
-    parseLayerStateTokenReservations([...reservationRows, ['future', '3']])
+    parseLayerStateTokenReservations([...reservationRows, ['future', '5']])
       .future,
-    '3',
+    '5',
   );
   assert.throws(
     () =>
@@ -171,14 +181,14 @@ test('reservation ledger is complete, pinned, and rejects duplicate or malformed
 
 test('published retired digits and competing PRs advance the merge-time allocation', () => {
   withPublishedBase(
-    { rows: [...reservationRows, ['retired-layer', '3']] },
+    { rows: [...reservationRows, ['retired-layer', '5']] },
     (cwd) => {
       const published = readPublishedLayerStateReservations('HEAD', cwd);
-      assert.equal(nextLayerStateToken(published), '4');
+      assert.equal(nextLayerStateToken(published), '6');
       assert.equal(
         validateLayerStateAllocations(published, {
           ...published,
-          newcomer: '4',
+          newcomer: '6',
         }),
         true,
       );
@@ -186,15 +196,15 @@ test('published retired digits and competing PRs advance the merge-time allocati
         () =>
           validateLayerStateAllocations(published, {
             ...published,
-            competing: '3',
+            competing: '5',
           }),
-        /next free token 4/,
+        /next free token 6/,
       );
       assert.throws(
         () =>
           validateLayerStateAllocations(published, {
             ...LAYER_STATE_TOKEN_RESERVATIONS,
-            newcomer: '3',
+            newcomer: '5',
           }),
         /changed or removed: retired-layer/,
       );
@@ -202,8 +212,8 @@ test('published retired digits and competing PRs advance the merge-time allocati
   );
 });
 
-test('PR B manually replaces provisional 3 with 4 after PR A publishes 3', () => {
-  withPublishedBase({ rows: [...reservationRows, ['pr-a', '3']] }, (cwd) => {
+test('PR B manually replaces provisional 5 with 6 after PR A publishes 5', () => {
+  withPublishedBase({ rows: [...reservationRows, ['pr-a', '5']] }, (cwd) => {
     mkdirSync(path.join(cwd, 'scripts'));
     const fixtureChecker = path.join(
       cwd,
@@ -224,8 +234,8 @@ test('PR B manually replaces provisional 3 with 4 after PR A publishes 3', () =>
 
     writeCodecFixture(
       cwd,
-      [...reservationRows, ['pr-b', '3']],
-      [{ id: 'pr-b', token: '3' }],
+      [...reservationRows, ['pr-b', '5']],
+      [{ id: 'pr-b', token: '5' }],
     );
     const beforeRebase = runCheck();
     assert.equal(beforeRebase.status, 1);
@@ -233,10 +243,10 @@ test('PR B manually replaces provisional 3 with 4 after PR A publishes 3', () =>
 
     writeCodecFixture(
       cwd,
-      [...reservationRows, ['pr-a', '3'], ['pr-b', '3']],
+      [...reservationRows, ['pr-a', '5'], ['pr-b', '5']],
       [
-        { id: 'pr-a', token: '3' },
-        { id: 'pr-b', token: '3' },
+        { id: 'pr-a', token: '5' },
+        { id: 'pr-b', token: '5' },
       ],
     );
     const staleRebase = runCheck();
@@ -244,16 +254,16 @@ test('PR B manually replaces provisional 3 with 4 after PR A publishes 3', () =>
     assert.match(staleRebase.stderr, /Duplicate layer-state token reservation/);
 
     const published = readPublishedLayerStateReservations('HEAD', cwd);
-    assert.equal(nextLayerStateToken(published), '4');
-    const validBaselineRows = [...reservationRows, ['pr-a', '3']];
-    writeCodecFixture(cwd, validBaselineRows, [{ id: 'pr-a', token: '3' }]);
+    assert.equal(nextLayerStateToken(published), '6');
+    const validBaselineRows = [...reservationRows, ['pr-a', '5']];
+    writeCodecFixture(cwd, validBaselineRows, [{ id: 'pr-a', token: '5' }]);
     const helper = spawnSync(
       process.execPath,
       [realpathSync(fixtureNext), 'pr-b'],
       { cwd, encoding: 'utf8' },
     );
     assert.equal(helper.status, 0, helper.stderr);
-    assert.match(helper.stdout, /pr-b: 4/);
+    assert.match(helper.stdout, /pr-b: 6/);
     assert.deepEqual(
       JSON.parse(readFileSync(path.join(cwd, LEDGER_PATH), 'utf8')),
       validBaselineRows,
@@ -261,20 +271,20 @@ test('PR B manually replaces provisional 3 with 4 after PR A publishes 3', () =>
     );
     writeCodecFixture(
       cwd,
-      [...reservationRows, ['pr-a', '3'], ['pr-b', '4']],
+      [...reservationRows, ['pr-a', '5'], ['pr-b', '6']],
       [
-        { id: 'pr-a', token: '3' },
-        { id: 'pr-b', token: '4' },
+        { id: 'pr-a', token: '5' },
+        { id: 'pr-b', token: '6' },
       ],
     );
     const corrected = runCheck();
     assert.equal(corrected.status, 0, corrected.stderr);
-    assert.match(corrected.stdout, /30 published, 1 new/);
+    assert.match(corrected.stdout, /32 published, 1 new/);
   });
 });
 
 test('allocation batches cross the last digit and base-36 pair boundaries in order', () => {
-  const digitRows = [...'3456789'].map((digit) => [`retired-${digit}`, digit]);
+  const digitRows = [...'56789'].map((digit) => [`retired-${digit}`, digit]);
   const allDigits = parseLayerStateTokenReservations([
     ...reservationRows,
     ...digitRows,
@@ -326,7 +336,7 @@ test('allocation batches cross the last digit and base-36 pair boundaries in ord
 test('an isolated valid two-character fixture round-trips an l field beyond the old 64-character cap', async () => {
   const cwd = mkdtempSync(path.join(tmpdir(), 'gev-layer-token-width-'));
   try {
-    const priorDigits = [...'3456789'].map((digit) => [
+    const priorDigits = [...'56789'].map((digit) => [
       `qa-prior-digit-${digit}`,
       digit,
     ]);
@@ -363,7 +373,7 @@ test('an isolated valid two-character fixture round-trips an l field beyond the
     const params = new URLSearchParams([['v', '2']]);
     codec.encodeLayerStateParams(params, state);
     assert.ok(params.get('l').length > 64, 'fixture must cross the old cap');
-    assert.equal(params.get('l').length, 69);
+    assert.equal(params.get('l').length, 73);
     const restored = codec.decodeLayerStateParams(params);
     assert.deepEqual(restored?.enabledLayerIds, expectedLayerIds);
     assert.deepEqual(restored?.options, state.options);
@@ -381,7 +391,7 @@ test('checker reads a complete future base ledger and rejects retired-token reus
     },
     (cwd) => {
       const published = readPublishedLayerStateReservations('HEAD', cwd);
-      assert.equal(Object.keys(published).length, 30);
+      assert.equal(Object.keys(published).length, 32);
       assert.equal(published['retired-layer'], '00');
       assert.throws(
         () =>

src/data/layerStateTokenReservations.json

@@ -1,4 +1,5 @@
 [
+  ["air-quality", "4"],
   ["ais-live-vessels", "a"],
   ["alpr-cameras", "p"],
   ["bhote-koshi-2026", "h"],
@@ -9,6 +10,7 @@
   ["earthquakes", "e"],
   ["fire-perimeters", "2"],
   ["flights", "f"],
+  ["gnss-integrity", "3"],
   ["local-dams", "q"],
   ["local-datacenters", "d"],
   ["local-firms", "w"],

src/data/militaryFlights.test.mjs

@@ -71,6 +71,12 @@ test('military analyst record: full record maps every contract field', () => {
     aircraftClass: 'widebody',
     originCountry: null,
     operator: 'United States Air Force',
+    squawk: null,
+    emergency: false,
+    emergencyKind: null,
+    emergencySource: null,
+    emergencyBroadcast: null,
+    lastContactAtMs: null,
     routeOrigin: null,
     routeDestination: null,
   });

src/data/radioProxy.test.mjs

@@ -1,5 +1,9 @@
 import assert from 'node:assert/strict';
+import { EventEmitter } from 'node:events';
+import https from 'node:https';
+import { Readable } from 'node:stream';
 import test from 'node:test';
+import { fetchPinnedRadioResponse } from '../../server/providers/radio/transport.js';
 import {
   createRadioProxyMiddleware,
   isPublicRadioAddress,
@@ -469,3 +473,63 @@ test('proxy rejects any hostname resolution containing a forbidden address befor
   }
   assert.equal(fetchCount, 0);
 });
+
+// Answer every pinned request with `status`, invoking the response callback
+// asynchronously as `https.request` does, outside the caller's promise.
+// The returned promise rejects on an uncaught exception, so a regression fails
+// the race at once instead of leaving the fetch pending.
+function mockMirrorStatus(t, status, statusMessage = '') {
+  let crash;
+  const crashed = new Promise((_resolve, reject) => (crash = reject));
+  const onUncaught = (error) =>
+    crash(new Error(`uncaught exception: ${error.message}`));
+  process.on('uncaughtException', onUncaught);
+  t.after(() => process.off('uncaughtException', onUncaught));
+  t.mock.method(https, 'request', (_url, _options, callback) => {
+    const request = new EventEmitter();
+    request.end = () =>
+      setImmediate(() =>
+        callback(
+          Object.assign(Readable.from([]), {
+            statusCode: status,
+            statusMessage,
+            headers: { 'content-type': 'application/json' },
+          }),
+        ),
+      );
+    return request;
+  });
+  return crashed;
+}
+
+function fetchMirror() {
+  return fetchPinnedRadioResponse(
+    new URL('https://de1.api.radio-browser.info/json/servers'),
+    { headers: {} },
+    [{ address: '93.184.216.34', family: 4 }],
+  );
+}
+
+for (const status of [204, 205, 304]) {
+  test(`a mirror answering null-body status ${status} resolves with a null body instead of crashing`, async (t) => {
+    const crashed = mockMirrorStatus(t, status);
+    const response = await Promise.race([fetchMirror(), crashed]);
+    assert.equal(response.status, status);
+    assert.equal(response.body, null);
+  });
+}
+
+for (const status of [600, 999]) {
+  test(`a mirror answering out-of-range status ${status} rejects instead of crashing`, async (t) => {
+    const crashed = mockMirrorStatus(t, status);
+    await assert.rejects(
+      Promise.race([fetchMirror(), crashed]),
+      new RegExp(`unsupported status ${status}`),
+    );
+  });
+}
+
+test('a mirror answering an invalid reason phrase rejects instead of crashing', async (t) => {
+  const crashed = mockMirrorStatus(t, 200, 'OK\x7f');
+  await assert.rejects(Promise.race([fetchMirror(), crashed]), TypeError);
+});

src/data/regional-calendar-evidence.test.mjs

@@ -0,0 +1,43 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { normalizeRegionalArticles } from './regionalModel.js';
+test('compact source dates must denote an actual calendar instant', () => {
+  for (const date of [
+    '20260230T120000Z',
+    '20260431T120000Z',
+    '20261301T120000Z',
+    '20260716T240000Z',
+    '20260716T126000Z',
+    '20260716T120060Z',
+  ]) {
+    const [article] = normalizeRegionalArticles({
+      articles: [
+        {
+          title: 'Fixture',
+          url: 'https://fixture.example/news',
+          seendate: date,
+        },
+      ],
+    });
+    assert.equal(article.publishedAt, null, date);
+    assert.equal(article.title, 'Fixture');
+  }
+  for (const [input, expected] of [
+    ['20240229T004500Z', '2024-02-29T00:45:00Z'],
+    ['20260716T000000Z', '2026-07-16T00:00:00Z'],
+    ['2026-07-16T12:00:00Z', '2026-07-16T12:00:00.000Z'],
+  ]) {
+    assert.equal(
+      normalizeRegionalArticles({
+        articles: [
+          {
+            title: 'Fixture',
+            url: 'https://fixture.example/news',
+            seendate: input,
+          },
+        ],
+      })[0].publishedAt,
+      expected,
+    );
+  }
+});

