Merge branch 'main' into contrib/gods-011-street-level-unique-tiles-20261011-reviewed

# Conflicts:
#	CHANGELOG.md

docs/CURRENT-STATE.md

@@ -73,6 +73,8 @@ Windows/Claude Desktop Cowork confirmation remains outstanding (#927).
 
 ## Tools and local MCP server — October 1, 2026
 
+Tool argument string lengths follow JSON Schema Unicode code-point counts, so supplementary characters count once rather than as two UTF-16 units.
+
 `gods-eye-view/tools` defines queries that answer questions from the app's data,
 and `gods-eye-view/tools/mcp` exposes a composed catalog over the Model Context
 Protocol. `npm run mcp` serves Core's tools over stdio to a local MCP client,
@@ -399,6 +401,9 @@ camera moves with easing, duration and holds. Playback and seek share one
 coordinate sampler; navigation/manual input revokes authored motion and pending
 holds. Anchor heights and explicit endpoints require the WGS84 ellipsoid
 reference. Legacy projects retain their ordinary flights, content and edits.
+Seeking between ordinary camera poses uses the shortest longitude arc across the
+dateline while preserving both authored endpoint longitudes, and turns heading
+and roll the short way for any authored angles.
 See [camera directions](DIRECTOR-CAMERA.md).
 
 Realtime voice composes separate connection, response/tool, Radio handoff, input
@@ -1013,6 +1018,8 @@ and sharpen. Display supplies actions and renders settings; effect execution has
 no DOM dependency. Existing presets and the 500 ms transition remain unchanged.
 Stopping the controller revokes animation before asynchronous UI teardown; final
 destruction removes its stages and restores the borrowed bloom configuration.
+Snow's sideways sway stays within a fixed range at any session age; Wind scales
+its amplitude.
 
 ## Display control ownership
 
@@ -1047,6 +1054,9 @@ Automatic collapse remains presentation only, prioritizes the latest explicit
 panel, and honors keyboard focus on the right. Mobile layout still releases
 desktop allocation styles. Stable Display allocation avoids unnecessary style
 writes. This extraction does not change panel positions or layout defaults.
+The right rail skips panels hidden by other CSS (computed `display: none`), but
+keeps the collapsed panels its own exclusive presentation hides, so automatic
+collapse can still be undone.
 
 ## Surface keyboard lifecycle
 
@@ -4324,6 +4334,8 @@ and unreachable upstream (502/504) separately from road geometry.
 
