Add 1200x630 Open Graph card with visualizer bars and feature
price tags. Use summary_large_image for Twitter. Share receipt
now uses window.location.href instead of hardcoded URL.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Reflect the split into index.html/style.css/app.js, document the
probe-songs.py workflow and songs.json auto-loading, remove outdated
instructions about editing SONGS array in index.html.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Paywalled music player where every feature costs money — pause,
resume, skip, volume, even closing the app. Built with React 18
and Tone.js via CDN, zero build step.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
