Merge current main into map-feature refactoring

CHANGELOG.md

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 # Changelog
 
 - Separate map-feature acquisition from annotation/search selection. Move road and mapped-installation decoding into source adapters while preserving geometry policy, cancellation, retry outcomes and compatibility exports.
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+- Cancel hidden Nepal provider preloads on Stop, event disable and replacement, and respect drawing-tool pointer ownership for fallback evidence cards. Preserve @manjunath22466’s Nepal scene contribution and source attribution.
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+- Cancel the Nepal Upper Valley locator's pending approach and orbit on scene Stop, replacement, seek, and teardown; late camera callbacks cannot take over a newer shot.
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+- Keep completed flood history visible when later Nepal media-only shots arrive and reveal their source cards.
+- Reconcile an already-playing Nepal video when the YouTube API attaches, so missed playback notifications cannot truncate the seven-second clip or replay an already-ended clip.
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+- Clamp the Nepal flood trail and surge marker to the active terrain or photoreal surface so refined 3D tiles cannot bury the path.
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+- Preserve Nepal shot camera and map ownership through the public layer lifecycle; passive restoration does not start standalone playback.
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 - Separate transit snapshot/history acquisition from the layer and expose its bounded request service independently of Vite. Preserve feed selection, playback, cache policy and compatibility exports.
 
 - Widen opaque sensor halos to 3 display pixels with a 30 px fleet core while retaining at least 60% opaque core coverage, adding contrast margin through thermal blur and bloom on bright roofs.
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 - Reject isolated transit history outliers without changing the active playback bracket; rejected live reports retain the last accepted route, mode and detection text.
 
+- Isolate optional scene-card presentation callbacks from the shared overlay projection path, preserving ordinary-layer allocation budgets and recovering from failed animation callbacks.
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+- Rename scene shots inline with a double-click; Enter or focus loss saves, and Escape cancels.
+- Stop scene playback and delayed media when its event layer is explicitly closed; reject stale seek and replay completions. Ship only the Nepal incident default, without a separate reconstruction recipe.
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+- Keep Nepal flood and locator components available through Scenes without separate entries in Data Layers.
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+- Start the shared Nepal flood route at the Debris-Dammed Lake river reach, removing the earlier upstream section from overview paths.
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+- Remove the redundant WITNESS panel shortcut; retain per-shot source media and Open Original links.
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+- Follow the Mailung Bazzar, Dandaguan video's source clock through 0:07 and advance after its brief fade-out, including older saved scenes. Bound delayed or blocked playback and cancel late provider callbacks on Stop or replacement.
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+- Keep the completed flood trail visible during the Debris-Dammed Lake to Second landslide camera handoff, without revealing the next reach early.
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+- Preserve loaded base imagery when successive scene shots use the same provider, avoiding a bare-globe flash at shot handoffs.
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+- Add the Nepal Flood Incident scene with geographic labels, synchronized event controls, linked witness sources, and Vantor comparison imagery over Esri. Nepal uses Google 3D when available and falls back to Esri with keyless terrain without rewriting saved shots. Bundled event imagery and derived data retain their separate non-commercial terms.
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 - Add an optional Nominatim geocoding adapter with configurable search/reverse endpoints, cancellation, bounded responses and retryable upstream errors. Extract portable response-reading and Overpass lexical helpers while retaining existing server exports.
 
 - Expose reference feed factories independently of standalone catalog construction; preserve source choices and asset attribution.