- Add Next.js print route at /[locale]/print/[year]/[month]
- Implement fetchBarcodeDataForPrint function with user authentication
- Create PrintPreview component with basic table layout
- Add proper 404 handling with not-found.tsx
- Fix barcode image display with flexible data URL handling
- Filter and sort bills with barcode data for consistent display
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
