- Install qrcode npm package for proper QR code generation
- Create new Stimulus controller using qrcode library instead of external CDN
- Update ticket show view to use self-contained QR code generation
- Remove dependency on external qrserver.com API
- Generate valid, scannable QR codes client-side
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
