Claude
f1941a90db
feat(02-03): redesign frontend — browser audio element, beat markers, animation selector
- index.html: add <audio id=player> (hidden), beat-indicator dot in header
- index.html: animation selector panel with Beat Pulse/Strobe/Color Wave/Rainbow options
- index.html: remove seek slider + time display (browser audio element has native controls)
- index.html: upload button + file selector remain in transport bar
- app.js: wire <audio> element — play/pause/seeked/timeupdate events send WS ticks
- app.js: 10Hz setInterval tick loop (supplements native timeupdate ~4Hz)
- app.js: WS beat message -> flashBeatIndicator() animation
- app.js: loadWaveformAndBeats() draws waveform peaks + beat marker lines on canvas
- app.js: loadSelectedFile() sets audio.src=/shows/filename, fetches beats+waveform
- app.js: upload response caches beat data returned from server immediately
- style.css: .beat-indicator with .beat-flash (yellow glow animation)
- style.css: .animation-select-input for the animations panel dropdown