FILE NUOVO
                        │
                        ▼
                     WATCHER
                        │
                        ▼
              photo_ingest_jobs
                        │
                        ▼
                 PHOTO DAEMON [I]
                        │
                        ▼
                  runOneJob()
                        │
                        ▼
                scanPhotoSingle()
                        │
              ┌─────────┼─────────┐
              │         │         │
              ▼         ▼         ▼
           photos    thumbnails  geocode_jobs
              │                   │
              │                   ▼
              │             GEOCODE DAEMON [G]
              │
              │
              └─ SQLite trigger
                     │
                     ▼
              face_scan_jobs
                     │
                     ▼
               FACE DAEMON [F]


                 SCAN
                  │
                  ▼
             scanner foto
                  │
                  ▼
             scanFile.js
                  │
           ┌──────┴───────┐
           │              │
           ▼              ▼
     processFile()     foto esistente?
           │
           ▼
       thumbnails
           │
           ▼
        photos DB
           │
           ├──────────────► trigger SQLite
           │                    │
           │                    ▼
           │              face_scan_jobs
           │                    │
           │                    ▼
           │               FACE DAEMON
           │
           ▼
     photo_changes
     added / updated



PHOTO DAEMON
    │
    │ foto salvata + thumbnail pronte
    │ job = done
    ▼
enqueueServerEvent()
    │
    ▼
server_event_outbox
    │
    │ consumer ogni ~250 ms
    ▼
SERVER [S]
    │
    ▼
broadcastPhotoEvent(user, {
    type: "added",
    id: photoId
})
    │
    ▼
WebSocket :4002
    │
    ▼
Browser
    │
    ▼
sync.js
    │
    ▼
enqueueAdded(id)
    │
    ▼
GALLERIA AGGIORNATA