fix(qdreader): archive daily sign logs at midnight

tests/qdreader_plugin.test.mjs

@@ -225,6 +225,58 @@ test('quick submit rejects save when Autman JS has no user identity', () => {
   assert.equal(r.store.qdreader_user_bind_json, undefined);
 });
 
+test('cron archives previous run log and clears daily logs before new midnight sign', () => {
+  const previousRun = {
+    runId: '20260518_cron',
+    source: 'cron',
+    startedAt: '2026-05-18T00:00:00.000Z',
+    finishedAt: '2026-05-18T00:00:02.000Z',
+    total: 1,
+    okCount: 1,
+    failCount: 0,
+    items: [{ uid: '12345', ok: true, msg: '昨日签到成功', time: '2026-05-18T00:00:01.000Z' }],
+  };
+  const store = {
+    qdreader_cookie_json: JSON.stringify({ '12345': cookie }),
+    qdreader_user_bind_json: JSON.stringify({ '12345': 'user-a' }),
+    qdreader_last_run_json: JSON.stringify(previousRun),
+    qdreader_last_result_json: JSON.stringify({ '12345': JSON.stringify({ ok: true, msg: '昨日签到成功' }) }),
+  };
+  const r = runPlugin({ content: '', store, userId: 'cron' });
+  const archive = JSON.parse(r.store.qdreader_archive_json);
+  assert.equal(archive['2026-05-18'].runId, '20260518_cron');
+  assert.equal(archive['2026-05-18'].items[0].msg, '昨日签到成功');
+  assert.equal(JSON.parse(r.store.qdreader_last_run_json).source, 'cron');
+  assert.equal(JSON.parse(JSON.parse(r.store.qdreader_last_result_json)['12345']).msg, '签到成功');
+});
+
+test('query falls back to archived sign results after daily log was cleared', () => {
+  const archiveRun = {
+    source: 'cron',
+    finishedAt: '2026-05-18T00:00:02.000Z',
+    total: 2,
+    okCount: 1,
+    failCount: 1,
+    items: [
+      { uid: '12345', ok: true, msg: '签到成功', time: '2026-05-18T00:00:01.000Z' },
+      { uid: '67890', ok: false, msg: 'Cookie失效', time: '2026-05-18T00:00:01.000Z' },
+    ],
+  };
+  const store = {
+    qdreader_cookie_json: JSON.stringify({ '12345': cookie, '67890': cookie.replace(/12345/g, '67890') }),
+    qdreader_user_bind_json: JSON.stringify({ '12345': 'user-a', '67890': 'user-a' }),
+    qdreader_remark_json: JSON.stringify({ '12345': '主号', '67890': '副号' }),
+    qdreader_last_run_json: '{}',
+    qdreader_last_result_json: '{}',
+    qdreader_archive_json: JSON.stringify({ '2026-05-18': archiveRun }),
+  };
+  const r = runPlugin({ content: '启点查询', store, userId: 'user-a', listens: ['1'] });
+  assert.match(r.replies[1], /启点最近归档签到记录/);
+  assert.match(r.replies[1], /最近归档：2026-05-18/);
+  assert.match(r.replies[1], /12\*\*\*45（主号）：✅ 签到成功/);
+  assert.match(r.replies[1], /67\*\*\*90（副号）：❌ Cookie失效/);
+});
+
 test('manual sign and cron sign both call sign gateway then qidian checkin', () => {
   const store = {
     qdreader_cookie_json: JSON.stringify({ '12345': cookie }),