feat: 集成 Redux 状态管理和用户目标管理功能

- 添加 Redux 状态管理，支持用户登录和个人信息的持久化
- 新增目标管理页面，允许用户设置每日卡路里和步数目标
- 更新首页，移除旧的活动展示，改为固定的热点功能卡片
- 修改布局以适应新功能的展示和交互
- 更新依赖，添加 @reduxjs/toolkit 和 react-redux 库以支持状态管理
- 新增 API 服务模块，处理与后端的交互

app/_layout.tsx

@@ -4,7 +4,20 @@ import { Stack } from 'expo-router';
 import { StatusBar } from 'expo-status-bar';
 import 'react-native-reanimated';
 
+import { useAppDispatch } from '@/hooks/redux';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { store } from '@/store';
+import { rehydrateUser } from '@/store/userSlice';
+import React from 'react';
+import { Provider } from 'react-redux';
+
+function Bootstrapper({ children }: { children: React.ReactNode }) {
+  const dispatch = useAppDispatch();
+  React.useEffect(() => {
+    dispatch(rehydrateUser());
+  }, [dispatch]);
+  return <>{children}</>;
+}
 
 export default function RootLayout() {
   const colorScheme = useColorScheme();
@@ -18,18 +31,23 @@ export default function RootLayout() {
   }
 
   return (
-    <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
-      <Stack screenOptions={{ headerShown: false }}>
-        <Stack.Screen name="onboarding" />
-        <Stack.Screen name="(tabs)" />
-        <Stack.Screen name="profile/edit" />
-        <Stack.Screen name="ai-posture-assessment" />
-        <Stack.Screen name="auth/login" options={{ headerShown: false }} />
-        <Stack.Screen name="legal/user-agreement" options={{ headerShown: true, title: '用户协议' }} />
-        <Stack.Screen name="legal/privacy-policy" options={{ headerShown: true, title: '隐私政策' }} />
-        <Stack.Screen name="+not-found" />
-      </Stack>
-      <StatusBar style="auto" />
-    </ThemeProvider>
+    <Provider store={store}>
+      <Bootstrapper>
+        <ThemeProvider value={colorScheme === 'dark' ? DarkTheme : DefaultTheme}>
+          <Stack screenOptions={{ headerShown: false }}>
+            <Stack.Screen name="onboarding" />
+            <Stack.Screen name="(tabs)" />
+            <Stack.Screen name="profile/edit" />
+            <Stack.Screen name="profile/goals" options={{ headerShown: false }} />
+            <Stack.Screen name="ai-posture-assessment" />
+            <Stack.Screen name="auth/login" options={{ headerShown: false }} />
+            <Stack.Screen name="legal/user-agreement" options={{ headerShown: true, title: '用户协议' }} />
+            <Stack.Screen name="legal/privacy-policy" options={{ headerShown: true, title: '隐私政策' }} />
+            <Stack.Screen name="+not-found" />
+          </Stack>
+          <StatusBar style="auto" />
+        </ThemeProvider>
+      </Bootstrapper>
+    </Provider>
   );
 }