Add ticket branch discovery by ticket key

app/Actions/Git/Gitea/GiteaProviderClient.php

@@ -4,6 +4,7 @@ namespace App\Actions\Git\Gitea;
 
 use App\Actions\Git\Contracts\GitProviderClient;
 use App\Actions\Git\Data\GitAuthenticatedUser;
+use App\Actions\Git\Data\GitBranch;
 use App\Actions\Git\Data\GitRepository;
 use App\Actions\Git\GitProviderKey;
 use Illuminate\Http\Client\PendingRequest;
@@ -75,6 +76,43 @@ class GiteaProviderClient implements GitProviderClient
         return $repositories;
     }
 
+    /**
+     * @return array<int, GitBranch>
+     */
+    public function listBranches(
+        string $baseUrl,
+        string $token,
+        string $owner,
+        string $repository,
+    ): array {
+        $page = 1;
+        $branches = [];
+
+        do {
+            /** @var array<int, array{name: string}> $payload */
+            $payload = $this->request($baseUrl, $token)
+                ->get(
+                    '/repos/'.rawurlencode($owner).'/'.rawurlencode($repository).'/branches',
+                    [
+                        'limit' => 100,
+                        'page' => $page,
+                    ],
+                )
+                ->throw()
+                ->json();
+
+            foreach ($payload as $branch) {
+                $branches[] = new GitBranch(
+                    name: $branch['name'],
+                );
+            }
+
+            $page++;
+        } while (count($payload) === 100);
+
+        return $branches;
+    }
+
     private function request(string $baseUrl, string $token): PendingRequest
     {
         return Http::acceptJson()