refactor(navigation): replace direct navigation with navigation service

Replace direct `navigation.navigate()` and `navigation.getParent()?.navigate()` calls with centralized `navigationService.navigate()` across multiple screens. Convert screen component functions from JSX elements to array-returning functions in RootNavigator to fix React key warnings and improve render consistency.

- HomeScreen: use navigationService for post and user navigation
- PrivateChatInfoScreen: use navigationService for profile navigation
- ChatScreen: use navigationService for avatar press and user profile navigation
- RootNavigator: convert PublicScreens and AuthenticatedScreens to getPublicScreens() and getAuthenticatedScreens() functions returning arrays with proper keys

src/navigation/RootNavigator.tsx

@@ -41,10 +41,10 @@ interface RootNavigatorProps {
   isInitializing: boolean;
 }
 
-// 未认证时可访问的屏幕
-const PublicScreens = () => (
-  <>
+// 未认证时可访问的屏幕 - 返回数组而不是 JSX
+const getPublicScreens = () => [
   <RootStack.Screen
+    key="PostDetail"
     name="PostDetail"
     component={PostDetailScreen}
     options={{
@@ -54,8 +54,9 @@ const PublicScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="UserProfile"
     name="UserProfile"
     component={UserScreen}
     options={{
@@ -64,14 +65,13 @@ const PublicScreens = () => (
       headerStyle: { backgroundColor: colors.background.paper },
       headerTintColor: colors.text.primary,
     }}
-    />
-  </>
-);
+  />,
+];
 
-// 认证后可访问的屏幕
-const AuthenticatedScreens = () => (
-  <>
+// 认证后可访问的屏幕 - 返回数组而不是 JSX
+const getAuthenticatedScreens = () => [
   <RootStack.Screen
+    key="PostDetail"
     name="PostDetail"
     component={PostDetailScreen}
     options={{
@@ -81,8 +81,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="UserProfile"
     name="UserProfile"
     component={UserScreen}
     options={{
@@ -91,8 +92,9 @@ const AuthenticatedScreens = () => (
       headerStyle: { backgroundColor: colors.background.paper },
       headerTintColor: colors.text.primary,
     }}
-    />
+  />,
   <RootStack.Screen
+    key="CreatePost"
     name="CreatePost"
     component={CreatePostScreen}
     options={{
@@ -102,16 +104,18 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       presentation: 'modal',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="Chat"
     name="Chat"
     component={ChatScreen}
     options={{
       headerShown: false,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="FollowList"
     name="FollowList"
     component={FollowListScreen}
     options={{
@@ -121,8 +125,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="CreateGroup"
     name="CreateGroup"
     component={CreateGroupScreen}
     options={{
@@ -132,8 +137,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       presentation: 'modal',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="JoinGroup"
     name="JoinGroup"
     component={JoinGroupScreen}
     options={{
@@ -143,8 +149,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="GroupInfo"
     name="GroupInfo"
     component={GroupInfoScreen}
     options={{
@@ -154,8 +161,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="GroupMembers"
     name="GroupMembers"
     component={GroupMembersScreen}
     options={{
@@ -165,8 +173,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="GroupRequestDetail"
     name="GroupRequestDetail"
     component={GroupRequestDetailScreen}
     options={{
@@ -176,8 +185,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="GroupInviteDetail"
     name="GroupInviteDetail"
     component={GroupInviteDetailScreen}
     options={{
@@ -187,8 +197,9 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
+  />,
   <RootStack.Screen
+    key="PrivateChatInfo"
     name="PrivateChatInfo"
     component={PrivateChatInfoScreen}
     options={{
@@ -198,9 +209,8 @@ const AuthenticatedScreens = () => (
       headerTintColor: colors.text.primary,
       animation: 'slide_from_right',
     }}
-    />
-  </>
-);
+  />,
+];
 