src/data/regionalModel.js

@@ -67,11 +67,20 @@ export function normalizeRegionalArticles(payload, limit = MAX_ARTICLES) {
     seen.add(signature);
     const rawDate = cleanText(row?.seendate, 32);
     const compactDate = /^(\d{8})T(\d{6})Z$/.exec(rawDate);
-    const publishedAt = compactDate
+    const candidateDate = compactDate
       ? `${compactDate[1].slice(0, 4)}-${compactDate[1].slice(4, 6)}-${compactDate[1].slice(6, 8)}T${compactDate[2].slice(0, 2)}:${compactDate[2].slice(2, 4)}:${compactDate[2].slice(4, 6)}Z`
-      : Number.isNaN(Date.parse(rawDate))
-        ? null
-        : new Date(rawDate).toISOString();
+      : rawDate;
+    const parsedMs = Date.parse(candidateDate);
+    const validDate =
+      Number.isFinite(parsedMs) &&
+      (!compactDate ||
+        new Date(parsedMs).toISOString().slice(0, 19) ===
+          candidateDate.slice(0, 19));
+    const publishedAt = validDate
+      ? compactDate
+        ? candidateDate
+        : new Date(parsedMs).toISOString()
+      : null;
     articles.push({
       title,
       url,

src/data/terrainHeightsProxy.js

@@ -35,7 +35,13 @@ export function parseTerrainPoints(raw) {
     if (parts.length !== 2) return null;
     const lon = Number(parts[0]);
     const lat = Number(parts[1]);
-    if (!Number.isFinite(lon) || !Number.isFinite(lat)) return null;
+    if (
+      !Number.isFinite(lon) ||
+      !Number.isFinite(lat) ||
+      Math.abs(lon) > 180 ||
+      Math.abs(lat) > 90
+    )
+      return null;
     points.push([lon, lat]);
   }
   return points;

src/data/terrainHeightsProxy.test.mjs

@@ -3,6 +3,7 @@
 import { test } from 'node:test';
 import assert from 'node:assert/strict';
 import {
+  parseTerrainPoints,
   fetchTerrainChunkWithRetry,
   resolveTerrainHeightRequest,
   terrainPointKey,
@@ -227,3 +228,13 @@ test('malformed height objects remain refresh failures, not absent readings', as
     assert.equal(response.cacheChanged, false);
   }
 });
+
+test('terrain parser rejects out-of-range WGS84 points and accepts inclusive bounds', () => {
+  for (const value of ['181,0', '-181,0', '0,91', '0,-91', '1,2;0,91'])
+    assert.equal(parseTerrainPoints(value), null, value);
+  assert.deepEqual(parseTerrainPoints('-180,-90;180,90;0,0'), [
+    [-180, -90],
+    [180, 90],
+    [0, 0],
+  ]);
+});

src/dockerLauncher.test.mjs

@@ -0,0 +1,77 @@
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import test from 'node:test';
+import {
+  defaultGatewayFromRouteTable,
+  unwritableRootWarning,
+  resolveTrustedPeers,
+} from '../scripts/docker-start.mjs';
+
+// The shape of /proc/net/route inside a bridge-networked container:
+// little-endian hex addresses, the default route first, an interface route
+// after.
+const BRIDGE_ROUTES = [
+  'Iface\tDestination\tGateway \tFlags\tRefCnt\tUse\tMetric\tMask\t\tMTU\tWindow\tIRTT',
+  'eth0\t00000000\t0100A8C0\t0003\t0\t0\t0\t00000000\t0\t0\t0',
+  'eth0\t0000A8C0\t00000000\t0001\t0\t0\t0\t00F0FFFF\t0\t0\t0',
+  '',
+].join('\n');
+
+test('the container gateway is decoded from the kernel routing table', () => {
+  assert.equal(defaultGatewayFromRouteTable(BRIDGE_ROUTES), '192.168.0.1', 'little-endian hex, default route only');
+  assert.equal(
+    defaultGatewayFromRouteTable(BRIDGE_ROUTES.replace('0100A8C0', '011FAC')),
+    null,
+    'a malformed gateway field is not an address',
+  );
+  assert.equal(
+    defaultGatewayFromRouteTable(BRIDGE_ROUTES.replace('\t0003\t', '\t0002\t')),
+    null,
+    'a default route that is not up is ignored',
+  );
+  assert.equal(
+    defaultGatewayFromRouteTable(BRIDGE_ROUTES.replace('0100A8C0', '00000000')),
+    null,
+    'a zero gateway is not an address',
+  );
+  assert.equal(
+    defaultGatewayFromRouteTable(
+      BRIDGE_ROUTES.split('\n').filter((line) => !line.includes('00000000\t0100A8C0')).join('\n'),
+    ),
+    null,
+    '--network none has no default route and must not invent one',
+  );
+  assert.equal(defaultGatewayFromRouteTable(''), null);
+  assert.equal(defaultGatewayFromRouteTable(undefined), null);
+});
+
+test('an operator list wins, and no gateway trusts nothing', () => {
+  assert.equal(resolveTrustedPeers({ env: {}, routeTable: BRIDGE_ROUTES }), '192.168.0.1');
+  assert.equal(resolveTrustedPeers({ env: { GEV_KEY_SETUP_TRUSTED_PEERS: ' 10.9.8.7 ' }, routeTable: BRIDGE_ROUTES }), '10.9.8.7');
+  assert.equal(
+    resolveTrustedPeers({ env: { GEV_KEY_SETUP_TRUSTED_PEERS: '  ' }, routeTable: BRIDGE_ROUTES }),
+    '192.168.0.1',
+    'a blank override falls through to the gateway',
+  );
+  assert.equal(resolveTrustedPeers({ env: {}, routeTable: '' }), '', 'loopback-only when there is no gateway');
+});
+
+test('an unwritable checkout is named at start instead of failing quietly', () => {
+  const ids = { owner: { uid: 0, gid: 0 }, runAs: { uid: 1000, gid: 1000 } };
+  assert.equal(unwritableRootWarning({ root: '/app', writable: true, ...ids }), null, 'a writable checkout says nothing');
+  const warning = unwritableRootWarning({ root: '/app', writable: false, ...ids });
+  assert.match(warning, /owned by 0:0/, 'names the owner');
+  assert.match(warning, /runs as 1000:1000/, 'names the ids the container runs as');
+  assert.match(warning, /chown -R 1000:1000/, 'offers handing the checkout to the container user first');
+  assert.match(warning, /env UID=0 GID=0 docker compose up/, 'or the env form, which bash does not ignore');
+});
+
+test('the Docker install path keeps its loopback-only, launcher-owned contract', () => {
+  const dockerfile = readFileSync(new URL('../Dockerfile', import.meta.url), 'utf8');
+  assert.match(dockerfile, /^CMD \["node", "scripts\/docker-start\.mjs"\]$/m, 'the launcher is the container entry point');
+
+  const compose = readFileSync(new URL('../compose.yaml', import.meta.url), 'utf8');
+  assert.match(compose, /^\s+- "127\.0\.0\.1:4173:4173"$/m, 'the port is published on the host loopback only');
+  assert.doesNotMatch(compose, /GEV_KEY_SETUP_TRUSTED_PEERS/, 'trust is derived at launch, never hard-coded');
+  assert.doesNotMatch(compose, /network_mode/, 'the container keeps its own network namespace');
+});

src/firstRunExperience.test.mjs

@@ -673,11 +673,12 @@ test('the voice TOOL SCHEMA matches the pinned contract — the mission mapping
   // referent-only track_entity alternative (kept out of the model-facing
   // schema, which may not carry top-level anyOf), and Contacts requested-radius
   // list descriptions; the missions still ride existing tools.
-  // Street Level adds toggle enum values and the generated alias hint.
-  assert.equal(block.length, 29802, 'serialized tool schema length drifted');
+  // Street Level and GNSS extend the manifest; broadcast caveats describe tracked and analyst aircraft.
+  // Air quality (ECCC AQHI) extends the manifest.
+  assert.equal(block.length, 30655, 'serialized tool schema length drifted');
   assert.equal(
     crypto.createHash('sha256').update(block).digest('hex'),
-    'b316ca2e67848eb565b6847ac044a19d1465d8ef8252a5dfbd7d947a2a36d5ed',
+    '3b1d5e77c10a92f6543a4f9d1ff1870101a0306b65e5b8a6113111c81eda371e',
     'the first-run missions must ride EXISTING tools: no schema edit, no cache bust',
   );
   const instructions = fs.readFileSync(new URL('../server/providers/openai/instructions.js', import.meta.url), 'utf8');

