feat(modules): harden module platform with event constants, validation checks, and CLI improvements

- Add ModuleEvents constants class with all 8 event strings; update dispatch call sites
- ValidateCommand: check AuthorizationPolicy container registration (check 20)
- ValidateCommand: warn on unknown event_listeners keys (check 21)
- make:module --simple flag for minimal manifests
- module:deactivate reverse-dependency warning
- 12 new PHPUnit tests covering all improvements

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

core/Service/Auth/AuthService.php

@@ -3,6 +3,7 @@
 namespace MintyPHP\Service\Auth;
 
 use MintyPHP\App\Module\ModuleEventDispatcher;
+use MintyPHP\App\Module\ModuleEvents;
 use MintyPHP\Auth;
 use MintyPHP\Http\SessionStoreInterface;
 use MintyPHP\Repository\User\UserReadRepositoryInterface;
@@ -132,7 +133,7 @@ class AuthService
             'actor_tenant_id' => $this->currentTenantIdFromSession(),
         ]);
 
-        $this->eventDispatcher?->dispatch('user.login', [
+        $this->eventDispatcher?->dispatch(ModuleEvents::USER_LOGIN, [
             'user_id' => $userId,
             'provider' => 'local',
         ]);
@@ -226,7 +227,7 @@ class AuthService
             'metadata' => ['provider' => $loginProvider],
         ]);
 
-        $this->eventDispatcher?->dispatch('user.login', [
+        $this->eventDispatcher?->dispatch(ModuleEvents::USER_LOGIN, [
             'user_id' => $userId,
             'provider' => $loginProvider,
         ]);
@@ -290,7 +291,7 @@ class AuthService
         $actorUserId = (int) ($this->sessionUser()['id'] ?? 0);
         $actorTenantId = $this->currentTenantIdFromSession();
 
-        $this->eventDispatcher?->dispatch('user.logout', [
+        $this->eventDispatcher?->dispatch(ModuleEvents::USER_LOGOUT, [
             'user_id' => $actorUserId,
         ]);