feat: prevent editing of assignments with applications or dispositions

src/Controller/Admin/Assignment/EditController.php

@@ -22,6 +22,7 @@ class EditController extends AbstractController
 
     #[Route('/admin/assignment/edit/{uuid}', name: 'app_admin_assignment_edit')]
     #[IsGranted('ROLE_ADMINISTRATIVE')]
+    #[IsGranted('EDIT', subject: 'assignment')]
     public function index(Assignment $assignment, Request $request): Response
     {
         $form = $this->createForm(AssignmentType::class, $assignment);