`store.elapsed` is a Pinia getter (a cached Vue computed) that interpolates
with `Date.now()`. Because `Date.now()` is not a reactive dependency, the
computed only re-ran on WebSocket pushes / the 3s server poll, so the bottom
progress bar jumped ~3s at a time and lyric highlighting lagged ~half a line —
even though the consumers read it from a 60fps requestAnimationFrame loop.
Add a pure `interpolateElapsed()` helper and a non-cached `liveElapsed()` store
action. The per-frame consumers now call `liveElapsed()` so the value advances
every frame instead of returning a frozen cache:
- web/src/components/Player.vue (desktop progress bar, rAF)
- web/src/App.vue (mobile progress bar, rAF)
- web/src/views/Lyrics.vue (lyric highlight, 500ms interval)
pause() now freezes at the live value rather than a possibly-stale cached one.
The `elapsed` getter is refactored onto the same helper (behaviour unchanged).
Adds web/src/stores/elapsed.test.ts covering the time-advancing interpolation,
paused freeze, no-anchor, and duration-clamp cases.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Playlist: add console.error in catch block so load failures are visible
- Player: add progress bar with requestAnimationFrame and time display
- Player: extract toggleQueue function with debug logging for queue panel
- WebSocket: fetch queue on stateChange when not included in event payload
- Lyrics: use CSS transform scrolling and reduce sync to 500ms to fix flicker
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add play mode cycle button (seq/loop/random/rloop) to Player bar
- Wire GET /api/player/:botId/history to query database instead of returning empty array
- Pass database instance from server.ts to createPlayerRouter
- Add back navigation button to Playlist, Lyrics, History, Search, and Settings views
- SongCard already had dblclick-to-play (no change needed)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Player store tracks playStartedAt/pausedElapsed for elapsed time
- Queue component fetches from server when opened
- Lyrics page syncs every 200ms using elapsed time
- Lyrics auto-scroll to active line with smooth animation
- Translation lines shown below main lyrics
- Fade mask on lyrics scroll area
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
