Add wechat reminder LLM admin toggle

src/admin/pages/WechatPage.tsx

@@ -11,6 +11,7 @@ import {
   listWechatMessages,
   listWechatWebNotifications,
   resumeWechatDigest,
+  updateWechatScheduleLlmConfig,
 } from '../../api/client';
 import type {
   AdminUserRow,
@@ -38,6 +39,7 @@ function safeSummary(summary: WechatAdminSummary | null) {
       bindPath: null,
       tokenEndpointConfigured: false,
       customerServiceEndpointConfigured: false,
+      scheduleLlmEnabled: false,
     },
     counts: summary?.counts ?? {
       boundUsers: 0,
@@ -88,6 +90,7 @@ export function WechatPage() {
   const [notifyBody, setNotifyBody] = useState('');
   const [notifyType, setNotifyType] = useState('manual');
   const [notifyChannels, setNotifyChannels] = useState<Array<'web' | 'wechat'>>(['web']);
+  const [scheduleLlmEnabled, setScheduleLlmEnabled] = useState(false);
   const [loading, setLoading] = useState(true);
   const [busy, setBusy] = useState(false);
   const [error, setError] = useState<string | null>(null);
@@ -117,6 +120,7 @@ export function WechatPage() {
           listAdminUsers({ page: 1, pageSize: 200, status: 'active' }),
         ]);
       setSummary(nextSummary);
+      setScheduleLlmEnabled(nextSummary.config.scheduleLlmEnabled ?? false);
       setBindings(nextBindings);
       setMessages(nextMessages);
       setDigests(nextDigests);
@@ -224,6 +228,13 @@ export function WechatPage() {
     }
   };
 
+  const handleSaveScheduleLlm = async () => {
+    await runAction(async () => {
+      await updateWechatScheduleLlmConfig({ scheduleLlmEnabled });
+      setNotice(`提醒待办 LLM 已${scheduleLlmEnabled ? '开启' : '关闭'}。`);
+    });
+  };
+
   return (
     <div className="admin-page">
       <div className="admin-page-head">
@@ -280,7 +291,28 @@ export function WechatPage() {
               <dt>推送 worker</dt>
               <dd>{summary.config.reminderWorkerEnabled ? '已启用' : '未启用'}</dd>
             </div>
+            <div>
+              <dt>提醒待办 LLM</dt>
+              <dd>{summary.config.scheduleLlmEnabled ? '已开启' : '已关闭'}</dd>
+            </div>
           </dl>
+          <div className="wechat-toolbar" style={{ marginTop: 16, justifyContent: 'space-between', alignItems: 'center' }}>
+            <label>
+              <input
+                type="checkbox"
+                checked={scheduleLlmEnabled}
+                onChange={(event) => setScheduleLlmEnabled(event.target.checked)}
+                disabled={busy}
+              />{' '}
+              启用提醒待办 LLM 辅助识别
+            </label>
+            <button type="button" className="ghost-btn" onClick={() => void handleSaveScheduleLlm()} disabled={busy}>
+              {busy ? '保存中…' : '保存开关'}
+            </button>
+          </div>
+          <p className="muted" style={{ marginTop: 8 }}>
+            默认关闭。开启后仅在规则未识别出提醒意图时，才调用后台已选中的 LLM 做补充解析；复杂定时提醒仍走原有会话链路。
+          </p>
         </section>
       )}