feat : init Central project — Symfony 8 + Nuxt 4 + Docker starter

Same architecture as Lesstime: API Platform 4, JWT auth, @malio/layer-ui,
PostgreSQL 16, Docker Compose (ports 8083/3003/5436), dark mode theme.

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

src/State/MeProvider.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\State;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProviderInterface;
+use App\Entity\User;
+use Symfony\Bundle\SecurityBundle\Security;
+
+/**
+ * @implements ProviderInterface<User>
+ */
+final readonly class MeProvider implements ProviderInterface
+{
+    public function __construct(
+        private Security $security,
+    ) {}
+
+    public function provide(Operation $operation, array $uriVariables = [], array $context = []): User
+    {
+        // @var User $user
+        return $this->security->getUser();
+    }
+}