Add comprehensive printer configuration support:
- New Printers.php config with role-based printer defaults (lab, phlebo, reception)
- Update LabelController for configurable printer routing with error handling
- Add ResponseTrait for proper JSON responses (success/error status)
- Update routes to accept optional printer parameter for label printing
- Add default printer configuration per role in shared config
Enhance report generation workflow:
- Support REPORT_LANG from CM_REQUESTS table for language preference
- Prioritize URL parameter, then database value, then default
- Add language info to PDF generation response (Indonesian/English)
- Update all report methods (view, eng, preview, generate) with unified logic
Improve UI and user experience:
- Add dialog_results_generate to all role dashboards (superuser, admin, lab, phlebo, cs)
- Update skeleton loading states widths in content requests
- Add printer selection capability in sample collection flow
Add comprehensive UAT documentation:
- New UAT_GDC_CMOD_Checklist.md with 150+ test cases
- Cover all roles: superuser, admin, lab, phlebo, cs, and cross-role scenarios
- Include acceptance criteria (functional, security, performance, usability, data integrity)
- Test categories: authentication, user management, validation, sample management, audit trail, reporting
- Detailed sign-off structure for stakeholders
Add barcode printing documentation:
- docs/barcode_print_all.php - all labels printing implementation
- docs/barcode_print_coll.php - collection label implementation
- docs/barcode_print_disp.php - dispatch label implementation
Update TODO tracking:
- Mark Reprint Label and PDF Generation as completed
- Update pending tasks for testing and audit trails
