feat : add task Gitea pull requests endpoint

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

src/ApiResource/GiteaPullRequest.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\ApiResource;
+
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\GetCollection;
+use App\State\GiteaPullRequestProvider;
+use Symfony\Component\Serializer\Attribute\Groups;
+
+#[ApiResource(
+    operations: [
+        new GetCollection(
+            uriTemplate: '/tasks/{taskId}/gitea/pull-requests',
+            normalizationContext: ['groups' => ['gitea_pr:read']],
+            provider: GiteaPullRequestProvider::class,
+        ),
+    ],
+)]
+final class GiteaPullRequest
+{
+    #[Groups(['gitea_pr:read'])]
+    public int $number = 0;
+
+    #[Groups(['gitea_pr:read'])]
+    public string $title = '';
+
+    #[Groups(['gitea_pr:read'])]
+    public string $state = '';
+
+    #[Groups(['gitea_pr:read'])]
+    public bool $merged = false;
+
+    #[Groups(['gitea_pr:read'])]
+    public string $headBranch = '';
+
+    #[Groups(['gitea_pr:read'])]
+    public string $author = '';
+
+    #[Groups(['gitea_pr:read'])]
+    public string $url = '';
+
+    /**
+     * @var array<array{context: string, status: string, target_url: string}>
+     */
+    #[Groups(['gitea_pr:read'])]
+    public array $ciStatuses = [];
+}