src/googleGeocodeProxy.test.mjs

@@ -0,0 +1,204 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  googlePlacesContextProxy,
+  validateGeocodeAddress,
+  geocodeBounds,
+} from '../vite.config.js';
+
+const UPSTREAM = 'https://geocode.test/json';
+
+function installRoutes({ apiKey = 'server-secret', fetchImpl } = {}) {
+  const routes = new Map();
+  googlePlacesContextProxy({
+    resolveApiKey: () => apiKey,
+    fetchImpl,
+    endpoints: { geocode: UPSTREAM },
+  }).configureServer({
+    middlewares: { use: (name, handler) => routes.set(name, handler) },
+  });
+  return routes;
+}
+
+function invokeRoute(handler, { method = 'GET', url = '/' } = {}) {
+  return new Promise((resolve, reject) => {
+    const headers = new Map();
+    const res = {
+      statusCode: 200,
+      setHeader(name, value) {
+        headers.set(String(name).toLowerCase(), String(value));
+      },
+      end(body = '') {
+        resolve({
+          statusCode: this.statusCode,
+          headers: Object.fromEntries(headers),
+          body: body ? JSON.parse(String(body)) : null,
+        });
+      },
+    };
+    Promise.resolve(
+      handler(
+        { method, url, headers: {}, socket: { remoteAddress: '127.0.0.1' } },
+        res,
+      ),
+    ).catch(reject);
+  });
+}
+
+test('geocoder query and viewport bias are validated before Google is paid', () => {
+  assert.deepEqual(validateGeocodeAddress(new URLSearchParams()), {
+    ok: false,
+    error: 'address is required',
+  });
+  assert.deepEqual(validateGeocodeAddress(new URLSearchParams({ address: '  ' })), {
+    ok: false,
+    error: 'address is required',
+  });
+  assert.deepEqual(
+    validateGeocodeAddress(new URLSearchParams({ address: 'x'.repeat(201) })),
+    { ok: false, error: 'address is too long' },
+  );
+  assert.deepEqual(
+    validateGeocodeAddress(new URLSearchParams({ address: ' Austin ' })),
+    { ok: true, address: 'Austin' },
+  );
+
+  // A bias only ranks results, so an unusable one is dropped, not refused.
+  const bias = '30.1,-97.9|30.4,-97.6';
+  assert.equal(geocodeBounds(new URLSearchParams({ bounds: bias })), bias);
+  for (const bounds of [
+    '',
+    '30.1,-97.9',
+    '30.1,-97.9|30.4',
+    'north,-97.9|30.4,-97.6',
+    '91,-97.9|30.4,-97.6',
+    '30.1,-181|30.4,-97.6',
+    // A blank component must not read as 0 — that is the equator, not a corner.
+    '30.1,-97.9|30.4,',
+    '30.1,|30.4,-97.6',
+    '30.1,-97.9| ,-97.6',
+  ])
+    assert.equal(geocodeBounds(new URLSearchParams({ bounds })), null);
+});
+
+test('the geocode routes keep the key server-side and answer in Google shape', async () => {
+  const upstream = [];
+  const routes = installRoutes({
+    fetchImpl: async (url) => {
+      upstream.push(new URL(String(url)));
+      return Response.json({ status: 'OK', results: [{ place_id: 'fixture' }] });
+    },
+  });
+  const forward = routes.get('/api/google/geocode');
+  const reverse = routes.get('/api/google/reverse-geocode');
+  assert.equal(typeof forward, 'function');
+  assert.equal(typeof reverse, 'function');
+
+  const forwarded = await invokeRoute(forward, {
+    url: '/?address=Austin&bounds=30.1,-97.9|30.4,-97.6',
+  });
+  assert.equal(forwarded.statusCode, 200);
+  assert.deepEqual(forwarded.body, {
+    status: 'OK',
+    results: [{ place_id: 'fixture' }],
+  });
+  assert.equal(upstream.at(-1).searchParams.get('address'), 'Austin');
+  assert.equal(upstream.at(-1).searchParams.get('bounds'), '30.1,-97.9|30.4,-97.6');
+  assert.equal(upstream.at(-1).searchParams.get('key'), 'server-secret');
+
+  const reversed = await invokeRoute(reverse, { url: '/?lat=30.27&lon=-97.74' });
+  assert.equal(reversed.statusCode, 200);
+  assert.equal(upstream.at(-1).searchParams.get('latlng'), '30.27,-97.74');
+  assert.equal(upstream.at(-1).searchParams.get('key'), 'server-secret');
+
+  // The key travels to Google, never back to the page that asked.
+  assert.ok(!JSON.stringify(forwarded.body).includes('server-secret'));
+  assert.ok(!JSON.stringify(reversed.body).includes('server-secret'));
+
+  // A malformed bias is dropped rather than forwarded.
+  await invokeRoute(forward, { url: '/?address=Austin&bounds=north' });
+  assert.equal(upstream.at(-1).searchParams.has('bounds'), false);
+});
+
+test('a bad or keyless geocode request never reaches Google', async () => {
+  const upstream = [];
+  const fetchImpl = async (url) => {
+    upstream.push(String(url));
+    return Response.json({ status: 'OK', results: [] });
+  };
+
+  const routes = installRoutes({ fetchImpl });
+  for (const [path, url] of [
+    ['/api/google/geocode', '/?address='],
+    ['/api/google/reverse-geocode', '/?lat=91&lon=-97.74'],
+  ]) {
+    const response = await invokeRoute(routes.get(path), { url });
+    assert.equal(response.statusCode, 400);
+    assert.deepEqual(response.body.results, []);
+    assert.equal(response.body.status, 'REQUEST_DENIED');
+  }
+
+  for (const path of ['/api/google/geocode', '/api/google/reverse-geocode']) {
+    const rejected = await invokeRoute(routes.get(path), {
+      method: 'POST',
+      url: '/?address=Austin&lat=30&lon=-97',
+    });
+    assert.equal(rejected.statusCode, 405);
+  }
+
+  // Keyless is an empty capability, not an outage: a 200 the browser adapters
+  // read as "this provider did not answer", so the chain moves on. It resolves
+  // ahead of validation, like the Places routes: with nothing configured there
+  // is no request to validate and no quota to protect.
+  const keyless = installRoutes({ apiKey: '  ', fetchImpl });
+  for (const path of ['/api/google/geocode', '/api/google/reverse-geocode'])
+    for (const url of ['/?address=Austin&lat=30&lon=-97', '/?address=&lat=91']) {
+      const response = await invokeRoute(keyless.get(path), { url });
+      assert.equal(response.statusCode, 200);
+      assert.equal(response.headers['cache-control'], 'no-store');
+      assert.deepEqual(response.body, {
+        configured: false,
+        status: 'REQUEST_DENIED',
+        results: [],
+        error: null,
+      });
+    }
+
+  assert.deepEqual(upstream, []);
+});
+
+test('an upstream failure reaches the browser as fixed public text', async () => {
+  const routes = installRoutes({
+    fetchImpl: async () => {
+      throw new Error('connect ECONNREFUSED 10.0.0.7:443');
+    },
+  });
+  for (const path of ['/api/google/geocode', '/api/google/reverse-geocode']) {
+    const response = await invokeRoute(routes.get(path), {
+      url: '/?address=Austin&lat=30&lon=-97',
+    });
+    assert.equal(response.statusCode, 502);
+    assert.deepEqual(response.body, {
+      status: 'UNKNOWN_ERROR',
+      results: [],
+      error: 'Google Geocoding request failed',
+    });
+  }
+});
+
+test('an oversized upstream body is dropped rather than buffered', async () => {
+  const routes = installRoutes({
+    // Two hundred times the 256 KiB ceiling, declared honestly.
+    fetchImpl: async () =>
+      Response.json({ status: 'OK', results: [{ pad: 'x'.repeat(52_428_800) }] }),
+  });
+  const response = await invokeRoute(routes.get('/api/google/geocode'), {
+    url: '/?address=Austin',
+  });
+  assert.equal(response.statusCode, 502);
+  assert.deepEqual(response.body, {
+    status: 'UNKNOWN_ERROR',
+    results: [],
+    error: 'Google Geocoding request failed',
+  });
+});

src/googleServerKey.test.mjs

@@ -67,11 +67,19 @@ test('the Street View tool resolves per-variable overrides before preferring the
   }
 });
 
-test('both Places routes select the intended key and keep it out of responses', async (t) => {
+test('every Google route selects the intended key and keeps it out of responses', async (t) => {
   const original = { server: process.env.GOOGLE_MAPS_SERVER_API_KEY, browser: process.env.GOOGLE_MAPS_API_KEY, limit: process.env.GEV_RATELIMIT_GOOGLE_PER_MIN };
   const calls = [];
   t.mock.method(globalThis, 'fetch', async (url, options) => {
-    calls.push({ url, key: options.headers['X-Goog-Api-Key'] });
+    // Places sends the key as a header; Geocoding's web service takes it as a
+    // query parameter. Either way it must be the server key, and never the
+    // browser's copy of it.
+    calls.push({
+      url,
+      key:
+        options?.headers?.['X-Goog-Api-Key'] ??
+        new URL(String(url)).searchParams.get('key'),
+    });
     return Response.json({ places: [] });
   });
   try {
@@ -88,12 +96,12 @@ test('both Places routes select the intended key and keep it out of responses',
       for (const install of ['configureServer', 'configurePreviewServer']) {
         const routes = new Map();
         googlePlacesContextProxy()[install]({ middlewares: { use: (name, handler) => routes.set(name, handler) } });
-        assert.equal(routes.size, 2);
+        assert.equal(routes.size, 4);
         for (const handler of routes.values()) {
           const before = calls.length;
           let body;
           const res = { setHeader() {}, end(value) { body = value; } };
-          await handler({ method: 'GET', url: '/?lat=30&lon=-97&q=capitol', headers: {}, socket: { remoteAddress: '127.0.0.1' } }, res);
+          await handler({ method: 'GET', url: '/?lat=30&lon=-97&q=capitol&address=capitol', headers: {}, socket: { remoteAddress: '127.0.0.1' } }, res);
           assert.equal(res.statusCode, 200);
           assert.ok(!body.includes('server-secret'));
           if (expected) {

src/keySetupCore.mjs

@@ -126,6 +126,32 @@ const LOCAL_HOSTNAMES = new Set(['localhost', '127.0.0.1', '::1', '[::1]']);
 /** Socket addresses that count as this machine. */
 const LOOPBACK_ADDRESSES = new Set(['127.0.0.1', '::1', '::ffff:127.0.0.1']);
 
+/**
+ * Whether a socket address is one the operator has explicitly declared to be
+ * this machine through GEV_KEY_SETUP_TRUSTED_PEERS: a comma-separated list of
+ * EXACT addresses, never wildcards, prefixes or hostnames. Unset trusts
+ * nothing, which is every launcher but one.
+ *
+ * The shipped use is the Docker launcher (scripts/docker-start.mjs). A port
+ * published on the host's loopback still reaches the container FROM the
+ * container network's gateway, never from 127.0.0.1, so the loopback check
+ * alone refuses the very machine running the server. Admitting that one
+ * address relaxes nothing else: the sharing, Host, Origin, Content-Type and
+ * proxy-header checks all still apply to it.
+ */
+function isTrustedPeerAddress(remoteAddress, env) {
+  const normalize = (value) =>
+    String(value || '')
+      .trim()
+      .toLowerCase()
+      .replace(/^::ffff:/, '');
+  const address = normalize(remoteAddress);
+  if (!address) return false;
+  return String(env?.GEV_KEY_SETUP_TRUSTED_PEERS || '')
+    .split(',')
+    .some((entry) => entry.trim() !== '' && normalize(entry) === address);
+}
+
 /** Parse an exact local request authority from a Host header. */
 function localAuthority(hostHeader, protocol) {
   const raw = String(hostHeader || '')
@@ -224,7 +250,9 @@ export function isSharingEnabled(env = {}) {
  *    outright — a credential-writing endpoint has no business existing on a
  *    shared instance, and tunnel traffic reaches the server FROM loopback, so
  *    the socket check below cannot carry that boundary alone;
- *  - loopback socket: refuses LAN peers when the server is bound wide;
+ *  - loopback socket: refuses LAN peers when the server is bound wide. The
+ *    only exception is an exact address listed in
+ *    GEV_KEY_SETUP_TRUSTED_PEERS, and every check below still applies to it;
  *  - local Host header: tunnel and DNS-rebinding traffic carries a foreign
  *    Host even when the socket says loopback;
  *  - exact same Origin on POST: a hostile web page can make a browser POST to
@@ -274,7 +302,10 @@ export function admitKeySetupRequest({
       error: 'Provider Settings is disabled while sharing is enabled',
     };
   }
-  if (!LOOPBACK_ADDRESSES.has(String(remoteAddress || ''))) {
+  if (
+    !LOOPBACK_ADDRESSES.has(String(remoteAddress || '')) &&
+    !isTrustedPeerAddress(remoteAddress, env)
+  ) {
     return {
       ok: false,
       status: 403,