 ### Place-search providers
 
+Coordinate input requires exactly two nonempty components; extra comma or semicolon separators decline to geocoding rather than silently choosing a location.
+
 Location search/fly-to, annotations and Radio location lookup receive one
 `placeSearch.geocode(query, { bias, signal })` service. `src/standalone` composes
 two offline providers first — a strict decimal-degree coordinate reader and an
@@ -4448,7 +4460,7 @@ are omitted rather than framing the wrong part of the globe.
 - **Esri surface and the swipe.** While any image is on the map (a preview included) the layer holds the map lease (`acquireImageryComparison`, owner `recent-imagery`, `esri-if-photoreal`): on Google 3D the map switches to Esri, because 30 m pixels over 3D buildings do not read, and Cesium's split only works on the globe. The lease is handed back, and Google 3D restored unless the operator changed maps meanwhile, when the last image leaves the map or the layer is disabled; the notice line says so while it holds. While a day is shown the imagery keeps Esri: a manual switch that lands on Google 3D is answered at once with a new lease under the same policy (`keepEsri`), the notice reads `Imagery stays on Esri · CLEAR to use Google 3D`, and the divider never suspends because of a map switch. It re-leases once per switch generation and only for a manual one (`MapSourceController#getSwitchOrigin()` is `manual` for an outside `setStack`, `automatic` for the controller's own fallback or recovery), never for the lease's own switch and never while releasing, so CLEAR and disable still return to Google 3D; a lease another owner holds stays refused. When Esri fails and the controller falls back to Google 3D on its own, the layer lets the lease go without restoring anything, both days drape on the tileset without a swipe and the guidance reads `Esri map unavailable · no swipe`; only the next manual switch to Google 3D takes Esri again, so a failing Esri map is never retried in a loop. Switching between globe stacks (Esri, OSM, Bing) only rebinds. On a tileset host both images drape without a swipe. The split control (`createImagerySplit`, labels A / B, or IMAGE / BASEMAP) exists only while a swipe is live, recentres on every new comparison (not while scrubbing the second day), except once for a split restored from a link. There is no keyboard shortcut (Space is the app's push-to-talk): SWAP (`#ri-swap`, in the controls row, its slot reserved and the button disabled while no swipe is live) trades the two sides, A to the right and B to the left, or the image to the right of the basemap, and a second click restores; the hint reads `Drag the divider · SWAP trades sides`. The swap is not in the share link, and every new comparison starts unswapped. One opacity applies to both drapes. Another owner holding the lease is reported and the images still drape.
 - **Panel.** `#recent-imagery-panel` is static rail markup in `src/ui/templates/context.html` beside `#weather-panel`, registered in `PanelLayoutController`, `PanelChrome` and the share panel state (`ui` token `i`), hidden while the layer is off and opened on first appearance unless a stored or shared collapse choice exists (`dataset.collapsedPreference`). `LayerPanel.attachRecentImagery(factory)` mounts the readout (`createRecentImageryPanel` in `src/ui/recentImagery.js`) into its `data-rail-scroller` body, as the weather readout is mounted. The body is a fixed stack in which no block changes height and no control moves in any state: `#ri-actions` (SELECT BOX · USE VIEW · CLEAR, rail-card actions), `#ri-notice` (one line: `#ri-notice-text` with the refusal, error, CLEAR notice or the Esri note, and `#ri-zoom-in` in a fixed slot at its right end, reserved unless an oversized box or view can be fitted), `#ri-strip` (day cards newest first: thumbnail, date, sensor, cloud, START HERE, PREVIEW, and a SHOW chip or A and B chips; ← → Home End move, S / A / B pin, Enter previews), `#ri-hint` (one line: the next step), `#ri-selection` (`#ri-mode` IMAGE · VS BASEMAP · A / B, then `#ri-slot-a` and `#ri-slot-b` with `#ri-unpin-a` / `#ri-unpin-b` kept in place when empty), `#ri-controls` (`#ri-opacity`, EXPORT / EXPORT A and EXPORT B) and `#ri-details`, a collapsed rail card holding the focused day's acquisition, coverage and granules, catalog notes, the empty-days toggle and the imagery credit. Absent controls are reserved (invisible), never removed. Every render preserves the body's `scrollTop`.
 - **Share links.** Layer options (token `1`): box edges as integers at degrees × 100000, pins `a` and `b` as compact days (`S20260918`), `m` mode (0 image, 1 basemap, 2 A / B), `p` split percent (share-link only: never stored locally) and `v` for the daily overview. Row chips: `MORE DETAIL · 30 m` (on) and `DAILY OVERVIEW · 250 m` (off).
-- Regression surface: the colocated `*.test.mjs` beside each module (shared doubles in `src/layers/recentImagery/testDoubles.mjs`; `src/ui/recentImagery.test.mjs` includes a DOM-structure guard: every control keeps its place in the tree, nothing is hidden, and every fixed-height block keeps the class the stylesheet fixes its height by; it has no layout, so it cannot see movement), `src/ui/layerPanel.test.mjs` (mount), `src/maps/controller.test.mjs` (`subscribe`), `src/data/layerState.test.mjs` (codec), `src/sharelink.celestial.test.mjs` (panel token), and the live gate `scripts/qa-recent-imagery.mjs`, which also measures every control's rect across the transitions within 1 px; that measurement is the real layout-shift check.
+- Regression surface: the colocated `*.test.mjs` beside each module (shared doubles in `src/layers/recentImagery/testDoubles.mjs`; `src/ui/recentImagery.test.mjs` includes a DOM-structure guard: every control keeps its place in the tree, nothing is hidden, and every fixed-height block keeps the class the stylesheet fixes its height by; it has no layout, so it cannot see movement), `src/ui/layerPanel.test.mjs` (mount), `src/maps/controller.test.mjs` (`subscribe`), `src/data/layerState.test.mjs` (codec), `src/sharelink.celestial.test.mjs` (panel token), and the live gate `scripts/qa-recent-imagery.mjs`, which also measures every control's rect, relative to the panel, across the transitions within 1 px; that measurement is the real layout-shift check. `QA_RECENT_IMAGERY_SLOW_RENDER=1` gives loaded software renderers a 4 s zoom deadline and an 8-sample stability tail; the default stays 2 s and 12 samples.
 
