- Changed sequential numbering from slash to hyphen format (TEST-ORD-004-0001)
- Increased horizontal barcode bar width from 0.25mm to 0.30mm for better scanning
- Increased vertical barcode bar width from 0.15mm to 0.30mm for reliable readability
- Changed from 3-digit to 4-digit padding for piece numbers (0001 instead of 001)
- Removed aggressive scaling that was distorting barcode bars
- Barcodes now use optimal settings for thermal printers and handheld scanners
- Fix QZ Tray library loading errors (net::ERR_NAME_NOT_RESOLVED) by switching from CDN to local static file
- Add /labels/api/pairing-keys endpoint to fetch valid printer pairing keys
- Update print_labels.html to use local js/qz-tray.js
- Update print_lost_labels.html to use local js/qz-tray.js
- Update print_lost_labels_new.html to use correct path js/qz-tray.js
- Update fg_scan.html to use local js/qz-tray.js
- API returns active pairing keys from qz_pairing_keys table for printer selection
- Fix Docker build issues:
* Add missing system dependencies (build-essential, python3-dev, libpq-dev)
* Fix requirements.txt formatting (separate Flask-Session and openpyxl)
* Update openpyxl version to 3.1.5 (3.10.0 was invalid)
- Set proper folder permissions for Docker write access (app/ and data/)
- Add comprehensive test data for labels module:
* 8 sample orders (TEST-ORD-001 through TEST-ORD-008)
* Mix of printed/unprinted orders for testing
* Various product types, customers, and delivery dates
* Ready for QZ Tray printing functionality testing
- Include test data generation scripts for future use
- Application now fully containerized and ready for labels/printing testing
- Migrate print_labels.html and print_lost_labels.html to standalone pages with header and theme toggle
- Implement dark/light theme support using data-theme attribute and CSS variables
- Add PDF generation endpoints for single and batch label printing
- Copy pdf_generator.py from original app with full label formatting (80mm x 105mm)
- Fix data response handling to correctly access data.orders from API endpoints
- Synchronize table text sizes across both print pages
- Remove help buttons from print pages
- Database column rename: data_livrara → data_livrare for consistency
- Update routes to use correct database column names
- Add 7 test orders to database (4 unprinted, 3 printed)
- Implement QZ Tray integration with PDF fallback for label printing
- All CSS uses theme variables for dark/light mode synchronization
