feat(permissions) : add role-based access control system

Backend:
- Add role hierarchy (ADMIN > GESTIONNAIRE > VIEWER > USER) in security.yaml
- Add password authentication on profile activation (SessionProfileController)
- Add SessionProfileAuthenticator with stateless API firewall
- Add ProfilePasswordHasher state processor for API Platform
- Add security annotations on all 18 API Platform entities
- Add denyAccessUnlessGranted on all 13 custom controllers
- Add AdminProfileController for profile/role management (/api/admin/profiles)
- Add InitProfilePasswordsCommand for initial admin setup
- Simplify SessionProfilesController to list-only (removed create/delete)

Frontend (submodule update):
- Add usePermissions composable (isAdmin, canEdit, canView, isGranted)
- Add password login modal on profiles page
- Add admin backoffice page for profile management
- Disable all form fields for ROLE_VIEWER across all edit/create pages
- Show navigation buttons for all roles, hide destructive actions for viewers
- Add readonly mode to ModelTypeForm and site/constructeur modals
- Guard /admin routes in middleware
- Configure Vite proxy for API requests

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/Entity/Document.php

@@ -21,11 +21,17 @@ use Symfony\Component\Serializer\Attribute\Groups;
 #[ORM\HasLifecycleCallbacks]
 #[ApiResource(
     operations: [
-        new GetCollection(normalizationContext: ['groups' => ['document:list']]),
-        new Get(normalizationContext: ['groups' => ['document:list', 'document:detail']]),
-        new Post(),
-        new Put(),
-        new Delete(),
+        new GetCollection(
+            security: "is_granted('ROLE_VIEWER')",
+            normalizationContext: ['groups' => ['document:list']],
+        ),
+        new Get(
+            security: "is_granted('ROLE_VIEWER')",
+            normalizationContext: ['groups' => ['document:list', 'document:detail']],
+        ),
+        new Post(security: "is_granted('ROLE_GESTIONNAIRE')"),
+        new Put(security: "is_granted('ROLE_GESTIONNAIRE')"),
+        new Delete(security: "is_granted('ROLE_GESTIONNAIRE')"),
     ],
     paginationClientItemsPerPage: true,
     paginationMaximumItemsPerPage: 200