fix(qdreader): use Beijing time for logs

tests/qdreader_plugin.test.mjs

@@ -268,6 +268,19 @@ test('manual sign also archives immediately after run', () => {
   assert.deepEqual(JSON.parse(r.store.qdreader_last_result_json), {});
 });
 
+test('logs and archive dates use Beijing time even when runtime date is UTC', () => {
+  const store = {
+    qdreader_cookie_json: JSON.stringify({ '12345': cookie }),
+    qdreader_user_bind_json: JSON.stringify({ '12345': 'user-a' }),
+  };
+  const r = runPlugin({ content: '', store, userId: 'cron', globals: { Date: fixedDateClass('2026-05-18T23:30:00.000Z') } });
+  assert.match(r.replies[0], /记录时间：2026-05-19 07:30:00/);
+  assert.match(r.replies[0], /日志已归档：2026-05-19/);
+  const archive = JSON.parse(r.store.qdreader_archive_json);
+  assert.equal(archive['2026-05-19'].finishedAt, '2026-05-19 07:30:00');
+  assert.equal(archive['2026-05-18'], undefined);
+});
+
 test('query falls back to archived sign results after daily log was cleared', () => {
   const archiveRun = {
     source: 'cron',