The lyrics sibling of the Cover Art Filler, plus retag integration — reusing
the existing LyricsClient (LRClib) the import pipeline already uses.
- lyrics_client: extracted the LRClib fetch (exact-match-with-duration →
search fallback) into a shared _fetch_remote_lyrics, used by both
create_lrc_file (unchanged behavior) and a new check-only has_remote_lyrics.
- MissingLyricsJob (core/repair_jobs/missing_lyrics.py): scans tracks with no
.lrc sidecar and — Option A — only flags ones LRClib actually has lyrics
for, so instrumentals/interludes are never surfaced or re-flagged. Registered
in the job list; default OFF; respects the lrclib_enabled toggle.
- _fix_missing_lyrics (repair_worker): applies a finding by fetching + writing
the .lrc and embedding lyrics via create_lrc_file.
- Re-tag tool: new 'lyrics' setting ('fetch'|'skip', default skip). When
'fetch', apply_track_plans now also fetches/refreshes the .lrc per track
(fetch-if-missing, re-embed-if-exists) — threaded through scan gates, finding
details, the auto-apply path, and the manual fix handler. Settings UI
auto-renders the dropdown from setting_options; no markup needed.
- Frontend: type/action/result labels for missing_lyrics + a finding detail
render case.
Tests: 12 — has_remote_lyrics truth table, sidecar detection, scan (only-
fixable / skip-existing / lrclib-disabled), the apply handler, and retag
lyrics_action on/off. 694 repair/lyrics/cover/retag tests pass.
