test: cover review edge cases and repair paths

app/git.test.js

@@ -1,4 +1,4 @@
-import { describe, it, before, after, beforeEach } from 'node:test';
+import { describe, it, before, after, beforeEach, mock } from 'node:test';
 import assert from 'node:assert/strict';
 import fs from 'fs';
 import os from 'os';
@@ -89,6 +89,18 @@ describe('commitAndPush', () => {
     const failSpawn = () => ({ status: 1, stdout: '', stderr: 'fatal: error', error: null });
     await assert.doesNotReject(() => commitAndPush(workspace, path.join(workspace, 'repo'), failSpawn));
   });
+
+  it('logs failure when git command fails', async () => {
+    const failSpawn = () => ({ status: 1, stdout: '', stderr: 'fatal: error', error: null });
+    const logs = [];
+    mock.method(console, 'log', (...args) => { logs.push(args.join(' ')); });
+    try {
+      await commitAndPush(workspace, path.join(workspace, 'repo'), failSpawn);
+      assert.ok(logs.some(line => line.includes('Runner failed: commit/push 失敗')), 'expected failure log');
+    } finally {
+      mock.restoreAll();
+    }
+  });
 });
 
 describe('cloneRepo', () => {