feat: major improvements and fixes

- Fixed Docker permissions issue by running as root user
- Added DEBUG_MODE support with conditional Swagger docs and auto-reload
- Created start.sh script for conditional Uvicorn execution
- Removed verbose debug logs from WebSocket status endpoint
- Added comprehensive screenshots to documentation
- Enhanced help tooltip with full-screen modal design
- Added theme switcher to error page
- Updated documentation with local development and Docker benefits
- Fixed WebSocket status display issues
- Improved hotkey functionality and documentation
- Added detailed project descriptions for local dev and Docker users

Technical improvements:
- Dockerfile: removed appuser switch, simplified permissions
- docker-compose.yml: kept user: 0:0 for Docker socket access
- app.py: removed debug prints, added DEBUG_MODE support
- templates: enhanced UI/UX with better tooltips and themes
- docs: comprehensive updates with new screenshots and descriptions

docker-compose.yml

@@ -59,6 +59,9 @@ services:
       # Настройки AJAX обновления
       LOGBOARD_AJAX_UPDATE_INTERVAL: ${LOGBOARD_AJAX_UPDATE_INTERVAL:-2000}
 
+      # Настройки режима отладки
+      DEBUG_MODE: ${DEBUG_MODE:-false}
+
     ports:
       - "${LOGBOARD_PORT:-9001}:${LOGBOARD_PORT:-9001}"