feat: report ai review commit status

app/gitea.js

@@ -95,6 +95,24 @@ export async function shouldSkipBotCommit({ sha = PR_HEAD_SHA || process.env.GIT
   return false;
 }
 
+export async function setCommitStatus(sha, state, description, context = 'ai-review/critical', targetUrl = '') {
+  if (!sha) throw new Error('commit sha is required for status update');
+  const payload = {
+    state,
+    context,
+    description,
+  };
+  if (targetUrl) payload.target_url = targetUrl;
+
+  const resp = await axios.post(api(`/repos/${GITEA_REPOSITORY}/statuses/${encodeURIComponent(sha)}`), payload, {
+    headers: headers(),
+    timeout: 30000,
+    httpsAgent,
+  });
+  console.log(`  ✅ status: sha=${sha} state=${state} context=${context} description=${description}`);
+  return resp.data;
+}
+
 /**
  * 過濾 diff 內容，移除路徑符合 excludePrefixes 的區塊。
  * 每個區塊以 "diff --git a/<prefix>" 開頭判斷，使用 startsWith 精確比對前綴。