- Fix artist_name null handling in header component with email fallback - Fix authentication in recording endpoints to use req.accountability - Change duration field type from integer to double precision for millisecond precision - Add createRecording service function with proper authentication - Update play page to use fetch API for recording saves 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>