src/keySetupCore.test.mjs

@@ -259,6 +259,23 @@ test('the admission gate refuses every non-local shape, one assertion per refusa
   assert.equal(admitKeySetupRequest({ ...local, env: { PINOKIO_SHARE_LOCAL: '1' } }).ok, false, 'LAN sharing disables the surface');
   // A LAN peer reaching a wide-bound server.
   assert.equal(admitKeySetupRequest({ ...local, remoteAddress: '192.168.1.20' }).ok, false, 'non-loopback socket refused');
+  // A container publishes its port on the host's loopback, yet the host's own
+  // browser still arrives from the container network's gateway. Only an exact
+  // address the operator listed admits it, and nothing else is relaxed.
+  const trusted = { GEV_KEY_SETUP_TRUSTED_PEERS: ' 10.0.0.9 , 172.29.73.1 ' };
+  const gateway = { ...local, remoteAddress: '172.29.73.1' };
+  assert.equal(admitKeySetupRequest(gateway).ok, false, 'container gateway refused without the opt-in');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: trusted }).ok, true, 'listed peer admitted');
+  assert.equal(admitKeySetupRequest({ ...gateway, remoteAddress: '::ffff:172.29.73.1', env: trusted }).ok, true, 'IPv4-mapped form of a listed peer admitted');
+  assert.equal(admitKeySetupRequest({ ...local, remoteAddress: '192.168.1.20', env: trusted }).ok, false, 'unlisted peer still refused');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: { GEV_KEY_SETUP_TRUSTED_PEERS: '*' } }).ok, false, 'wildcards are not addresses');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: { GEV_KEY_SETUP_TRUSTED_PEERS: '172.29.73.0/24' } }).ok, false, 'prefixes are not addresses');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: { GEV_KEY_SETUP_TRUSTED_PEERS: '' } }).ok, false, 'an empty list trusts nothing');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: { GEV_KEY_SETUP_TRUSTED_PEERS: ' , , ' } }).ok, false, 'blank entries trust nothing');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: { ...trusted, PINOKIO_SHARE_LOCAL: '1' } }).ok, false, 'sharing still disables the surface for a listed peer');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: trusted, hostHeader: 'abc.trycloudflare.com' }).ok, false, 'a listed peer still needs a local Host');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: trusted, origin: 'https://evil.example' }).ok, false, 'a listed peer still needs the exact Origin');
+  assert.equal(admitKeySetupRequest({ ...gateway, env: trusted, proxyHeaders: { 'x-forwarded-for': '203.0.113.5' } }).ok, false, 'a listed peer still refuses proxied requests');
   // Tunnel and DNS-rebinding traffic carries a foreign Host over a loopback socket.
   assert.equal(admitKeySetupRequest({ ...local, hostHeader: 'abc.trycloudflare.com' }).ok, false, 'foreign Host refused');
   assert.equal(admitKeySetupRequest({ ...local, hostHeader: 'workstation.local:4173' }).ok, false, 'non-localhost hostnames refused');

src/layers/airQuality/index.js

@@ -0,0 +1,286 @@
+import * as Cesium from 'cesium';
+import {
+  AIR_QUALITY_BANDS,
+  AIR_QUALITY_OVERLAY_SOURCE_ID,
+  AIR_QUALITY_OVERLAY_COHORT_LIMIT,
+  AIR_QUALITY_OVERLAY_COLLISION_CAPACITY,
+  AIR_QUALITY_PROVIDERS,
+  createAirQualityOverlayEntry,
+  mapAnalystRecord,
+  newestObservation,
+  readingsAreStale,
+  readingsInView,
+  selectAirQualityOverlayCohort,
+} from './model.js';
+export * from './model.js';
+export { createEcccAirQualitySource } from './source.js';
+
+/** Station markers are a point reading, not an extent. */
+const STATION_MARKER_RADIUS_M = 6_000;
+/** Readings listed in the readout card. */
+const READOUT_LIMIT = 5;
+
+/** Own one air-quality display, its refresh lifecycle, and its readout card. */
+export function createAirQualityLayer({ source, overlayHost } = {}) {
+  if (typeof source?.getSnapshot !== 'function')
+    throw new TypeError('Air quality requires a snapshot source');
+  if (!overlayHost) throw new TypeError('Air quality requires an overlay host');
+  let _viewer = null;
+  let _request = null;
+  let _dataSource = null;
+  let _readings = [];
+  let _count = 0;
+  let _lastUpdate = null;
+  let _lastError = null;
+  let _enabled = false;
+  let rowControlsListener = null;
+
+  const notify = () => rowControlsListener?.();
+
+  /** The camera's lon/lat rectangle in degrees, or null when unresolvable. */
+  const viewRectangle = () => {
+    const rectangle = _viewer?.camera?.computeViewRectangle?.();
+    if (!rectangle) return null;
+    const toDeg = Cesium.Math.toDegrees;
+    return {
+      west: toDeg(rectangle.west),
+      south: toDeg(rectangle.south),
+      east: toDeg(rectangle.east),
+      north: toDeg(rectangle.north),
+    };
+  };
+
+  const layer = {
+    id: 'air-quality',
+    name: 'Air quality',
+    icon: '◍',
+    source: 'ECCC MSC GeoMet',
+    updateInterval: 1_200_000,
+
+    init(viewer) {
+      if (_viewer) throw new Error('Air quality layer is already initialized');
+      _viewer = viewer;
+      _dataSource = new Cesium.CustomDataSource('air-quality');
+      _dataSource.show = false;
+      viewer.dataSources.add(_dataSource);
+      _readings = [];
+      _count = 0;
+      _lastUpdate = null;
+      _lastError = null;
+      _enabled = false;
+      overlayHost.setVisible(AIR_QUALITY_OVERLAY_SOURCE_ID, false);
+    },
+
+    enable() {
+      _enabled = true;
+      if (_dataSource) _dataSource.show = true;
+      overlayHost.setVisible(AIR_QUALITY_OVERLAY_SOURCE_ID, true);
+      notify();
+    },
+
+    disable() {
+      // Abort in flight: a response arriving after disable must not redraw.
+      _request?.abort();
+      _request = null;
+      _enabled = false;
+      if (_dataSource) _dataSource.show = false;
+      overlayHost.clearSource(AIR_QUALITY_OVERLAY_SOURCE_ID);
+      overlayHost.setVisible(AIR_QUALITY_OVERLAY_SOURCE_ID, false);
+      notify();
+    },
+
+    async update() {
+      if (!_enabled || !_dataSource) return false;
+      _request?.abort();
+      const request = new AbortController();
+      _request = request;
+      try {
+        const readings = await source.getSnapshot({ signal: request.signal });
+        // A superseded or aborted request must not touch the scene, and neither
+        // must one that lands after the layer was switched off.
+        if (request.signal.aborted || _request !== request || !_enabled)
+          return false;
+        _readings = readings;
+        this._render();
+        _count = _readings.length;
+        _lastUpdate = Date.now();
+        _lastError = null;
+        notify();
+        return true;
+      } catch (error) {
+        if (request.signal.aborted || _request !== request) return false;
+        _lastError = error?.message || 'Air quality request failed';
+        console.warn('[Data:AirQuality] Refresh failed:', _lastError);
+        notify();
+        return false;
+      } finally {
+        if (_request === request) _request = null;
+      }
+    },
+
+    /** Rebuild entities and overlay labels from the current readings. */
+    _render() {
+      if (!_dataSource) return;
+      _dataSource.entities.removeAll();
+      const overlayEntries = [];
+      for (const reading of _readings) {
+        const position = Cesium.Cartesian3.fromDegrees(
+          reading.lon,
+          reading.lat,
+        );
+        const color = Cesium.Color.fromCssColorString(reading.color);
+        _dataSource.entities.add(
+          new Cesium.Entity({
+            id: `air-quality:${reading.id}`,
+            position,
+            ellipse: {
+              // Static axes, as in the earthquake layer: a per-frame axis
+              // re-tessellates the clamped ground primitive every frame.
+              semiMajorAxis: STATION_MARKER_RADIUS_M,
+              semiMinorAxis: STATION_MARKER_RADIUS_M,
+              material: new Cesium.ColorMaterialProperty(color.withAlpha(0.35)),
+              outline: true,
+              outlineColor: color.withAlpha(0.9),
+              outlineWidth: 2,
+              heightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
+            },
+            properties: {
+              provider: reading.provider,
+              scale: reading.scale,
+              value: reading.value,
+              band: reading.band,
+              name: reading.name,
+              zone: reading.zone,
+              risk: reading.risk,
+              observedMs: reading.observedMs,
+              note: reading.note,
+              lat: reading.lat,
+              lon: reading.lon,
+            },
+          }),
+        );
+        overlayEntries.push(
+          createAirQualityOverlayEntry({
+            id: reading.id,
+            position,
+            title: `${reading.name} ${reading.label}`,
+            accent: reading.color,
+            value: reading.value,
+          }),
+        );
+      }
+      if (_enabled) {
+        overlayHost.setEntries(
+          AIR_QUALITY_OVERLAY_SOURCE_ID,
+          selectAirQualityOverlayCohort(overlayEntries),
+          {
+            cohortLimit: AIR_QUALITY_OVERLAY_COHORT_LIMIT,
+            collisionCapacity: AIR_QUALITY_OVERLAY_COLLISION_CAPACITY,
+            moving: false,
+          },
+        );
+      }
+    },
+
+    destroy(viewer = _viewer) {
+      _request?.abort();
+      _request = null;
+      _enabled = false;
+      overlayHost.clearSource(AIR_QUALITY_OVERLAY_SOURCE_ID);
+      overlayHost.setVisible(AIR_QUALITY_OVERLAY_SOURCE_ID, false);
+      if (_dataSource) {
+        viewer?.dataSources?.remove(_dataSource, true);
+        _dataSource = null;
+      }
+      _viewer = null;
+      _readings = [];
+      _count = 0;
+      _lastUpdate = null;
+      _lastError = null;
+      rowControlsListener = null;
+    },
+
+    /**
+     * Readout descriptor for the Weather panel: the band legend, and the worst
+     * readings currently in view.
+     *
+     * `readout: true` renders the toggle and source line only; the card owns
+     * the rest. Coverage is stated plainly because this layer is not global.
+     */
+    getRowControls() {
+      const provider = AIR_QUALITY_PROVIDERS.eccc;
+      const inView = readingsInView(_readings, viewRectangle(), READOUT_LIMIT);
+      const newest = _readings.reduce(
+        (max, reading) => Math.max(max, reading.observedMs || 0),
+        0,
+      );
+      return {
+        readout: true,
+        summary: {
+          label: provider.label,
+          coverage: provider.coverage,
+          validTime: newest ? new Date(newest).toISOString() : undefined,
+          detail: `${provider.network} · ${provider.scale}`,
+          status: _lastError
+            ? _lastError
+            : _count === 0
+              ? _lastUpdate === null
+                ? 'No readings available'
+                : 'No current readings'
+              : `${_count} stations reporting`,
+          units: provider.scale,
+        },
+        legend: AIR_QUALITY_BANDS.map((band) => ({
+          color: band.color,
+          label: band.label,
+        })),
+        legendCategorical: true,
+        list: {
+          ariaLabel: 'Highest air-quality readings in view',
+          items: inView.map((reading, index) => ({
+            id: reading.id,
+            ordinal: index + 1,
+            lead: `${reading.scale} ${reading.label}`,
+            text: `${reading.name} · ${reading.risk}`,
+            accent: reading.color,
+          })),
+        },
+      };
+    },
+
+    setRowControlsListener(listener) {
+      rowControlsListener = typeof listener === 'function' ? listener : null;
+    },
+
+    /**
+     * Snapshot readings as JSON-safe records for the analyst query engine.
+     * @param {number} [maxCount=500]
+     * @returns {Array<object>}
+     */
+    getAnalystRecords(maxCount = 500) {
+      if (!_enabled || !_readings.length) return [];
+      const limit = Number.isFinite(maxCount)
+        ? Math.max(1, Math.floor(maxCount))
+        : 500;
+      return _readings
+        .slice(0, limit)
+        .map((reading, index) => mapAnalystRecord(reading, index));
+    },
+
+    getStats() {
+      // `lastUpdate` is when a response was received; `observedAt` is when the
+      // network actually measured. Freshness is judged on the latter, so a feed
+      // that keeps answering with hours-old observations reports STALE rather
+      // than being narrated as live by the HUD and voice provenance envelope.
+      return {
+        count: _count,
+        lastUpdate: _lastUpdate,
+        error: _lastError,
+        observedAt: newestObservation(_readings),
+        // Only a completed refresh can be stale; before one there is no feed.
+        stale: _lastUpdate !== null && readingsAreStale(_readings),
+      };
+    },
+  };
+  return layer;
+}

