Merge branch 'main' into feat/voice-geometry

Picks up #1308 (Overpass admission), #114 (Sea Marks and Ski Pistes),
#1206 (radio country coverage) and #1435. Resolutions:
- SECURITY.md: main's rewritten cross-site paragraph, with voice place
  search listed beside /api/overpass among the keyless map routes.
- scripts/format-scope.json: both sides. A merge on main dropped 97 entries
  (being restored there); keeping them, this PR's 12 and main's 2 new ones
  keeps every file in format:check. All 1,222 paths exist.
- Translation catalogs: main's two new keys and this PR's 47, no overlap.
- Layer count 36 (33 + OSM Places + Sea Marks + Ski Pistes); both schema
  pins re-derived, the first-run length is exactly 30,919 + 292 + 107.

src/ui/layerNames.js

@@ -44,6 +44,8 @@ export const LAYER_NAME_KEYS = Object.freeze({
   'air-quality': msg('Air quality'),
   directions: msg('Directions'),
   'alpr-cameras': msg('ALPR Cameras'),
+  'sea-marks': msg('Sea Marks'),
+  'ski-pistes': msg('Ski Pistes'),
 });
 
 /** The layer panel's own English names, where they differ from the module's. */