 ### 3D Aircraft + Tracking (June 2026)
 
@@ -4629,6 +4641,7 @@ are omitted rather than framing the wrong part of the globe.
 - **Cockpit Context scope:** the 250 km radius applies to the air/sea proximity cohorts. Installation counts come only from the currently loaded viewport and are labeled `CURRENT VIEWPORT ONLY` in the cockpit as well as the normal Context panel; neither surface presents them as a complete 250 km installation survey.
 - **Cockpit camera anchor:** first-person mode does not write feed-boundary corrections directly into the camera. A cockpit-only inertial anchor advances from the selected aircraft's displayed course and speed, then converges toward the authoritative delayed track with correction capped below forward motion. The displayed kinematics are derived from the same consecutive fix segment as the rendered position, with raw feed speed/course used only as fallback; a transient zero/missing feed speed therefore cannot freeze a visibly moving aircraft after layer enable or a map/cockpit handoff. Rendered altitude continues to come from that interpolated track position. Late ADS-B fixes and short render stalls can remove drift without accelerating or reversing the view. Camera placement runs before scene update/culling at a bounded 20 Hz so a moving cockpit does not force Photoreal 3D Tiles to retraverse on every display frame; textual instruments update at 10 Hz and context/layout work at 4 Hz. Every far Cockpit contact pip shares one stable Cesium texture-atlas entry and skips unused screen-projected course calculations, while only in-range 2D aircraft silhouettes pay the screen-projected rotation cost; ambient glTF collections are hidden/retained rather than synchronously destroyed at cockpit entry, and context rails lay out only on explicit content/state changes and viewport resize. The deliberate 15/30-second layer interpolation delays and per-Cesium-frame position caches remain unchanged.
 - **Cockpit route, vision, and view controls:** visible on-screen `COCKPIT`, `RESET`, and `EXIT COCKPIT` controls replace reliance on the `C` shortcut. RESET uses the same canonical globe route as the map and voice actions, exits Cockpit, and releases its camera ownership rather than exposing the hidden map-style top action. When the tracked commercial flight has a plausible ADSBDB route, the top of the right briefing rail shows a compact `FROM → TO` airport strip and the visor shows a centered estimated-destination chevron with its relative bearing; absent or implausible route data hides the strip and cue rather than guessing. The cockpit-local vision control is an interactive `PREV / CURRENT / NEXT` carousel over `NORMAL`, `CRT`, `NVG`, `FLIR`, `ANIME`, `NOIR`, and `SNOW`; its previous/next actions wrap, and activating the current value advances to the next style. Cockpit enters on the active map preset, so a Cyber FLIR map opens Cockpit on FLIR while Normal remains a distinct option instead of producing a second FLIR entry. Cockpit choices temporarily activate the existing Cesium post-process stages, while exiting Cockpit through either EXIT or RESET restores the pre-entry map style. The regional-news page uses a free Google News RSS locality query first, with the existing GDELT query retained only as a fail-soft fallback; linked headlines remain reporting, not verified incidents or risk intelligence.
+- **Cockpit missing observations:** missing local weather observations remain unknown rather than being converted to zero or clear skies, in the briefing and in the cloud effects; a missing temperature drops the whole local weather record, including its wind and condition.
 - **Cockpit weather status:** the earlier multi-canvas atmospheric compositor remains fail-closed and is not attached to the live viewer. Cockpit clouds are a separate transparent WebGL pass with a capped 520×320 framebuffer, 24 ray steps, three FBM octaves, and a 12 FPS ceiling. It defaults off and starts only when local storage explicitly contains the persisted `WX ON` opt-in (`'1'`). When opted in, observations refresh after five minutes or 25 km of aircraft movement, fail transparent when unavailable or clear, and stop on exit or disable. `WX OFF` governs atmospheric rendering only: the briefing still fetches source-backed Natural Earth region, headline, and Open-Meteo local-information data, aborting and replacing any in-flight request when the selected aircraft changes. No weather effect runs in map mode and no synthetic fallback is shown.
 - **Cockpit trail visibility:** entering cockpit hides the selected aircraft's trail body and head so they cannot cross the first-person view; exit restores them. This cockpit-only presentation change does not alter the normal map-mode invariant that aircraft trails render through terrain using their depth-fail material.
 - **Aircraft course slew:** civilian and military 3D models retain the 60°/s course limiter, but each rendered frame can consume at most 250 ms of accumulated slew time. A long tile/render stall therefore catches up over multiple visible frames instead of turning one delayed frame into a heading snap.
@@ -5224,7 +5237,9 @@ its paint loop. Camera deactivation destroys the decoder, and fatal playback
 errors revert to the labeled frame fallback. Camera changes clear the old panel
 frame. hls.js is imported only when an HLS camera starts. Two live sessions may
 coexist with at most eight independent consumer leases each; no-access lease
-expiry is 15 seconds. Closing one consumer leaves other consumers running. Encrypted/fMP4/byte-range playlists fail
+expiry is 15 seconds. Closing one consumer leaves other consumers running. Lease
+ids use `crypto.randomUUID` where the page is a secure context and an equivalent
+v4 id from `crypto.getRandomValues` on plain-HTTP LAN pages. Encrypted/fMP4/byte-range playlists fail
 closed. Performance and live agency reliability require recorded validation.
 
 ## Wind forecast models