src/layers/airQuality/model.js

@@ -0,0 +1,377 @@
+/**
+ * @module layers/airQuality/model
+ *
+ * Air-quality readings, normalized across networks. Pure — no Cesium, no
+ * network.
+ *
+ * Air-quality indices are not interchangeable numbers. Canada's AQHI runs 1 to
+ * 10+ on health risk; the US AQI runs 0 to 500 on concentration breakpoints;
+ * Europe's EAQI is a five-step category. A reading is therefore carried as
+ * `{ provider, scale, value, band }` — who measured it, which index it is, the
+ * value on that index's own terms, and the band it falls in — so a second
+ * network can be added without retrofitting a shared numeric meaning that does
+ * not exist.
+ *
+ * Only ECCC's AQHI is implemented here; `AIR_QUALITY_PROVIDERS` is the seam a
+ * later provider registers against.
+ */
+
+/** Band identifiers shared across providers, in ascending severity. */
+export const AIR_QUALITY_BANDS = Object.freeze([
+  Object.freeze({ id: 'low', label: 'Low', color: '#4cc9f0' }),
+  Object.freeze({ id: 'moderate', label: 'Moderate', color: '#ffd43b' }),
+  Object.freeze({ id: 'high', label: 'High', color: '#ff6b35' }),
+  Object.freeze({ id: 'very-high', label: 'Very High', color: '#c1121f' }),
+]);
+
+const BAND_BY_ID = new Map(AIR_QUALITY_BANDS.map((band) => [band.id, band]));
+
+/** Colour used when a station reports no usable reading. */
+export const AIR_QUALITY_UNKNOWN_COLOR = '#6b7785';
+
+export const AIR_QUALITY_OVERLAY_SOURCE_ID = 'air-quality';
+export const AIR_QUALITY_OVERLAY_COHORT_LIMIT = 48;
+export const AIR_QUALITY_OVERLAY_COLLISION_CAPACITY = 32;
+
+/**
+ * A reading this old is stale enough that displaying it would misinform.
+ * AQHI publishes hourly, so six hours is five missed publications.
+ */
+export const OBSERVATION_MAX_AGE_MS = 6 * 60 * 60 * 1000;
+
+/**
+ * How old the newest observation may be before the layer reports itself stale.
+ *
+ * This is deliberately separate from the age at which a reading is dropped.
+ * `lastUpdate` records when we last *received* a response, which stays current
+ * even when the network publishes nothing new; freshness has to be judged on
+ * the source's own observation time instead. AQHI publishes hourly, so a newest
+ * reading beyond two hours means at least one publication was missed and the
+ * feed should not be described as live.
+ */
+export const STALE_AFTER_MS = 2 * 60 * 60 * 1000;
+
+/**
+ * The newest observation time across a set of readings, or null when empty.
+ * @param {Array<object>} readings
+ * @returns {number|null} Epoch ms.
+ */
+export function newestObservation(readings) {
+  if (!Array.isArray(readings) || readings.length === 0) return null;
+  let newest = null;
+  for (const reading of readings) {
+    const at = Number(reading?.observedMs);
+    if (Number.isFinite(at) && (newest === null || at > newest)) newest = at;
+  }
+  return newest;
+}
+
+/**
+ * Is a set of readings stale, judged on source observation time? An empty
+ * set is stale: a refresh that kept no current observation has nothing live.
+ * @param {Array<object>} readings
+ * @param {number} [now=Date.now()]
+ * @returns {boolean}
+ */
+export function readingsAreStale(readings, now = Date.now()) {
+  const newest = newestObservation(readings);
+  // No current observation at all — every row was dropped as too old or
+  // unusable — is the stalest a feed can be, not a nominal one.
+  if (newest === null) return true;
+  return now - newest > STALE_AFTER_MS;
+}
+
+/**
+ * Registered provider descriptors. `coverage` is stated plainly because the
+ * layer is not global and the row must say so.
+ */
+export const AIR_QUALITY_PROVIDERS = Object.freeze({
+  eccc: Object.freeze({
+    id: 'eccc',
+    scale: 'AQHI',
+    label: 'Air quality',
+    network: 'Environment and Climate Change Canada',
+    coverage: 'Canada only · ECCC AQHI network',
+    /** ECCC's published band thresholds, evaluated in order. */
+    bands: Object.freeze([
+      Object.freeze({ id: 'low', max: 3 }),
+      Object.freeze({ id: 'moderate', max: 6 }),
+      Object.freeze({ id: 'high', max: 10 }),
+      Object.freeze({ id: 'very-high', max: Infinity }),
+    ]),
+  }),
+});
+
+/** Band descriptor for an id, or null. */
+export function airQualityBandById(bandId) {
+  return BAND_BY_ID.get(String(bandId ?? '')) || null;
+}
+
+/** Accent colour for a band id, falling back to neutral grey. */
+export function airQualityColor(bandId) {
+  return airQualityBandById(bandId)?.color || AIR_QUALITY_UNKNOWN_COLOR;
+}
+
+/**
+ * The published AQHI value for a raw ECCC reading: an integer from 1 up.
+ *
+ * ECCC reports whole numbers with a floor of 1 — there is no "AQHI 0" and no
+ * "AQHI 1.08". A raw value below 1 is a legitimate low reading, not an error,
+ * and is published as 1.
+ *
+ * @param {number|string|null|undefined} raw - Raw `aqhi` value from the API.
+ * @returns {number|null} Published integer AQHI, or null when unusable.
+ */
+export function aqhiDisplayValue(raw) {
+  // Guard the empty forms BEFORE coercing: Number(null) and Number('') are both
+  // 0, which would otherwise floor to a confident "AQHI 1" for a station that
+  // reported nothing at all.
+  if (raw === null || raw === undefined || raw === '') return null;
+  if (typeof raw !== 'number' && typeof raw !== 'string') return null;
+  if (typeof raw === 'string' && raw.trim() === '') return null;
+  const value = Number(raw);
+  if (!Number.isFinite(value) || value < 0) return null;
+  return Math.max(1, Math.round(value));
+}
+
+/**
+ * The band id for a value on a provider's scale.
+ * @param {string} providerId
+ * @param {number|null} value - Already in the provider's published form.
+ * @returns {string|null}
+ */
+export function bandForValue(providerId, value) {
+  const provider = AIR_QUALITY_PROVIDERS[String(providerId ?? '')];
+  if (!provider || !Number.isFinite(value)) return null;
+  return provider.bands.find((band) => value <= band.max)?.id ?? null;
+}
+
+/**
+ * Display text for a value on a provider's scale.
+ * AQHI collapses everything above ten into the open-ended "10+".
+ * @param {string} providerId
+ * @param {number|null} value
+ * @returns {string}
+ */
+export function valueLabel(providerId, value) {
+  if (!Number.isFinite(value)) return '--';
+  if (providerId === 'eccc') return value > 10 ? '10+' : String(value);
+  return String(value);
+}
+
+/** Plain-language risk phrase for a band id. */
+export function bandRiskText(bandId) {
+  const band = airQualityBandById(bandId);
+  return band ? `${band.label} health risk` : null;
+}
+
+/**
+ * Validate a station FeatureCollection into an id-keyed catalog.
+ *
+ * Atomic: a structurally broken response returns null so the caller keeps its
+ * last good catalog. A station missing coordinates is skipped, since one
+ * unusable station is not evidence the catalog is broken.
+ *
+ * @param {object} geojson - GeoJSON FeatureCollection from `aqhi-stations`.
+ * @returns {Map<string, object>|null} Stations by location_id, or null.
+ */
+export function normalizeAqhiStations(geojson) {
+  if (!Array.isArray(geojson?.features)) return null;
+  const stations = new Map();
+  for (const feature of geojson.features) {
+    const properties = feature?.properties;
+    if (
+      !properties ||
+      typeof properties !== 'object' ||
+      Array.isArray(properties)
+    )
+      return null;
+    const coordinates = feature?.geometry?.coordinates;
+    if (!Array.isArray(coordinates) || coordinates.length < 2) continue;
+    const [lon, lat] = coordinates.map(Number);
+    if (!Number.isFinite(lon) || !Number.isFinite(lat)) continue;
+    if (Math.abs(lat) > 90 || Math.abs(lon) > 180) return null;
+    const id = String(properties.location_id ?? feature.id ?? '').trim();
+    if (!id) continue;
+    stations.set(id, {
+      id,
+      name: String(properties.location_name_en || id).trim(),
+      // ECCC's administrative zone: atl, que, ont, pnr, pyr.
+      zone: String(properties['eccc_administrative-zone'] || '').trim(),
+      lat,
+      lon,
+    });
+  }
+  return stations;
+}
+
+/**
+ * Join latest ECCC observations onto known stations into provider-shaped rows.
+ *
+ * The catalog is the only thing that supplies a reading its coordinates, so an
+ * observation without a matching station cannot be placed and is dropped.
+ * Readings older than OBSERVATION_MAX_AGE_MS are dropped too — a six-hour-old
+ * air-quality number presented as current is worse than no number.
+ *
+ * @param {object} geojson - FeatureCollection from `aqhi-observations-realtime`.
+ * @param {Map<string, object>} stations - Known stations by location_id.
+ * @param {number} [now=Date.now()] - Clock seam for tests.
+ * @returns {Array<object>|null} Normalized readings, or null when malformed.
+ */
+export function normalizeAqhiObservations(geojson, stations, now = Date.now()) {
+  if (!Array.isArray(geojson?.features)) return null;
+  if (!(stations instanceof Map)) return null;
+  const provider = AIR_QUALITY_PROVIDERS.eccc;
+  const newest = new Map();
+  for (const feature of geojson.features) {
+    const properties = feature?.properties;
+    if (
+      !properties ||
+      typeof properties !== 'object' ||
+      Array.isArray(properties)
+    )
+      return null;
+    const stationId = String(properties.location_id ?? '').trim();
+    const station = stations.get(stationId);
+    if (!station) continue;
+
+    const value = aqhiDisplayValue(properties.aqhi);
+    if (value === null) continue;
+    const observedMs = Date.parse(properties.observation_datetime);
+    if (!Number.isFinite(observedMs)) continue;
+    if (now - observedMs > OBSERVATION_MAX_AGE_MS) continue;
+
+    const previous = newest.get(stationId);
+    if (previous && previous.observedMs >= observedMs) continue;
+    const band = bandForValue(provider.id, value);
+    newest.set(stationId, {
+      id: `${provider.id}:${stationId}`,
+      provider: provider.id,
+      scale: provider.scale,
+      value,
+      band,
+      stationId,
+      name: station.name,
+      zone: station.zone,
+      lat: station.lat,
+      lon: station.lon,
+      observedMs,
+      color: airQualityColor(band),
+      label: valueLabel(provider.id, value),
+      risk: bandRiskText(band),
+      note: String(properties.special_notes_en || '').trim() || null,
+    });
+  }
+  return [...newest.values()].sort(
+    (a, b) => b.value - a.value || a.stationId.localeCompare(b.stationId),
+  );
+}
+
+/**
+ * Build the source-owned presentation for one station label.
+ * @param {object} input
+ * @returns {object}
+ */
+export function createAirQualityOverlayEntry({
+  id,
+  position,
+  title,
+  accent,
+  value,
+}) {
+  return {
+    id: String(id),
+    position,
+    variant: 'label',
+    title,
+    accent,
+    // Worse air wins the label budget — the reading people need to see first.
+    priority: Math.round(Number(value) || 0) * 1000,
+    collisionGroup: 'ambient-label',
+    paintLane: 'ambient-label',
+    interactive: false,
+    edgeFade: 'keyhole',
+    horizonCull: true,
+    terrainOcclusion: false,
+    gapPx: 14,
+    verticalOnly: true,
+    placement: 'above',
+  };
+}
+
+/** Keep the worst readings, with stable identity as the tie-break. */
+export function selectAirQualityOverlayCohort(
+  entries,
+  limit = AIR_QUALITY_OVERLAY_COHORT_LIMIT,
+) {
+  const cap = Math.max(
+    0,
+    Math.min(AIR_QUALITY_OVERLAY_COHORT_LIMIT, Math.floor(Number(limit) || 0)),
+  );
+  if (!Array.isArray(entries) || cap === 0) return [];
+  return entries
+    .slice()
+    .sort(
+      (a, b) =>
+        b.priority - a.priority || String(a.id).localeCompare(String(b.id)),
+    )
+    .slice(0, cap);
+}
+
+/**
+ * The worst readings inside a lon/lat rectangle, for the readout card.
+ *
+ * A null rectangle means the camera could not resolve one (a fully oblique or
+ * space-level view); everything is then in scope rather than nothing, so the
+ * card degrades to the worst readings overall instead of going blank.
+ *
+ * @param {Array<object>} readings
+ * @param {?{west:number, south:number, east:number, north:number}} rect - Degrees.
+ * @param {number} [limit=5]
+ * @returns {Array<object>}
+ */
+export function readingsInView(readings, rect, limit = 5) {
+  if (!Array.isArray(readings)) return [];
+  const cap = Math.max(0, Math.floor(Number(limit) || 0));
+  if (cap === 0) return [];
+  const inside = !rect
+    ? readings
+    : readings.filter((reading) => {
+        if (reading.lat < rect.south || reading.lat > rect.north) return false;
+        // A rectangle crossing the antimeridian has west > east.
+        return rect.west <= rect.east
+          ? reading.lon >= rect.west && reading.lon <= rect.east
+          : reading.lon >= rect.west || reading.lon <= rect.east;
+      });
+  return inside
+    .slice()
+    .sort((a, b) => b.value - a.value || a.stationId.localeCompare(b.stationId))
+    .slice(0, cap);
+}
+
+/**
+ * Map one reading to a JSON-safe analyst record. Pure — no Cesium types.
+ * @param {object|null|undefined} raw
+ * @param {number} [index=0]
+ * @returns {object}
+ */
+export function mapAnalystRecord(raw, index = 0) {
+  const num = (v) => (Number.isFinite(v) ? v : null);
+  const text = (v) => {
+    const t = String(v ?? '').trim();
+    return t || null;
+  };
+  return {
+    id: text(raw?.id) || `AIR-${String(index).padStart(4, '0')}`,
+    provider: text(raw?.provider),
+    scale: text(raw?.scale),
+    value: num(raw?.value),
+    band: text(raw?.band),
+    name: text(raw?.name),
+    zone: text(raw?.zone),
+    risk: text(raw?.risk),
+    lat: num(raw?.lat),
+    lon: num(raw?.lon),
+    observedMs: num(raw?.observedMs),
+  };
+}

