**Commit Message:**

Enhance app with active pgroup handling and token updates

Added active pgroup state management across the app for user-specific settings. Improved token handling with decoding, saving user data, and setting OpenAPI authorization. Updated components, API calls, and forms to support dynamic pgroup selection and user-specific features.

backend/app/routers/protected_router.py

@@ -0,0 +1,7 @@
+from fastapi import APIRouter, Depends
+
+from app.routers.auth import get_current_user
+
+protected_router = APIRouter(
+    dependencies=[Depends(get_current_user)]  # Applies to all routes
+)