Show genres on detail pages and fill them on scrobble

[crimsonsunset]

Summary

Music artist, album, podcast, and episode pages store genres and were not rendering them. Artist, album, and podcast pages now show those chips. An episode page shows the parent show's genres, which season metadata already copies down.

Scrobble fill is unchanged from the first commits: an album saved with no genres is filled from its MusicBrainz release group, and a play with no album genres falls back to the artist. After that, the first non-empty genre list is copied onto the artist, album, track, and play rows that are still empty. An album page with no album genres shows the artist's.

Rebased onto current latest.

Changes overview

In ticket / planned scope

• Render the genre chips the artist page already built from MusicBrainz, and register that sidebar section
• On scrobble, fill an empty album from its MusicBrainz release group, then resync the play
• Fall back to the album artist's genres when the album still has none
• Store that matched list on the related rows that are still empty

Added while implementing

• Render album.genres on the music album page and register the album sidebar section
• Render show.genres on the podcast show page
• Render season_metadata.genres on the episode page
• Album pages fall back to the artist genres for display when the album list is empty

What ships

Area	What
Artist page	Genre chips in the sidebar
Album page	Stored album genres, or the artist's when the album has none
Podcast page	Stored show genres under the title
Episode page	Parent show genres
Scrobble	Album release-group fill, artist fallback, then copy onto empty related rows

Key technical decisions

• Display reads stored names. The artist page still uses the MusicBrainz list the view already built when the chips come from the provider payload
• Episode pages do not invent a genre field. Season metadata already sets genres from the show
• A row that already has genres is left alone when the matched list is copied

Test plan

• Artist, album, and podcast pages show genre chips
• An episode page shows the parent show's genres
• A scrobble whose album has no genres picks up the release group, then the artist
• Those names land on the album, track, and play when those rows were empty
• An album with no genres of its own shows the artist's on the album page

Related

• Brought up to date with latest and the genre-match commit added

Screenshots

music-artist

	Before	After
desktop, light
desktop, dark
phone, light
phone, dark

music-album

	Before	After
desktop, light
desktop, dark
phone, light
phone, dark

[dannyvfilms]

Thanks for this! Genres now show on several detail pages (album, artist, episode, podcast), so could you add before/after screenshots, or a short screen recording, to the PR description?

If an AI agent did the work, screenshots of the running app (or a link to a published artifact page that shows them) are expected. The updated PR template in #1403 has a short section for this.

---

Generated by Claude Code

[crimsonsunset]

Added screenshots to the description: desktop and phone, light and dark, before and after where the page already existed.