src/layers/airQuality/model.test.mjs

@@ -0,0 +1,269 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  AIR_QUALITY_BANDS,
+  AIR_QUALITY_PROVIDERS,
+  AIR_QUALITY_UNKNOWN_COLOR,
+  OBSERVATION_MAX_AGE_MS,
+  STALE_AFTER_MS,
+  airQualityColor,
+  aqhiDisplayValue,
+  bandForValue,
+  bandRiskText,
+  mapAnalystRecord,
+  normalizeAqhiObservations,
+  normalizeAqhiStations,
+  readingsAreStale,
+  readingsInView,
+  selectAirQualityOverlayCohort,
+  valueLabel,
+} from './model.js';
+
+const NOW = Date.parse('2026-09-24T18:30:00Z');
+const RECENT = '2026-09-24T18:00:00Z';
+const collection = (features) => ({ type: 'FeatureCollection', features });
+const station = (id, name, zone, lon, lat) => ({
+  type: 'Feature',
+  geometry: { type: 'Point', coordinates: [lon, lat] },
+  properties: {
+    location_id: id,
+    location_name_en: name,
+    'eccc_administrative-zone': zone,
+  },
+});
+const observation = (id, aqhi, when = RECENT) => ({
+  type: 'Feature',
+  properties: { location_id: id, aqhi, observation_datetime: when },
+});
+
+const STATIONS = collection([
+  station('IAKID', 'Calgary', 'pnr', -114.0575, 51.0458),
+  station('OAAAA', 'Toronto', 'ont', -79.3832, 43.6532),
+  station('AAAAA', 'Halifax', 'atl', -63.5752, 44.6488),
+]);
+
+// ── provider-shaped records ────────────────────────────────────────────────
+
+test('readings carry the provider-neutral {provider, scale, value, band} shape', () => {
+  // Indices are not interchangeable numbers: AQHI is 1-10+ on health risk,
+  // US AQI is 0-500 on concentration. The shape names which index a value is on
+  // so a second network can be added without inventing a shared meaning.
+  const stations = normalizeAqhiStations(STATIONS);
+  const [row] = normalizeAqhiObservations(
+    collection([observation('IAKID', 2.32)]),
+    stations,
+    NOW,
+  );
+  assert.equal(row.provider, 'eccc');
+  assert.equal(row.scale, 'AQHI');
+  assert.equal(row.value, 2);
+  assert.equal(row.band, 'low');
+});
+
+test('bands map from a value on a named provider scale', () => {
+  assert.equal(bandForValue('eccc', 1), 'low');
+  assert.equal(bandForValue('eccc', 3), 'low');
+  assert.equal(bandForValue('eccc', 4), 'moderate');
+  assert.equal(bandForValue('eccc', 7), 'high');
+  assert.equal(bandForValue('eccc', 11), 'very-high');
+  // An unregistered provider cannot be banded rather than being guessed at.
+  assert.equal(bandForValue('unknown-network', 5), null);
+  assert.equal(bandForValue('eccc', null), null);
+});
+
+test('the provider states its coverage plainly', () => {
+  assert.match(AIR_QUALITY_PROVIDERS.eccc.coverage, /Canada only/);
+  assert.equal(AIR_QUALITY_PROVIDERS.eccc.scale, 'AQHI');
+});
+
+test("values above ten collapse to the scale's open-ended label", () => {
+  assert.equal(valueLabel('eccc', 10), '10');
+  assert.equal(valueLabel('eccc', 11), '10+');
+  assert.equal(valueLabel('eccc', null), '--');
+});
+
+test('every band has a distinct colour, and an unknown band is neutral', () => {
+  const colors = AIR_QUALITY_BANDS.map((b) => b.color);
+  assert.equal(new Set(colors).size, colors.length);
+  assert.equal(airQualityColor('nonsense'), AIR_QUALITY_UNKNOWN_COLOR);
+  assert.equal(bandRiskText('high'), 'High health risk');
+  assert.equal(bandRiskText(null), null);
+});
+
+// ── published form ─────────────────────────────────────────────────────────
+
+test('AQHI rounds to the published integer form and floors at 1', () => {
+  assert.equal(aqhiDisplayValue(1.08), 1);
+  assert.equal(aqhiDisplayValue(3.5), 4);
+  assert.equal(aqhiDisplayValue(0), 1);
+  assert.equal(aqhiDisplayValue('3'), 3);
+});
+
+test('an absent reading never becomes a confident AQHI 1', () => {
+  // Number(null) and Number('') are both 0, which would floor to 1.
+  for (const empty of [null, undefined, '', '   ', NaN, true, {}, [], -1]) {
+    assert.equal(aqhiDisplayValue(empty), null, `${JSON.stringify(empty)}`);
+  }
+});
+
+// ── snapshot validation ────────────────────────────────────────────────────
+
+test('stations normalize into an id-keyed catalog carrying their zone', () => {
+  const stations = normalizeAqhiStations(STATIONS);
+  assert.equal(stations.size, 3);
+  assert.equal(stations.get('OAAAA').zone, 'ont');
+});
+
+test('malformed payloads are rejected atomically', () => {
+  assert.equal(normalizeAqhiStations(null), null);
+  assert.equal(normalizeAqhiStations(collection([{ properties: null }])), null);
+  const stations = normalizeAqhiStations(STATIONS);
+  assert.equal(normalizeAqhiObservations(null, stations, NOW), null);
+  assert.equal(
+    normalizeAqhiObservations(collection([]), 'not a map', NOW),
+    null,
+  );
+});
+
+test('an observation with no matching station is dropped', () => {
+  const stations = normalizeAqhiStations(STATIONS);
+  const rows = normalizeAqhiObservations(
+    collection([observation('IAKID', 2), observation('ZZZZZ', 9)]),
+    stations,
+    NOW,
+  );
+  assert.equal(rows.length, 1);
+});
+
+test('a stale reading is dropped rather than shown as current', () => {
+  const stations = normalizeAqhiStations(STATIONS);
+  const old = new Date(NOW - OBSERVATION_MAX_AGE_MS - 60_000).toISOString();
+  const rows = normalizeAqhiObservations(
+    collection([observation('IAKID', 3, old), observation('OAAAA', 4)]),
+    stations,
+    NOW,
+  );
+  assert.deepEqual(
+    rows.map((r) => r.stationId),
+    ['OAAAA'],
+  );
+});
+
+test('a snapshot whose every observation was too old is stale, not nominal', () => {
+  const stations = normalizeAqhiStations(STATIONS);
+  const old = new Date(NOW - OBSERVATION_MAX_AGE_MS - 60_000).toISOString();
+  const rows = normalizeAqhiObservations(
+    collection([observation('IAKID', 3, old), observation('OAAAA', 4, old)]),
+    stations,
+    NOW,
+  );
+  assert.deepEqual(rows, []);
+  assert.equal(readingsAreStale(rows, NOW), true);
+  assert.equal(readingsAreStale([{ observedMs: NOW - 60_000 }], NOW), false);
+  assert.equal(
+    readingsAreStale([{ observedMs: NOW - STALE_AFTER_MS - 1 }], NOW),
+    true,
+  );
+});
+
+test('the newest reading per station wins and worst air sorts first', () => {
+  const stations = normalizeAqhiStations(STATIONS);
+  const rows = normalizeAqhiObservations(
+    collection([
+      observation('IAKID', 3, '2026-09-24T16:00:00Z'),
+      observation('IAKID', 7, '2026-09-24T18:00:00Z'),
+      observation('OAAAA', 5),
+    ]),
+    stations,
+    NOW,
+  );
+  assert.deepEqual(
+    rows.map((r) => r.value),
+    [7, 5],
+  );
+});
+
+// ── readout selection ──────────────────────────────────────────────────────
+
+const reading = (id, value, lat, lon) => ({
+  id,
+  stationId: id,
+  value,
+  lat,
+  lon,
+  name: id,
+});
+
+test('the readout lists the worst readings inside the view rectangle', () => {
+  const rows = [
+    reading('west', 9, 51.0, -114.0),
+    reading('east', 4, 43.6, -79.3),
+    reading('mild', 2, 51.1, -114.1),
+  ];
+  const inView = readingsInView(
+    rows,
+    { west: -115, south: 50, east: -113, north: 52 },
+    5,
+  );
+  assert.deepEqual(
+    inView.map((r) => r.id),
+    ['west', 'mild'],
+  );
+});
+
+test('an unresolvable view rectangle degrades to the worst overall, not to blank', () => {
+  // A space-level or fully oblique camera cannot produce a rectangle; the card
+  // should still say something useful.
+  const rows = [reading('a', 3, 0, 0), reading('b', 8, 10, 10)];
+  assert.deepEqual(
+    readingsInView(rows, null, 5).map((r) => r.id),
+    ['b', 'a'],
+  );
+  assert.deepEqual(readingsInView(rows, null, 0), []);
+  assert.deepEqual(readingsInView(null, null, 5), []);
+});
+
+test('a view rectangle crossing the antimeridian still selects correctly', () => {
+  // west > east is how a dateline-crossing rectangle is expressed.
+  const rows = [reading('near', 5, 0, 179), reading('far', 9, 0, 100)];
+  const inView = readingsInView(
+    rows,
+    { west: 170, south: -10, east: -170, north: 10 },
+    5,
+  );
+  assert.deepEqual(
+    inView.map((r) => r.id),
+    ['near'],
+  );
+});
+
+test('the overlay cohort is capped and deterministic', () => {
+  const entries = Array.from({ length: 120 }, (_, i) => ({
+    id: `s${i}`,
+    priority: i % 11,
+  }));
+  const cohort = selectAirQualityOverlayCohort(entries);
+  assert.ok(cohort.length <= 48);
+  assert.deepEqual(
+    cohort.map((e) => e.id),
+    selectAirQualityOverlayCohort(entries).map((e) => e.id),
+  );
+});
+
+test('analyst records are JSON-safe and name the provider and scale', () => {
+  const stations = normalizeAqhiStations(STATIONS);
+  const [row] = normalizeAqhiObservations(
+    collection([observation('IAKID', 2)]),
+    stations,
+    NOW,
+  );
+  const record = mapAnalystRecord(row, 0);
+  assert.deepEqual(JSON.parse(JSON.stringify(record)), record);
+  assert.equal(record.provider, 'eccc');
+  assert.equal(record.scale, 'AQHI');
+  const empty = mapAnalystRecord(undefined, 7);
+  assert.equal(empty.id, 'AIR-0007');
+  for (const [key, value] of Object.entries(empty)) {
+    assert.notEqual(value, undefined, `${key} must not be undefined`);
+  }
+});

