Refactor user authentication and dashboard features

- Added `is_admin` field to User model for role management.
- Updated user context middleware to include current user in templates.
- Enhanced session management with improved debug middleware.
- Refactored dashboard view to fetch user-specific data and recent events.
- Improved login and registration templates for better user experience.
- Added admin routes with access control for admin users.
- Updated Docker configuration for better error logging and dependency management.
- Updated requirements to include new dependencies and specify versions.

app/templates_config.py

@@ -20,3 +20,4 @@ templates = MyJinjaTemplates(directory=str(BASE_DIR / "templates"))
 
 # Register a context processor to add current_user to all templates
 templates.env.globals["get_current_user"] = lambda: None  # Will be overridden at runtime
+templates.env.globals["current_user"] = None