- 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>