src/layers/airQuality/ownership.test.mjs

@@ -0,0 +1,275 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { createAirQualityLayer } from './index.js';
+import { layerFeedState } from '../../data/feedState.js';
+import { STALE_AFTER_MS } from './model.js';
+
+function harness(source) {
+  const sources = [];
+  const events = [];
+  const viewer = {
+    dataSources: {
+      add(value) {
+        sources.push(value);
+      },
+      remove(value) {
+        sources.splice(sources.indexOf(value), 1);
+      },
+    },
+  };
+  const layer = createAirQualityLayer({
+    source,
+    overlayHost: {
+      setEntries(...args) {
+        events.push(args);
+      },
+      setVisible() {},
+      clearSource() {},
+    },
+  });
+  layer.init(viewer);
+  layer.enable(viewer);
+  return { layer, viewer, sources, events };
+}
+
+const reading = (id, value, overrides = {}) => ({
+  id: `eccc:${id}`,
+  provider: 'eccc',
+  scale: 'AQHI',
+  value,
+  band: 'low',
+  stationId: id,
+  name: id,
+  zone: 'ont',
+  lat: 43.65,
+  lon: -79.38,
+  observedMs: 1_700_000_000_000,
+  color: '#4cc9f0',
+  label: String(value),
+  risk: 'Low health risk',
+  note: null,
+  ...overrides,
+});
+
+const staticSource = (rows) => ({ getSnapshot: async () => rows });
+
+test('a layer requires both a snapshot source and an overlay host', () => {
+  assert.throws(() => createAirQualityLayer(), /snapshot source/);
+  assert.throws(
+    () => createAirQualityLayer({ source: staticSource([]) }),
+    /overlay host/,
+  );
+});
+
+test('initialization is single-use and owns exactly one data source', () => {
+  const { layer, viewer, sources } = harness(staticSource([]));
+  assert.equal(sources.length, 1);
+  assert.throws(() => layer.init(viewer), /already initialized/);
+  layer.destroy(viewer);
+  assert.equal(sources.length, 0);
+});
+
+test('a refresh renders readings and publishes an overlay cohort', async () => {
+  const { layer, events } = harness(
+    staticSource([reading('A', 2), reading('B', 7)]),
+  );
+  assert.equal(await layer.update(), true);
+  assert.equal(layer.getStats().count, 2);
+  assert.equal(layer.getStats().error, null);
+  assert.equal(events.at(-1)[0], 'air-quality');
+});
+
+// ── the abort + enabled guard ──────────────────────────────────────────────
+
+test('a response landing after disable cannot redraw the scene', async () => {
+  // The failure this prevents: disable() clears the overlay, then an in-flight
+  // response resolves and repopulates it behind the user's back.
+  let release;
+  const gate = new Promise((resolve) => {
+    release = resolve;
+  });
+  const { layer, events } = harness({
+    getSnapshot: async ({ signal } = {}) => {
+      await gate;
+      signal?.throwIfAborted();
+      return [reading('A', 5)];
+    },
+  });
+  const pending = layer.update();
+  layer.disable();
+  const publishedBefore = events.length;
+  release();
+  assert.equal(await pending, false, 'a late response must not be applied');
+  assert.equal(
+    events.length,
+    publishedBefore,
+    'no overlay write after disable',
+  );
+  assert.equal(layer.getStats().count, 0);
+});
+
+test('disable aborts the request in flight', async () => {
+  let seenSignal = null;
+  const { layer } = harness({
+    getSnapshot: async ({ signal } = {}) => {
+      seenSignal = signal;
+      await new Promise((resolve) => setTimeout(resolve, 40));
+      signal?.throwIfAborted();
+      return [];
+    },
+  });
+  const pending = layer.update();
+  layer.disable();
+  await pending;
+  assert.ok(seenSignal, 'a signal was passed through to the source');
+  assert.equal(seenSignal.aborted, true);
+});
+
+test('a superseded refresh does not clobber the newer one', async () => {
+  let call = 0;
+  const { layer } = harness({
+    getSnapshot: async ({ signal } = {}) => {
+      call += 1;
+      const mine = call;
+      await new Promise((resolve) => setTimeout(resolve, mine === 1 ? 40 : 1));
+      signal?.throwIfAborted();
+      return [reading(`call-${mine}`, mine)];
+    },
+  });
+  const first = layer.update();
+  const second = layer.update();
+  const [firstResult, secondResult] = await Promise.all([first, second]);
+  assert.equal(firstResult, false, 'the superseded call reports no update');
+  assert.equal(secondResult, true);
+  assert.equal(layer.getAnalystRecords()[0].name, 'call-2');
+});
+
+test('update is a no-op while the layer is disabled', async () => {
+  const { layer } = harness(staticSource([reading('A', 2)]));
+  layer.disable();
+  assert.equal(await layer.update(), false);
+  assert.equal(layer.getStats().count, 0);
+});
+
+// ── readout descriptor ─────────────────────────────────────────────────────
+
+test('the readout descriptor carries the band legend and coverage', async () => {
+  const { layer } = harness(staticSource([reading('A', 2), reading('B', 9)]));
+  await layer.update();
+  const controls = layer.getRowControls();
+  assert.equal(controls.readout, true);
+  assert.match(controls.summary.coverage, /Canada only/);
+  // The Weather panel's legend shape: one {color, label} per band.
+  assert.equal(controls.legendCategorical, true);
+  assert.deepEqual(
+    controls.legend.map((entry) => entry.label),
+    ['Low', 'Moderate', 'High', 'Very High'],
+  );
+  assert.ok(
+    controls.legend.every((entry) => /^#[0-9a-f]{6}$/i.test(entry.color)),
+  );
+  // Worst first, and every item keyed.
+  assert.deepEqual(
+    controls.list.items.map((i) => i.text),
+    ['B · Low health risk', 'A · Low health risk'],
+  );
+  assert.ok(controls.list.items.every((i) => i.id));
+  assert.match(controls.summary.status, /2 stations reporting/);
+});
+
+test('the readout reports an error rather than a silent empty card', async () => {
+  const { layer } = harness({
+    getSnapshot: async () => {
+      throw new Error('ECCC HTTP 503');
+    },
+  });
+  await layer.update();
+  assert.match(layer.getRowControls().summary.status, /503/);
+});
+
+test('row-control listeners are notified on refresh and teardown-safe', async () => {
+  const { layer, viewer } = harness(staticSource([reading('A', 2)]));
+  let calls = 0;
+  layer.setRowControlsListener(() => {
+    calls += 1;
+  });
+  await layer.update();
+  assert.ok(calls >= 1, 'a refresh notifies the card');
+  layer.destroy(viewer);
+  const after = calls;
+  layer.setRowControlsListener(() => {
+    calls += 1;
+  });
+  assert.equal(calls, after);
+});
+
+// ── feed-state honesty ─────────────────────────────────────────────────────
+
+test('freshness is judged on observation time, not on when we last fetched', async () => {
+  // lastUpdate stays current every time the network answers, even when it
+  // answers with nothing new. Judging freshness on it would let the HUD and
+  // voice describe hours-old air quality as live.
+  const aged = Date.now() - STALE_AFTER_MS - 60_000;
+  const { layer } = harness(
+    staticSource([reading('A', 2, { observedMs: aged })]),
+  );
+  await layer.update();
+  const stats = layer.getStats();
+  assert.ok(
+    stats.lastUpdate >= Date.now() - 5_000,
+    'we did just receive a response',
+  );
+  assert.equal(stats.observedAt, aged, 'but the observation itself is old');
+  assert.equal(stats.stale, true);
+  assert.equal(
+    layerFeedState(stats),
+    'stale',
+    'provenance must not read this as nominal',
+  );
+});
+
+test('a current reading reports nominal', async () => {
+  const { layer } = harness(
+    staticSource([reading('A', 2, { observedMs: Date.now() - 10 * 60_000 })]),
+  );
+  await layer.update();
+  const stats = layer.getStats();
+  assert.equal(stats.stale, false);
+  assert.equal(layerFeedState(stats), 'nominal');
+});
+
+test('a refresh that kept no current observation reports stale, not nominal', async () => {
+  // Every observation older than OBSERVATION_MAX_AGE_MS is dropped, so a feed
+  // that only has hours-old rows yields an empty snapshot. That is the
+  // stalest a feed can be; it must not read as a healthy empty layer.
+  const { layer } = harness(staticSource([]));
+  assert.equal(layer.getStats().stale, false, 'no refresh yet, no verdict');
+  await layer.update();
+  const stats = layer.getStats();
+  assert.equal(stats.count, 0);
+  assert.equal(stats.observedAt, null);
+  assert.equal(stats.stale, true);
+  assert.equal(layerFeedState(stats), 'stale');
+  assert.equal(layer.getRowControls().summary.status, 'No current readings');
+});
+
+test('a failed refresh over good readings reports degraded, not nominal', async () => {
+  let fail = false;
+  const { layer } = harness({
+    getSnapshot: async () => {
+      if (fail) throw new Error('ECCC HTTP 503');
+      return [reading('A', 2, { observedMs: Date.now() - 10 * 60_000 })];
+    },
+  });
+  await layer.update();
+  assert.equal(layerFeedState(layer.getStats()), 'nominal');
+  fail = true;
+  await layer.update();
+  const stats = layer.getStats();
+  assert.ok(stats.count > 0, 'the previous readings are still displayed');
+  assert.equal(
+    layerFeedState(stats),
+    'degraded',
+    'showing old data after a failure is degraded',
+  );
+});

