111 of 122 top-level src/utils/ files move into 16 topic folders (audio,
cache, cover, share, server, playback, playlist, deviceSync, waveform,
mix, format, export, changelog, ui, perf, componentHelpers). True
singletons with no cluster stay at the utils/ root.
Pure file-move: a path-aware codemod rewrote 539 relative-import
specifiers across 275 files; no logic touched. The hot-path coverage
gate list (.github/frontend-hot-path-files.txt) is updated to the new
paths for the 11 gated utils files — a mechanical consequence of the
move, not a CI change. tsc is green.
Four more domain-eng modules out of `api/subsonic.ts`:
- `subsonicPlaylists.ts` — `getPlaylists`/`getPlaylist`/`createPlaylist`
/`updatePlaylist`/`updatePlaylistMeta`/`uploadPlaylistCoverArt`/
`uploadArtistImage`/`deletePlaylist`. The two upload helpers use
the Tauri-side CORS bypass (`upload_playlist_cover` /
`upload_artist_image`).
- `subsonicPlayQueue.ts` — `getPlayQueue`/`savePlayQueue`.
- `subsonicRadio.ts` — Internet Radio CRUD (4 fns), Tauri-side cover
art ops (3 fns), RadioBrowser search/top + `fetchUrlBytes`.
- `subsonicStatistics.ts` — `fetchStatisticsLibraryAggregates`/
`fetchStatisticsOverview`/`fetchStatisticsFormatSample` with their
three per-server-folder caches and the `statisticsPageCacheKey`
helper. `STATS_CACHE_TTL` renamed from the misleadingly-shared
`RATING_CACHE_TTL` constant.
Also: drop ~20 now-unused type/value imports from `subsonic.ts`, trim
three orphan jsdoc comments left behind by earlier slices, fix four
`vi.mock` targets (`queueSync`, `playerStore.persistence`) plus the
dynamic `await import('../api/subsonic')` calls in `ContextMenu.tsx`
to point at the new module paths.
Pure code-move. subsonic.ts: 561 → 144 LOC (−417). What's left:
ping/pingWithCredentials/probeInstantMix/scheduleInstantMixProbe +
internal `apiWithCredentials`/`restBaseFromUrl`.
Heterogeneous "misc" cluster — seven small-to-medium actions that
didn't fit the more focused factories (transport / queue / Last.fm /
UI state):
- `playRadio` — switches the player into HTML5 radio mode.
- `previous` — Subsonic-style back: restart if past 3 s, otherwise
jump to the previous queue index.
- `setVolume` — clamps + propagates to Rust engine and radio sink.
- `setProgress` — pure UI state update for progress polling.
- `initializeFromServerQueue` — startup queue restore from Navidrome.
- `reanalyzeLoudnessForTrack` — toast + reseed the loudness cache.
- `reseedQueueForInstantMix` — replace the queue with a single track.
Pure code-move. playerStore.ts: 1167 → 1030 LOC (−137).
Frank Stellmacher