save_watchlist_scan_run had a single caller — the manual scan endpoint. the automatic/
scheduled path (process_watchlist_scan_automatically) ran the full scan but never wrote a
history row, so nightly scans never showed up in the History modal — only manual ones.
- new shared helper persist_scan_run(database, state, ...) extracts the run from the
finished watchlist_scan_state and writes one history row
- the automatic path now stamps scan_run_id/scan_track_events and calls it
- the manual path is refactored onto the same helper so the two can't drift apart again
- history is global (no profile filter), so the all-profiles nightly scan records one
aggregate row (profile_id None → 1, never NULL)
tests: 4 new persist_scan_run seam tests (real DB) + 2 new auto-scan integration tests
proving the auto path actually records (completed + cancelled, exactly once). 420
watchlist/automation tests green.
Boulder: the live display was a cramped ~600px box showing a fraction of the
data the scan already tracks, with no animation and no history.
Live scan deck (replaces the three-column box, full width):
- Header: pulsing live dot, "x / y artists" progress text, and two live
counter chips (found / added) that pop when they change.
- Animated progress bar (artist index / total) with a shimmer sweep.
- Stage: artist avatar with accent glow + name + readable phase line
("Checking album 2 of 5"), album art + album + current track.
- "Added to wishlist this run" feed: taller, bigger art, slide-in animation
that plays once per new track (feed re-renders only when it changes).
- All data was already in scan_state (current_artist_index, total_artists,
tracks_found/added_this_scan, current_phase) — just never displayed. The
legacy fullscreen-modal markup shares element ids and lacks the new ones,
so it keeps working untouched.
Scan History (persistent):
- New watchlist_scan_runs table — one row per run (status, timestamps,
artists/found/added counts) + the full track ledger JSON. Saved at scan
completion AND cancellation; idempotent on run_id; pruned to the last 100
runs. Wishlist rows erode as tracks download, so this is the durable record.
- GET /api/watchlist/scan/history (runs) + /history/<run_id>/tracks (ledger).
- New History button on the Watchlist page → modal in the origins/blocklist
house style: run cards (date, cancelled chip, artists/found/added stats)
expanding into the Added / Skipped track lists with art and badges.
Tests: save+fetch with ledger, idempotent re-save, prune keeps newest,
unknown-run empty, cancelled runs recorded. 398 watchlist/wishlist/history
tests pass; JS syntax-checked; all rendered strings escaped.
