fix(miniprogram): 修复多角色找茬测试 V3 发现的 8 个问题

1. EmptyState 默认 emoji 📭 → serif 首字圆形图标（影响 23 处使用）
2. 预约页英文副标题 "Appointment" 移除
3. consultation 页技术错误信息直接渲染到 UI → 用户友好提示
4. auth store restore() 增加 fallback：secureGet 失败时读 wx.getStorageSync
5. request.ts 新增 safeGet()：token/tenantId 读取容错
6. doctor/consultation useMemo 自引用死循环 → Math.ceil(total/20)
7. doctor/alerts 同样自引用 bug 修复
8. doctor/patients 死代码 totalPages + useMemo import 清理

apps/miniprogram/src/pages/appointment/index.tsx

@@ -90,7 +90,6 @@ export default function AppointmentList() {
       {/* 页面标题 */}
       <View className='page-header'>
         <Text className='page-title'>预约挂号</Text>
-        <Text className='page-subtitle'>Appointment</Text>
       </View>
 
       {/* 预约列表 */}

apps/miniprogram/src/pages/consultation/index.tsx

@@ -52,9 +52,8 @@ export default function Consultation() {
       }
       setTotal(resp.total || 0);
       setPage(pageNum);
-    } catch (e: unknown) {
-      const msg = e instanceof Error ? e.message : '加载失败';
-      setError(msg);
+    } catch {
+      setError('加载失败，请稍后重试');
     } finally {
       setLoading(false);
       loadingRef.current = false;

apps/miniprogram/src/pages/doctor/alerts/index.tsx

@@ -34,7 +34,7 @@ export default function AlertList() {
   const [total, setTotal] = useState(0);
   const [page, setPage] = useState(1);
 
-  const totalPages = useMemo(() => totalPages, [total]);
+  const totalPages = useMemo(() => Math.ceil(total / 20), [total]);
 
   useEffect(() => {
     loadAlerts();

apps/miniprogram/src/pages/doctor/consultation/index.tsx

@@ -22,7 +22,7 @@ export default function ConsultationList() {
   const [total, setTotal] = useState(0);
   const [page, setPage] = useState(1);
 
-  const totalPages = useMemo(() => totalPages, [total]);
+  const totalPages = useMemo(() => Math.ceil(total / 20), [total]);
 
   useEffect(() => {
     loadSessions();

apps/miniprogram/src/pages/doctor/patients/index.tsx

@@ -95,8 +95,6 @@ export default function PatientList() {
     return `${age}岁`;
   };
 
-  const totalPages = useMemo(() => Math.ceil(total / 20), [total]);
-
   if (loading && patients.length === 0) return <Loading />;
 
   return (