feat: 完善个人中心与小组件功能，优化 Onboarding 交互与手势体验

client/app/_layout.tsx

@@ -3,12 +3,22 @@ import { DarkTheme, DefaultTheme, ThemeProvider } from '@react-navigation/native
 import { useFonts } from 'expo-font';
 import { Stack } from 'expo-router';
 import * as SplashScreen from 'expo-splash-screen';
+import * as Notifications from 'expo-notifications';
 import { useEffect, useState } from 'react';
 import 'react-native-reanimated';
 
 import { useColorScheme } from '@/components/useColorScheme';
 import { initI18n } from '@/src/i18n';
 
+// 配置通知处理方式（即使不发送也建议配置，以确保权限接口正常）
+Notifications.setNotificationHandler({
+  handleNotification: async () => ({
+    shouldShowAlert: true,
+    shouldPlaySound: false,
+    shouldSetBadge: false,
+  }),
+});
+
 export {
   // Catch any errors thrown by the Layout component.
   ErrorBoundary,