feat: improve mobile ux and record display
- fix @ symbol positioning: larger (1.2rem) and better aligned with handle
- add structured record display with headers and content sections
- add copy button to each record with visual feedback
- improve mobile responsiveness for identity circle and records
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>