perf(app): 添加登录状态检查并优化性能

- 在多个页面添加 isLoggedIn 检查，防止未登录时进行不必要的数据获取
- 使用 React.memo 和 useMemo 优化个人页面徽章渲染性能
- 为 badges API 添加节流机制，避免频繁请求
- 优化图片缓存策略和字符串处理
- 移除调试日志并改进推送通知的认证检查

app/nutrition/records.tsx

@@ -5,6 +5,7 @@ import { NutritionRecordCard } from '@/components/NutritionRecordCard';
 import { HeaderBar } from '@/components/ui/HeaderBar';
 import { Colors } from '@/constants/Colors';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
+import { useAuthGuard } from '@/hooks/useAuthGuard';
 import { useColorScheme } from '@/hooks/useColorScheme';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import { DietRecord } from '@/services/dietRecords';
@@ -43,6 +44,8 @@ export default function NutritionRecordsScreen() {
   const colorTokens = Colors[theme];
   const dispatch = useAppDispatch();
 
+  const { isLoggedIn } = useAuthGuard()
+
   // 日期相关状态 - 使用与统计页面相同的日期逻辑
   const days = getMonthDaysZh();
   const [selectedIndex, setSelectedIndex] = useState(getTodayIndexInMonth());
@@ -90,7 +93,8 @@ export default function NutritionRecordsScreen() {
   // 页面聚焦时自动刷新数据
   useFocusEffect(
     useCallback(() => {
-      console.log('营养记录页面聚焦，刷新数据...');
+      if (!isLoggedIn) return;
+
       if (viewMode === 'daily') {
         dispatch(fetchDailyNutritionData(currentSelectedDate));
       } else {