fix: drop qdreader legacy compatibility

tests/qdreader_plugin.test.mjs

@@ -127,33 +127,16 @@ test('bucketGet/bucketSet fallback works when get/set are unavailable in Autman-
   assert.equal(JSON.parse(bucketStore['hermes_qidian.qdreader_user_bind_json'])['12345'], undefined);
 });
 
-test('reads legacy otto bucket but writes new hermes_qidian bucket', () => {
+test('hermes_qidian bucket values are read and written without legacy bucket fallback', () => {
   const bucketStore = {
-    'otto.qdreader_cookie_json': JSON.stringify({ '12345': cookie }),
-    'otto.qdreader_user_bind_json': JSON.stringify({ '12345': 'user-a' }),
+    'hermes_qidian.qdreader_cookie_json': JSON.stringify({ '12345': cookie }),
+    'hermes_qidian.qdreader_user_bind_json': JSON.stringify({ '12345': 'user-a' }),
   };
   const r = runPlugin({ content: '启点账号', bucketStore, userId: 'user-a', listens: ['3', '1', '主号'] });
   assert.match(r.replies.join('\n'), /已更新备注/);
   assert.equal(JSON.parse(r.bucketStore['hermes_qidian.qdreader_remark_json'])['12345'], '主号');
 });
 
-test('legacy default sign api base falls back to qdreader path when root /sign is empty', () => {
-  const store = { qdreader_cookie_json: JSON.stringify({ '12345': cookie }), qdreader_sign_api: 'https://api.120399.xyz' };
-  const r = runPlugin({
-    content: '启点签到',
-    store,
-    requests: [
-      { statusCode: 404, body: '' },
-      { body: { code: 200, data: { 'QD-Sign': 'sig2' } } },
-      { statusCode: 200, body: { code: 0, msg: '签到成功' } },
-    ],
-  });
-  assert.equal(r.calls.length, 3);
-  assert.match(r.calls[0].url, /api\.120399\.xyz\/sign$/);
-  assert.match(r.calls[1].url, /api\.120399\.xyz\/qdreader\/sign$/);
-  assert.match(r.replies[0], /✅ 12\*\*\*45/);
-});
-
 test('qidian request retries transient request errors', () => {
   const store = { qdreader_cookie_json: JSON.stringify({ '12345': cookie }), qdreader_retry_count: '2' };
   const r = runPlugin({