- Update index.html file input to accept audio/*,video/*
- Add engine selection dropdown (Local vs Server) in index.html
- Implement JS bufferToWav WAV encoder in app.js (Float32Array PCM to 16-bit WAV)
- Integrate server-side transcribing route via FormData POST in app.js
- Update DEVELOPMENT_RULES.md to mark browser-side extraction as implemented
Co-Authored-By: Claude Opus 4.8 <noreply@anthreply.com>