feat: add notification API endpoints

src/Controller/NotificationController.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller;
+
+use App\Entity\User;
+use App\Repository\NotificationRepository;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Security\Http\Attribute\IsGranted;
+
+class NotificationController extends AbstractController
+{
+    #[Route('/api/notifications', methods: ['GET'])]
+    #[IsGranted('ROLE_USER')]
+    public function index(NotificationRepository $notificationRepository): JsonResponse
+    {
+        /** @var User $user */
+        $user = $this->getUser();
+
+        $notifications = $notificationRepository->findRecentForUser($user);
+        $unreadCount = $notificationRepository->countUnreadForUser($user);
+
+        return $this->json([
+            'unreadCount' => $unreadCount,
+            'notifications' => array_map(fn ($n) => [
+                'id' => $n->getId(),
+                'message' => $n->getMessage(),
+                'read' => $n->isRead(),
+                'createdAt' => $n->getCreatedAt()->format('c'),
+            ], $notifications),
+        ]);
+    }
+
+    #[Route('/api/notifications/read', methods: ['POST'])]
+    #[IsGranted('ROLE_USER')]
+    public function markRead(NotificationRepository $notificationRepository): JsonResponse
+    {
+        /** @var User $user */
+        $user = $this->getUser();
+
+        $notificationRepository->markAllReadForUser($user);
+
+        return $this->json(null, Response::HTTP_NO_CONTENT);
+    }
+}