## Major Changes
### Authentication System
- Added passlib dependency for password hashing and security
- Integrated auth_service module with automatic admin seeding
- Added authentication blueprint and middleware
- Updated app initialization to ensure auth schema and default accounts
### Service Department Management
- Added build_service_department_tree() function for hierarchical data structure
- Supports nested parent-child relationships for department hierarchy
- Recursive sorting for consistent tree visualization
- Enables advanced admin interface features
### Dependencies
- Added passlib>=1.7.4 for secure password hashing
- Added openpyxl>=3.1.2 for Excel file processing
### UI Improvements
- Enhanced db_admin.html with tabbed interface styling
- Improved spacing and visual layout
- Better organization for multiple admin functions
## Technical Details
- Refactored app.py to use auth_service instead of deprecated ensure_database
- Maintains backward compatibility with existing v2 API
- Clean separation of authentication and business logic
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Co-Authored-By: Claude <noreply@anthropic.com>
Codex Agent