feat(web): My Wave button, mood picker and endless wave playback (M4)

- WaveButton: TypeScript port of the prototype's canvas animation
  (orb and liquid), breathing at rest, pulsing to the track's BPM and
  energy in the cover palette, following the cursor, pressing with a
  spring; reduced motion and hidden tabs slow or stop it
- home: the wave in the centre with activity and mood chips; changing
  them while playing rebuilds the upcoming tracks without stopping
- player wave mode: asks for the next batch when two tracks are left,
  sends complete / skip / early skip / like / dislike as feedback and
  refreshes the queue right after a reaction or an early skip
- tracks expose bpm, energy and loudness once analysed; library page
  shows analysis progress and 7-day wave metrics; wave style setting

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/shared/ui/icons.ts

@@ -46,3 +46,14 @@ export { default as repeatIcon } from '@material-symbols/svg-400/rounded/repeat.
 export { default as repeatOneIcon } from '@material-symbols/svg-400/rounded/repeat_one.svg';
 export { default as historyIcon } from '@material-symbols/svg-400/rounded/history.svg';
 export { default as historyFillIcon } from '@material-symbols/svg-400/rounded/history-fill.svg';
+export { default as waveBoltIcon } from '@material-symbols/svg-400/rounded/bolt.svg';
+export { default as waveBedtimeIcon } from '@material-symbols/svg-400/rounded/bedtime.svg';
+export { default as waveCarIcon } from '@material-symbols/svg-400/rounded/directions_car.svg';
+export { default as waveRunIcon } from '@material-symbols/svg-400/rounded/directions_run.svg';
+export { default as waveFitnessIcon } from '@material-symbols/svg-400/rounded/fitness_center.svg';
+export { default as waveHeadphonesIcon } from '@material-symbols/svg-400/rounded/headphones.svg';
+export { default as waveRainyIcon } from '@material-symbols/svg-400/rounded/rainy.svg';
+export { default as waveHappyIcon } from '@material-symbols/svg-400/rounded/sentiment_satisfied.svg';
+export { default as waveSpaIcon } from '@material-symbols/svg-400/rounded/spa.svg';
+export { default as waveSunIcon } from '@material-symbols/svg-400/rounded/wb_sunny.svg';
+export { default as waveWeekendIcon } from '@material-symbols/svg-400/rounded/weekend.svg';