* feat(system): run thumbnail generation as an Activity job
GET /prompt_manager/images/thumbnails/plan counts what a run would do
(targets, fresh, remaining past the cap, source labels) and writes
nothing. POST /prompt_manager/jobs/thumbnails {mode, size, quality}
starts the "thumbnails" job: admission guarded, cancellable at a file
boundary, outcome groups generated / skipped / errors. size is the
longest edge (128-2048), quality the encoder, and rebuild writes fresh
previews again through the same atomic rename, so a failed file keeps
its old preview and originals are only read.
The legacy gallery stream now starts or attaches to the same job and
streams its unchanged frames. A client that goes away no longer stops
the work; the gallery's Cancel asks the server to cancel the job.
* feat(activity): per-kind job descriptors
One descriptor table (activity-kinds.mjs) decides each job kind's pill
verb, toasts, line, tiles, outcomes, openable rows and labels; the
store re-exports it. The scan and image tagging views are unchanged.
A thumbnail job counts Generated, Skipped and Errors, reads
"Generating thumbnails" in the pill and "Thumbnails finished · N
generated · M errors" when it ends.
Any other kind (the health check, a held legacy-page operation) gets
the generic descriptor with no tiles and no Results, instead of the
scan's zero tiles. A running job without a known total shows an
indeterminate progress bar and no percentage, and only a job the
server can cancel shows Cancel.
* feat(system): review and start thumbnail jobs
Sources' Thumbnail generation -> Review options and Overview's Review
thumbnails open the concept's Thumbnail maintenance dialog: scope, quality
(preselected from Image loading quality) and preview size limit, a plan
line from the read-only thumbnail plan (D99) and Start, which starts the
thumbnails Activity job and opens it. A size outside 128-2048 requests
nothing; a refused start shows the busy link toast.
* fix(system): thumbnail job review fixes (#249 S5)
- 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.
* fix(gallery): cancel the stream's own thumbnail job by id
The settings panel and the startup dialog cancel the job named by the
stream's job frame, and only one their stream started. A Cancel before
the frame waits for it, a double Cancel posts once, and a job another
tab or System started keeps running. The startup dialog now settles on
Cancel instead of staying on "Cancelling...".
* fix(activity): indeterminate pill bar and the nothing-to-do line
The pill's mini bar sweeps while a job's total is unknown instead of
showing an empty fill. A finished thumbnail job with nothing to do shows
the server's final line. Coverage floors raised for gallery.js and
activity.mjs.
Vito
6505d339aa