fix(maps): prevent server crash when legacy Google photo URLs are stored as placeIds

Migration 107 only rewrote image_url rows matching /places/%/photos/%; URLs using
the /place-photos/ or /places/<opaque> paths survived the upgrade and were passed
verbatim to the Places API, producing a malformed request whose empty/HTML response
body threw SyntaxError before detailsRes.ok was checked. The resulting rejection was
leaked by placePhotoCache.setInFlight via an unhandled .finally() chain, triggering
Node 22's default unhandledRejection=throw and terminating the process.

- placePhotoCache: add .catch() after .finally() to prevent unhandled rejection crash
- mapsService: reject URL-shaped placeIds early; read response as text before JSON.parse
- migrations: add migration to rewrite remaining googleusercontent/places.googleapis URLs
- MapView/MapViewGL: prefer stable proxy URL form of image_url before google_place_id

Fixes #770

client/src/components/Map/MapView.tsx

@@ -477,7 +477,11 @@ export const MapView = memo(function MapView({
       cleanups.push(onThumbReady(cacheKey, thumb => setThumb(cacheKey, thumb)))
 
       if (!cached && !isLoading(cacheKey)) {
-        const photoId = place.image_url || place.google_place_id || place.osm_id
+        const photoId =
+          (place.image_url?.startsWith('/api/maps/place-photo/') ? place.image_url : null)
+          || place.google_place_id
+          || place.osm_id
+          || place.image_url
         if (photoId || (place.lat && place.lng)) {
           fetchPhoto(cacheKey, photoId || `coords:${place.lat}:${place.lng}`, place.lat, place.lng, place.name)
         }

client/src/components/Map/MapViewGL.tsx

@@ -366,7 +366,11 @@ export function MapViewGL({
       }
       cleanups.push(onThumbReady(cacheKey, thumb => setThumb(cacheKey, thumb)))
       if (!cached && !isLoading(cacheKey)) {
-        const photoId = place.image_url || place.google_place_id || place.osm_id
+        const photoId =
+          (place.image_url?.startsWith('/api/maps/place-photo/') ? place.image_url : null)
+          || place.google_place_id
+          || place.osm_id
+          || place.image_url
         if (photoId || (place.lat && place.lng)) {
           fetchPhoto(cacheKey, photoId || `coords:${place.lat}:${place.lng}`, place.lat, place.lng, place.name)
         }