Integrate pgroups for shipment data security

Added `pgroups` to secure and associate data with specific permission groups. Updated backend routers, database models, and API endpoints to handle authorization based on `pgroups`. Adjusted frontend components and hooks to support `pgroups` in data fetching and management workflows.

backend/app/routers/protected_router.py

@@ -3,6 +3,7 @@ from fastapi import APIRouter, Depends
 from app.routers.auth import get_current_user
 from app.routers.address import address_router
 from app.routers.contact import contact_router
+from app.routers.shipment import shipment_router
 
 protected_router = APIRouter(
     dependencies=[Depends(get_current_user)]  # Applies to all routes
@@ -10,3 +11,6 @@ protected_router = APIRouter(
 
 protected_router.include_router(address_router, prefix="/addresses", tags=["addresses"])
 protected_router.include_router(contact_router, prefix="/contacts", tags=["contacts"])
+protected_router.include_router(
+    shipment_router, prefix="/shipments", tags=["shipments"]
+)