validateShareTokenForPhoto was querying journey_photos by jp.id but the
public page sends p.photo_id (trek_photos.id) in the URL. In a fresh
database the IDs coincidentally match, masking the bug. In production
instances with many Immich-synced photos the trek_photos autoincrement
is far ahead of journey_photos, causing a 404 for every Immich photo
on the public share page.
Fix: change the lookup to jp.photo_id = ? so validation is keyed on
trek_photos.id, which is what the client sends and what streamPhoto
needs. Updated the test helper to return trekId and added a regression
test that pre-populates trek_photos to produce diverging IDs. Closes#675.
trek_photos is now the central registry; trip_photos and journey_photos
reference it via photo_id FK. Updated all affected test helpers and
direct-SQL assertions to join trek_photos instead of querying stale
columns (asset_id, provider, owner_id) on the leaf tables.
Also fix ATLAS-UNIT-019: getVisitedRegions now fires background geocoding
and returns immediately, so the test must call it twice — once to trigger
the fill, once after advancing fake timers to read cached results.