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