 export function RootNavigator({ isAuthenticated, isInitializing }: RootNavigatorProps) {
   const { isMobile } = useResponsive();
@@ -238,7 +248,7 @@ export function RootNavigator({ isAuthenticated, isInitializing }: RootNavigator
                 )
               }
             </RootStack.Screen>
-            <AuthenticatedScreens />
+            {getAuthenticatedScreens()}
           </>
         ) : (
           <>
@@ -247,7 +257,7 @@ export function RootNavigator({ isAuthenticated, isInitializing }: RootNavigator
               component={AuthNavigator}
               options={{ headerShown: false }}
             />
-            <PublicScreens />
+            {getPublicScreens()}
           </>
         )}
       </RootStack.Navigator>

src/screens/home/HomeScreen.tsx

@@ -35,6 +35,7 @@ import { HomeStackParamList, RootStackParamList } from '../../navigation/types';
 import { useResponsive, useResponsiveSpacing } from '../../hooks/useResponsive';
 import { SearchScreen } from './SearchScreen';
 import { CreatePostScreen } from '../create/CreatePostScreen';
+import { navigationService } from '../../infrastructure/navigation/navigationService';
 
 type NavigationProp = NativeStackNavigationProp<HomeStackParamList, 'Home'> & NativeStackNavigationProp<RootStackParamList>;
 
@@ -343,12 +344,12 @@ export const HomeScreen: React.FC = () => {
 
   // 跳转到帖子详情
   const handlePostPress = (postId: string, scrollToComments: boolean = false) => {
-    navigation.getParent()?.navigate('PostDetail', { postId, scrollToComments });
+    navigationService.navigate('PostDetail', { postId, scrollToComments });
   };
 
   // 跳转到用户主页
   const handleUserPress = (userId: string) => {
-    navigation.getParent()?.navigate('UserProfile', { userId });
+    navigationService.navigate('UserProfile', { userId });
   };
 
   // 点赞帖子

src/screens/message/PrivateChatInfoScreen.tsx

@@ -31,6 +31,7 @@ import { userManager } from '../../stores/userManager';
 import { Avatar, Text, Button, Loading, Divider } from '../../components/common';
 import { User } from '../../types';
 import { RootStackParamList, MessageStackParamList } from '../../navigation/types';
+import { navigationService } from '../../infrastructure/navigation/navigationService';
 
 type NavigationProp = NativeStackNavigationProp<MessageStackParamList>;
 type PrivateChatInfoRouteProp = RouteProp<MessageStackParamList, 'PrivateChatInfo'>;
@@ -149,9 +150,8 @@ const PrivateChatInfoScreen: React.FC = () => {
 
   // 查看用户资料
   const handleViewProfile = () => {
-    // 使用根导航跳转到用户资料页面
-    const rootNavigation = navigation.getParent();
-    rootNavigation?.navigate('UserProfile' as any, { userId });
+    // 使用导航服务跳转到用户资料页面
+    navigationService.navigate('UserProfile', { userId });
   };
 
   // 举报/投诉

src/screens/message/components/ChatScreen/useChatScreen.ts

@@ -31,6 +31,7 @@ import { groupService } from '../../../../services/groupService';
 import { userManager } from '../../../../stores/userManager';
 import { groupManager } from '../../../../stores/groupManager';
 import { RootStackParamList } from '../../../../navigation/types';
+import { navigationService } from '../../../../infrastructure/navigation/navigationService';
 import {
   GroupMessage,
   PanelType,
@@ -1039,9 +1040,9 @@ export const useChatScreen = () => {
   // 点击头像跳转到用户主页
   const handleAvatarPress = useCallback((userId: string) => {
     if (userId && userId !== currentUserId) {
-      navigation.navigate('UserProfile' as any, { userId: String(userId) });
+      navigationService.navigate('UserProfile', { userId: String(userId) });
     }
-  }, [navigation, currentUserId]);
+  }, [currentUserId]);
 
   // 长按头像@用户
   const handleAvatarLongPress = useCallback((senderId: string, nickname: string) => {
@@ -1113,8 +1114,7 @@ export const useChatScreen = () => {
         conversationId: conversationId || undefined,
       });
     } else if (otherUser?.id) {
-      const rootNavigation = navigation.getParent();
-      rootNavigation?.navigate('UserProfile' as any, { userId: String(otherUser.id) });
+      navigationService.navigate('UserProfile', { userId: String(otherUser.id) });
     }
   }, [navigation, isGroupChat, routeGroupId, otherUser]);