The previous commit's `browse_artist_recordings` call passed
`inc=releases+artist-credits` — but MusicBrainz's recording browse
endpoint rejects `inc=releases` with HTTP 400. The adapter's error
handler returned an empty list, so the Tracks section stayed empty
even though the fix was supposed to populate it.
Browse without release info is useless for our search UI (tracks
would render with no album), so swap to the fielded Lucene search
`arid:<mbid>` on the `/recording` endpoint. That's the canonical MB
pattern for "find recordings by this artist WITH release context":
- arid: search accepts the artist MBID and returns recordings with
`releases` (release-group, date, media) embedded in each result.
- One API call per lookup, same as browse would have been.
Renamed the method to `search_recordings_by_artist_mbid` so the name
matches its behaviour — it's a search, not a browse. Adapter updated
to call the new name; tests updated to match.
Verified against the live API: Metallica's MBID returns 5 recordings
in ~1.8 seconds (vs the previous 400 error).
26 new unit tests in tests/test_musicbrainz_search.py covering:
- Cover Art URL construction (release + release-group scope, empty MBID,
unknown scope fallback)
- Structured query splitting (hyphen, en-dash, em-dash, bare name, no
false-positive splits on hyphens-inside-words)
- Artist search: score filtering, strict=False call contract, exception
handling, genre extraction from MB tags, mbid/name validation
- Top-artist resolver: memoization by normalized query, sub-threshold
returns None, negative-result caching, empty-query short-circuit
- Album search routing: bare query → browse path, structured query →
text path, no-artist-match falls back to text, text path score filter
- Track search routing: browse path, dedupe-by-title across
live/compilation variants, structured query → text path, text path
score filter
All mock the underlying MusicBrainzClient — no network calls.
Also adds a WHATS_NEW entry under 2.40 explaining the three user-visible
changes: Artists section now populates, album/track results match the
searched artist instead of random title collisions, and search completes
in ~3 seconds instead of 30+.
