feat : add task Gitea branches endpoints (list + create)

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

src/ApiResource/GiteaBranch.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\ApiResource;
+
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\GetCollection;
+use ApiPlatform\Metadata\Post;
+use App\State\GiteaBranchProcessor;
+use App\State\GiteaBranchProvider;
+use Symfony\Component\Serializer\Attribute\Groups;
+
+#[ApiResource(
+    operations: [
+        new GetCollection(
+            uriTemplate: '/tasks/{taskId}/gitea/branches',
+            normalizationContext: ['groups' => ['gitea_branch:read']],
+            provider: GiteaBranchProvider::class,
+        ),
+        new Post(
+            uriTemplate: '/tasks/{taskId}/gitea/branches',
+            denormalizationContext: ['groups' => ['gitea_branch:write']],
+            normalizationContext: ['groups' => ['gitea_branch:read']],
+            provider: GiteaBranchProvider::class,
+            processor: GiteaBranchProcessor::class,
+        ),
+    ],
+)]
+final class GiteaBranch
+{
+    #[Groups(['gitea_branch:read'])]
+    public string $name = '';
+
+    #[Groups(['gitea_branch:write'])]
+    public string $type = 'feature';
+
+    #[Groups(['gitea_branch:write'])]
+    public string $baseBranch = 'main';
+
+    /**
+     * @var array<array{sha: string, message: string, author: string, date: string}>
+     */
+    #[Groups(['gitea_branch:read'])]
+    public array $commits = [];
+}