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/UserServicesFactory.php

@@ -2,6 +2,7 @@
 
 namespace MintyPHP\Service\User;
 
+use MintyPHP\App\Module\ModuleEventDispatcher;
 use MintyPHP\Repository\Access\UserRoleRepositoryInterface;
 use MintyPHP\Repository\Org\UserDepartmentRepositoryInterface;
 use MintyPHP\Repository\Support\DatabaseSessionRepository;
@@ -33,7 +34,8 @@ class UserServicesFactory
         private readonly UserRepositoryFactory $userRepositoryFactory,
         private readonly UserGatewayFactory $userGatewayFactory,
         private readonly DatabaseSessionRepository $databaseSessionRepository,
-        private readonly \Closure $assignableRoleServiceFactory
+        private readonly \Closure $assignableRoleServiceFactory,
+        private readonly ?ModuleEventDispatcher $eventDispatcher = null
     ) {
     }
 
@@ -49,7 +51,8 @@ class UserServicesFactory
             $this->userGatewayFactory->getTenantScopeService(),
             $this->createUserDirectoryGateway(),
             $this->auditServicesFactory->createSystemAuditService(),
-            $this->databaseSessionRepository
+            $this->databaseSessionRepository,
+            $this->eventDispatcher
         );
     }