b30010eb6f
Cover the two new pieces of the async pipeline:
backgroundProcessor.claimNextPhoto
- returns null when no pending rows
- returns the row + flips status under postgres FOR UPDATE SKIP LOCKED
- returns null when SQLite UPDATE-with-guard loses the race
- returns the row when the SQLite guard wins
photoProcessor.processPhoto
- happy path: writes thumbnail / dimensions / EXIF capture date and
marks 'complete'; fires watermark queue + photo.uploaded webhook
with the right payload
- video path: writes ffmpeg duration / codec / dimensions; does NOT
queue watermark (image-only)
- throws cleanly when the photo row no longer exists
Mocks db / imageProcessor / videoProcessor / storage / sharp /
watermarkGeneratorService / webhookService / logger so the tests run
without a real DB or any image library calls — fast and deterministic.