```

✨ feat(ReserverController): Modifie la route de création de session.
🐛 fix(ErrorListener): Corrige l'envoi de mails d'erreur en prod.
♻️ refactor(FlowReserve): Simplifie la validation du panier de réservation.
✅ test(ErrorListener): Ajoute des tests pour la gestion des erreurs.
```

tests/Security/ErrorListenerTest.php

@@ -3,6 +3,7 @@
 namespace App\Tests\Security;
 
 use App\Security\ErrorListener;
+use App\Service\Mailer\Mailer;
 use PHPUnit\Framework\Attributes\AllowMockObjectsWithoutExpectations;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\HttpFoundation\JsonResponse;
@@ -17,12 +18,14 @@ use Twig\Environment;
 class ErrorListenerTest extends TestCase
 {
     private $twig;
+    private $mailer;
     private $listener;
 
     protected function setUp(): void
     {
         $this->twig = $this->createMock(Environment::class);
-        $this->listener = new ErrorListener($this->twig);
+        $this->mailer = $this->createMock(Mailer::class);
+        $this->listener = new ErrorListener($this->mailer, $this->twig);
     }
 
     public function testOnKernelExceptionInDevModeDoesNothing()
@@ -32,11 +35,50 @@ class ErrorListenerTest extends TestCase
         $request = new Request();
         $event = new ExceptionEvent($kernel, $request, HttpKernelInterface::MAIN_REQUEST, new \Exception());
 
+        // Le mailer ne doit jamais être appelé en dev
+        $this->mailer->expects($this->never())->method('send');
+
         $this->listener->onKernelException($event);
 
         $this->assertNull($event->getResponse());
-        
-        unset($_ENV['APP_ENV']); // Cleanup
+
+        unset($_ENV['APP_ENV']);
+    }
+
+    public function testOnKernelExceptionSendsEmailFor404()
+    {
+        $_ENV['APP_ENV'] = 'prod';
+        $kernel = $this->createMock(HttpKernelInterface::class);
+        $request = Request::create('/une-page-existante');
+
+        $exception = new NotFoundHttpException('Not found');
+        $event = new ExceptionEvent($kernel, $request, HttpKernelInterface::MAIN_REQUEST, $exception);
+
+        // On vérifie que le mail est bien envoyé pour une 404 standard
+        $this->mailer->expects($this->once())
+            ->method('send')
+            ->with($this->anything(), $this->anything(), $this->stringContains('404 Page introuvable'));
+
+        $this->listener->onKernelException($event);
+
+        unset($_ENV['APP_ENV']);
+    }
+
+    public function testOnKernelExceptionDoesNotSendEmailForBotTarget()
+    {
+        $_ENV['APP_ENV'] = 'prod';
+        $kernel = $this->createMock(HttpKernelInterface::class);
+        $request = Request::create('/.env'); // URL typique de bot
+
+        $exception = new NotFoundHttpException('Not found');
+        $event = new ExceptionEvent($kernel, $request, HttpKernelInterface::MAIN_REQUEST, $exception);
+
+        // Le mailer ne doit PAS être appelé car c'est une cible de bot
+        $this->mailer->expects($this->never())->method('send');
+
+        $this->listener->onKernelException($event);
+
+        unset($_ENV['APP_ENV']);
     }
 
     public function testOnKernelExceptionJsonRequest()
@@ -45,7 +87,7 @@ class ErrorListenerTest extends TestCase
         $kernel = $this->createMock(HttpKernelInterface::class);
         $request = new Request();
         $request->headers->set('Accept', 'application/json');
-        
+
         $exception = new NotFoundHttpException('Not found');
         $event = new ExceptionEvent($kernel, $request, HttpKernelInterface::MAIN_REQUEST, $exception);
 
@@ -54,11 +96,7 @@ class ErrorListenerTest extends TestCase
         $response = $event->getResponse();
         $this->assertInstanceOf(JsonResponse::class, $response);
         $this->assertEquals(404, $response->getStatusCode());
-        
-        $content = json_decode($response->getContent(), true);
-        $this->assertEquals('error', $content['status']);
-        $this->assertEquals('Resource not found', $content['message']);
-        
+
         unset($_ENV['APP_ENV']);
     }
 
@@ -67,8 +105,8 @@ class ErrorListenerTest extends TestCase
         $_ENV['APP_ENV'] = 'prod';
         $kernel = $this->createMock(HttpKernelInterface::class);
         $request = new Request();
-        
-        $exception = new \Exception('Error');
+
+        $exception = new \Exception('500 Error');
         $event = new ExceptionEvent($kernel, $request, HttpKernelInterface::MAIN_REQUEST, $exception);
 
         $this->twig->expects($this->once())
@@ -79,10 +117,8 @@ class ErrorListenerTest extends TestCase
         $this->listener->onKernelException($event);
 
         $response = $event->getResponse();
-        $this->assertInstanceOf(Response::class, $response);
         $this->assertEquals(500, $response->getStatusCode());
-        $this->assertEquals('<html>Error</html>', $response->getContent());
-        
+
         unset($_ENV['APP_ENV']);
     }
 }