First step of taste-profile fidelity via metadata enrichment (milestone
#160, task #1490) — no ML sidecar, operator's constraint.
The taste profile's tag facet is built purely from raw ID3 tracks.genre
(splitGenres in internal/taste/profile.go). This lands the data layer for
enriching it with track-level folksonomy tags:
- track_tags(track_id, tag, weight) — a global cache of style/mood tags,
top-K per track, weight = normalized folksonomy strength [0,1].
- tracks.tag_source / tag_sources_version — versioned enrichment
bookkeeping mirroring artists.artist_art_source (NULL = eligible,
provider name = found, 'none' = settled, version bump = re-process).
- Queries: ListTracksMissingTags (batch drainer), DeleteTrackTags +
InsertTrackTag (atomic per-track replace), SetTrackTagSource, and
ListPlayed/LikedTrackTagsForUser for the recompute to union enriched
tags into the tag facet alongside genre.
No consumer yet — the enricher (MusicBrainz + Last.fm providers,
track-level) and the taste-recompute integration land next.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
bvandeusen
20a76f4b39