- The legacy stream's first frame is job {id, started}, sent after the
subscription so no runner frame is missed; it reads the registry after
prepare, so a job started in that gap is attached to, not refused.
- Every exit sets a truthful final status line; nothing to do never
reads "Processing file 0 of 0".
- Cancel is checked per file during the planning walk; a job cancelled
there publishes no start frame.
- The ffmpeg fallback keeps the chosen quality (-q:v) and the aspect
ratio; the placeholder uses the chosen JPEG settings.
- A locked preview on Windows reads "Preview in use by another program;
the old one was kept", not the raw WinError.
- Thumbnail work no longer defers the monitor's Needs review recording:
it writes previews only, never records.
- The disconnect test now proves the job outlives its stream (one worker,
9 files, three batches); the attach test waits on an event.
Vito Sansevero
6f78b4f46f