Merge main and preserve voice panel and GhostMaps schema coverage

docs/CURRENT-STATE.md

@@ -3823,6 +3823,7 @@ its criteria cannot be silently ignored.
 | Street Level 📷 | Mapillary street-level imagery (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, server memory cache 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) |
+| S2 GhostMaps 👻 (`s2-ghostmaps`) | S2 Underground's public GhostMaps repository on GitHub (KMZ intel products, keyless, CC BY-NC-SA 4.0) | `src/layers/ghostMaps/` via `src/app/layers/ghostMaps.js` | `/api/ghostmaps/catalog`, `/api/ghostmaps/events` (server-sent events), `/api/ghostmaps/file/{product}` | branch head checked every 15 s; new commits pushed to the page; 5 min catalog backstop |
 | 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
@@ -5346,6 +5347,28 @@ request viewbox and continues searching without that geographic preference.
 - 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`.
 
+### S2 GhostMaps (October 2026)
+
+- **What it shows.** Events ▸ **S2 GhostMaps** draws the current edition of S2 Underground's KMZ intel products from `github.com/s2underground/GhostMaps`. The products are the Common Intelligence Picture and the 30-day kinetic pull (both on by default), the Border Crisis Map, the Iran Common Intelligence Picture, Iran Kinetic Events, Yemen FLOT, and **Latest Drop**: the newest dated incident file outside those series, `0_Archive`, `Basedata` and `Reference Material`. Each product has a chip in the row. The chip choice is kept in `localStorage` (`gev.ghostmaps.products`) and falls back to the defaults when storage is blocked.
+- **Editions.** `src/layers/ghostMaps/catalog.js` (pure) matches whole repository paths per product. The newest edition wins by the date written in the file name, then by `Export_N`/`vN`. Undated names, such as the fixed 30-day file, are identified by blob sha. Files over 50 MiB are left out (the 62 MB census KMZ, for example). A renamed folder drops the product rather than matching elsewhere.
+- **Updates.** The repository is not ours, so there is no webhook. `server/providers/ghostMaps.js` starts with the first `/api/ghostmaps` request, so an install that never enables the layer never contacts GitHub.
+  - It reads the branch head from git's smart-HTTP ref advertisement (`/info/refs?service=git-upload-pack`, about 0.5 KB, outside the REST rate limit) every `GHOSTMAPS_POLL_SECONDS` (15 s by default, 5 s minimum). Failures back off from 15 s to 5 min.
+  - Only a new head costs REST calls: one recursive tree and one commit. An optional `GITHUB_TOKEN` raises the REST limit.
+  - After an upstream outage, a successful branch-head check clears the error and pushes a recovered catalog even when the commit is unchanged. Cached products stay in place; subsequent healthy unchanged checks stay silent.
+  - The new catalog goes to `.gev-cache/ghostmaps/catalog.json` and to every open page over server-sent events (`/api/ghostmaps/events`, 25 s heartbeat, at most 64 subscribers). Default products are downloaded at once.
+  - The layer reloads only products whose blob changed. The new edition's data source is added before the old one is removed. A product that leaves the catalog leaves the globe.
+  - The row reads `LIVE` while the stream is open. A five-minute catalog read is the backstop.
+- **Files.** `/api/ghostmaps/file/{product}` serves only catalog products. Files are downloaded by commit-pinned raw URLs, so a CDN cannot return an older edition. They are cached on disk by blob sha, and blobs no current product uses are pruned. A request whose `?v=` names the current blob is `immutable`. Repository paths never reach the page.
+- **Source ownership.** The application catalog receives `sources['s2-ghostmaps']` through the shared source contracts; an omitted or null source stays unavailable without opening a stream or fetching. The standalone source factory supplies the same-origin implementation and accepts replacements. Packed-image URLs are released on cancelled or failed product construction, and remain owned by a successfully loaded product until it is removed.
+- **Voice and locales.** S2 can be toggled through its registered id and aliases. The model already sees the S2 GhostMaps brand in the id, and compact alias-hint separators keep the complete voice prompt within its existing 52,000-character limit; accepted aliases are unchanged. The row and reports are translated in Spanish, Russian and Simplified Chinese.
+- **Rendering.** The page parses the KMZ with the import module's zip, KMZ and XML helpers into one `CustomDataSource` per product.
+  - Points become ground-clamped billboards with the depth test off, so they never sink into terrain or 3D tiles. Because the Google 3D map hides the globe, nothing else would stop far-side pins drawing through the planet. Pins are therefore horizon-culled with Street Level's `createHorizonCull` before their first frame and again whenever the camera moves.
+  - Lines and polygon outlines are ground-clamped polylines.
+  - Styles, StyleMaps and inline styles are honoured. Icons come only from images packed in the same KMZ and at most 512 KB. Anything else uses a per-product round marker.
+  - Network links, overlays, models and remote hrefs are never followed. Hidden placemarks are skipped. Bounds are 20,000 placemarks and 250,000 positions per product.
+- **Reports.** Clicking a marker opens a card with the product, folder, edition date and the placemark's report fields. `src/layers/ghostMaps/records.js` reads ArcGIS popup tables as text only: `<Null>` and internal fields are dropped and values are capped. Description markup is never inserted into the page. The first `http(s)` research link opens from the card. The card is `stateless`, so it comes and goes with the click, as CCTV cards do. It is also `horizonCull`ed, so it hides when its marker turns behind the planet. Picks are registered under `s2-ghostmaps`.
+- **Validation.** Unit tests: `src/layers/ghostMaps/*.test.mjs` cover editions, the catalog, ref parsing, description tables and wrapping; `server/providers/ghostMaps.test.mjs` covers commit detection, events, pinned downloads, cache pruning, restart and routing. `node scripts/qa-ghostmaps.mjs --url http://localhost:4173` covers the live load, the open stream, picks and cards (asserted on the overlay host's diagnostics, since the `desynchronized` overlay canvas can read back a stale buffer headless), far-side culling, a synthetic push, chip persistence, disable and phone width.
+
 ### 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.