- Added comprehensive dark mode styling to all pages:
* Dashboard (workflow guide, secondary text, log items)
* Admin panel with user management system
* Content/playlist management page
* Upload media page
* Add player page
- Implemented user management system:
* Create/edit/delete users
* Two role types (user/admin)
* Reset password functionality
* Role-based permissions
- Replaced group assignment with playlist assignment:
* Players now directly assigned to playlists
* Updated add player form and backend
* Removed group selection from player creation
- Fixed bugs:
* Updated instance_path configuration for SQLite
* Fixed import path in app factory
* Updated dependencies (Pillow 11.0.0, removed gevent)
- Added start.sh script for easy development server launch
- Created 10 SVG icon files in app/static/icons/ (Feather Icons style)
- Updated base.html with SVG icons in navigation and dark mode toggle
- Updated dashboard.html with icons in stats cards and quick actions
- Updated content_list_new.html (playlist management) with SVG icons
- Updated upload_media.html with upload-related icons
- Updated manage_player.html with player management icons
- Icons use currentColor for automatic theme adaptation
- Removed emoji dependency for better Raspberry Pi compatibility
- Added ICON_INTEGRATION.md documentation
