feat: module architecture improvements — session keys, dependency graph, event dispatcher, deactivation hooks

Six targeted improvements to the modular monolith platform:

1. Fix AddressBook session key prefix to follow module.<id>.* convention
2. Move ADDRESS_BOOK_VIEW permission constant from core PermissionService into module
3. Add declarative JSON schema for module manifests (.agents/contracts/)
4. Add `requires` field with missing-dependency and circular-dependency detection
5. Add lightweight fire-and-forget event dispatcher (user.created/deleted/login/logout)
6. Add module deactivation hook interface and CLI script (bin/module-deactivate.php)

Includes 15 new architecture/unit tests covering all new functionality.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lib/Service/User/UserAccountService.php

@@ -2,6 +2,7 @@
 
 namespace MintyPHP\Service\User;
 
+use MintyPHP\App\Module\ModuleEventDispatcher;
 use MintyPHP\I18n;
 use MintyPHP\Repository\Support\DatabaseSessionRepository;
 use MintyPHP\Repository\User\UserListQueryRepositoryInterface;
@@ -36,7 +37,8 @@ class UserAccountService
         private readonly TenantScopeService $scopeGateway,
         private readonly UserDirectoryGateway $directoryGateway,
         private readonly SystemAuditService $systemAuditService,
-        private readonly DatabaseSessionRepository $databaseSessionRepository
+        private readonly DatabaseSessionRepository $databaseSessionRepository,
+        private readonly ?ModuleEventDispatcher $eventDispatcher = null
     ) {
     }
 
@@ -112,6 +114,12 @@ class UserAccountService
             'target_uuid' => (string) ($user['uuid'] ?? ''),
         ]);
 
+        $this->eventDispatcher?->dispatch('user.deleted', [
+            'user_id' => $userId,
+            'uuid' => (string) ($user['uuid'] ?? ''),
+            'actor_user_id' => $currentUserId,
+        ]);
+
         return ['ok' => true, 'user' => $user];
     }
 
@@ -291,6 +299,12 @@ class UserAccountService
             ],
         ]);
 
+        $this->eventDispatcher?->dispatch('user.created', [
+            'user_id' => $userId,
+            'uuid' => is_string($uuid) ? $uuid : '',
+            'actor_user_id' => $currentUserId,
+        ]);
+
         return ['ok' => true, 'form' => $form, 'uuid' => $uuid];
     }