src/layers/airQuality/source.js

@@ -0,0 +1,104 @@
+import { readResponseJsonCapped } from '../../sources/httpBody.js';
+import { normalizeAqhiStations, normalizeAqhiObservations } from './model.js';
+
+const COLLECTIONS_ROOT = 'https://api.weather.gc.ca/collections';
+const STATIONS_URL = `${COLLECTIONS_ROOT}/aqhi-stations/items`;
+const OBSERVATIONS_URL = `${COLLECTIONS_ROOT}/aqhi-observations-realtime/items`;
+
+/** Comfortably above Canada's ~134 stations without inviting a huge page. */
+const STATION_LIMIT = 500;
+const OBSERVATION_LIMIT = 500;
+/** Station geometry is near-static — a few changes a year. Refetch twice a day. */
+const STATION_TTL_MS = 12 * 60 * 60 * 1000;
+/** A full 500-row GeoJSON page is a few hundred KB; anything past this is not a page. */
+const MAX_RESPONSE_BYTES = 4 * 1024 * 1024;
+
+/**
+ * Request and validate a complete ECCC AQHI snapshot before it can replace
+ * displayed readings. The first registered air-quality provider.
+ *
+ * Two collections are involved. `aqhi-stations` is the catalog — it supplies
+ * every reading its coordinates and is cached for twelve hours because it
+ * barely changes. `aqhi-observations-realtime` is the hourly reading feed,
+ * requested with `latest=true` so the response is current values rather than
+ * the full observation history, which is roughly 2,000 rows nationally.
+ *
+ * The station catalog is only replaced when a refresh actually returns
+ * stations, so a transient empty response cannot blank the layer.
+ *
+ * @param {object} [options]
+ * @param {Function} [options.fetchImpl] - Injected fetch, for tests.
+ * @param {() => number} [options.now] - Clock seam, for tests.
+ * @param {number} [options.timeoutMs=15000] - Deadline for each request.
+ * @returns {{getSnapshot: Function}}
+ */
+export function createEcccAirQualitySource({
+  fetchImpl = (...args) => globalThis.fetch(...args),
+  now = () => Date.now(),
+  timeoutMs = 15_000,
+} = {}) {
+  /** @type {Map<string, object>} */
+  let stations = new Map();
+  let stationsFetchedAt = 0;
+
+  /** One bounded GeoJSON page: deadline, caller abort, byte cap, row cap. */
+  const getJson = async (url, limit, signal) => {
+    const controller = new AbortController();
+    const abort = () => controller.abort(signal.reason);
+    signal?.addEventListener('abort', abort, { once: true });
+    const timer = setTimeout(
+      () => controller.abort(new Error('ECCC request timed out')),
+      timeoutMs,
+    );
+    try {
+      signal?.throwIfAborted();
+      const response = await fetchImpl(url, {
+        headers: { Accept: 'application/json' },
+        signal: controller.signal,
+      });
+      if (!response.ok) throw new Error(`ECCC HTTP ${response.status}`);
+      const payload = await readResponseJsonCapped(
+        response,
+        MAX_RESPONSE_BYTES,
+        controller.signal,
+      );
+      // The server's `limit` is a request, not a guarantee.
+      if (Array.isArray(payload?.features) && payload.features.length > limit)
+        return { ...payload, features: payload.features.slice(0, limit) };
+      return payload;
+    } finally {
+      clearTimeout(timer);
+      signal?.removeEventListener('abort', abort);
+    }
+  };
+
+  return {
+    async getSnapshot({ signal } = {}) {
+      const clock = now();
+      if (stations.size === 0 || clock - stationsFetchedAt > STATION_TTL_MS) {
+        const payload = await getJson(
+          `${STATIONS_URL}?f=json&limit=${STATION_LIMIT}`,
+          STATION_LIMIT,
+          signal,
+        );
+        const next = normalizeAqhiStations(payload);
+        if (!next) throw new Error('Malformed AQHI station response');
+        // An empty refresh must not wipe a good catalog.
+        if (next.size > 0) {
+          stations = next;
+          stationsFetchedAt = clock;
+        }
+      }
+      if (stations.size === 0) throw new Error('No AQHI stations available');
+
+      const payload = await getJson(
+        `${OBSERVATIONS_URL}?f=json&latest=true&limit=${OBSERVATION_LIMIT}`,
+        OBSERVATION_LIMIT,
+        signal,
+      );
+      const readings = normalizeAqhiObservations(payload, stations, clock);
+      if (!readings) throw new Error('Malformed AQHI observation response');
+      return readings;
+    },
+  };
+}

src/layers/airQuality/source.test.mjs

@@ -0,0 +1,197 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { createEcccAirQualitySource } from './source.js';
+
+const NOW = Date.parse('2026-09-24T18:30:00Z');
+const HOUR = 60 * 60 * 1000;
+const station = (id) => ({
+  type: 'Feature',
+  geometry: { type: 'Point', coordinates: [-79.38, 43.65] },
+  properties: { location_id: id, location_name_en: id },
+});
+const observation = (id, at = NOW, aqhi = 3) => ({
+  type: 'Feature',
+  properties: {
+    location_id: id,
+    aqhi,
+    observation_datetime: new Date(at - 10 * 60_000).toISOString(),
+  },
+});
+const json = (body, init) =>
+  new Response(JSON.stringify(body), {
+    headers: { 'content-type': 'application/json' },
+    ...init,
+  });
+
+/** A fetch that serves the station catalog and observations from mutable state. */
+function feed() {
+  const state = {
+    clock: NOW,
+    stations: [station('A')],
+    stationIds: null,
+    urls: [],
+  };
+  state.source = createEcccAirQualitySource({
+    now: () => state.clock,
+    fetchImpl: async (url) => {
+      state.urls.push(url);
+      return json({
+        type: 'FeatureCollection',
+        // Every known station reports ten minutes before the current clock.
+        features: url.includes('aqhi-stations')
+          ? state.stations
+          : (state.stationIds || ['A']).map((id) =>
+              observation(id, state.clock),
+            ),
+      });
+    },
+  });
+  state.stationRequests = () =>
+    state.urls.filter((url) => url.includes('aqhi-stations')).length;
+  return state;
+}
+
+test('the station catalog is cached for twelve hours, then refetched', async () => {
+  const state = feed();
+  await state.source.getSnapshot();
+  state.clock = NOW + 12 * HOUR;
+  await state.source.getSnapshot();
+  assert.equal(state.stationRequests(), 1, 'within the TTL the cache serves');
+  state.clock = NOW + 12 * HOUR + 1;
+  await state.source.getSnapshot();
+  assert.equal(
+    state.stationRequests(),
+    2,
+    'past the TTL the catalog refreshes',
+  );
+});
+
+test('an empty catalog refresh keeps the previous catalog', async () => {
+  const state = feed();
+  await state.source.getSnapshot();
+  state.stations = [];
+  state.clock = NOW + 13 * HOUR;
+  const readings = await state.source.getSnapshot();
+  assert.deepEqual(
+    readings.map((reading) => reading.stationId),
+    ['A'],
+  );
+  // The empty refresh did not count as fresh, so the next call retries it.
+  await state.source.getSnapshot();
+  assert.equal(state.stationRequests(), 3);
+});
+
+test('an empty first catalog is an error, not an empty layer', async () => {
+  const state = feed();
+  state.stations = [];
+  await assert.rejects(state.source.getSnapshot(), /No AQHI stations/);
+});
+
+test('requests ask for JSON, the latest observations only, and a bounded page', async () => {
+  const state = feed();
+  await state.source.getSnapshot();
+  const [stations, observations] = state.urls.map((url) => new URL(url));
+  assert.equal(stations.pathname, '/collections/aqhi-stations/items');
+  assert.equal(stations.searchParams.get('f'), 'json');
+  assert.equal(stations.searchParams.get('limit'), '500');
+  assert.equal(
+    observations.pathname,
+    '/collections/aqhi-observations-realtime/items',
+  );
+  // Without latest=true the collection returns the full history (~2,000 rows).
+  assert.equal(observations.searchParams.get('latest'), 'true');
+  assert.equal(observations.searchParams.get('limit'), '500');
+});
+
+test('rows past the requested limit are ignored', async () => {
+  const state = feed();
+  state.stations = Array.from({ length: 600 }, (_, index) =>
+    station(`S${String(index).padStart(3, '0')}`),
+  );
+  state.stationIds = state.stations.map((row) => row.properties.location_id);
+  const readings = await state.source.getSnapshot();
+  assert.equal(readings.length, 500);
+});
+
+test('a malformed catalog and HTTP errors reject', async () => {
+  await assert.rejects(
+    createEcccAirQualitySource({
+      fetchImpl: async () => json({ features: 'no' }),
+    }).getSnapshot(),
+    /Malformed AQHI station/,
+  );
+  await assert.rejects(
+    createEcccAirQualitySource({
+      fetchImpl: async () => json({}, { status: 503 }),
+    }).getSnapshot(),
+    /ECCC HTTP 503/,
+  );
+});
+
+test('an oversized response is refused before it is parsed', async () => {
+  const big = 'x'.repeat(4 * 1024 * 1024 + 1);
+  await assert.rejects(
+    createEcccAirQualitySource({
+      fetchImpl: async () =>
+        new Response(new Blob([big]).stream(), {
+          headers: { 'content-type': 'application/json' },
+        }),
+    }).getSnapshot(),
+    (error) => error.code === 'RESPONSE_TOO_LARGE',
+  );
+  await assert.rejects(
+    createEcccAirQualitySource({
+      fetchImpl: async () =>
+        json({}, { headers: { 'content-length': String(5 * 1024 * 1024) } }),
+    }).getSnapshot(),
+    (error) => error.code === 'RESPONSE_TOO_LARGE',
+  );
+});
+
+test('a caller abort cancels the request and detaches its listener', async () => {
+  const caller = new AbortController();
+  let requestSignal = null;
+  const source = createEcccAirQualitySource({
+    fetchImpl: (_url, { signal }) => {
+      requestSignal = signal;
+      return new Promise((_resolve, reject) =>
+        signal.addEventListener('abort', () => reject(signal.reason), {
+          once: true,
+        }),
+      );
+    },
+  });
+  const pending = source.getSnapshot({ signal: caller.signal });
+  caller.abort(new Error('layer disabled'));
+  await assert.rejects(pending, /layer disabled/);
+  assert.equal(requestSignal.aborted, true);
+  const already = new AbortController();
+  already.abort(new Error('before start'));
+  let calls = 0;
+  await assert.rejects(
+    createEcccAirQualitySource({
+      fetchImpl: async () => {
+        calls += 1;
+        return json({ features: [] });
+      },
+    }).getSnapshot({ signal: already.signal }),
+    /before start/,
+  );
+  assert.equal(calls, 0);
+});
+
+test('a request that outlives its deadline is aborted', async (t) => {
+  t.mock.timers.enable({ apis: ['setTimeout'] });
+  const source = createEcccAirQualitySource({
+    timeoutMs: 1_000,
+    fetchImpl: (_url, { signal }) =>
+      new Promise((_resolve, reject) =>
+        signal.addEventListener('abort', () => reject(signal.reason), {
+          once: true,
+        }),
+      ),
+  });
+  const pending = source.getSnapshot();
+  t.mock.timers.tick(1_000);
+  await assert.rejects(pending, /ECCC request timed out/);
+});