feat(APKUpdate): implement APK update check and enhance build workflow

- Added `expo-intent-launcher` dependency to support APK launching functionality.
- Introduced `APKUpdateBootstrap` component to check for APK updates during app initialization.
- Enhanced build workflow in `build.yml` to resolve runtime version and upload APK to the updates server.
- Updated `HomeScreen` and `TabsLayout` to manage tab visibility and scroll behavior based on user interactions.
- Refactored message bubble styles for improved UI consistency and user experience.

src/screens/home/HomeScreen.tsx

@@ -26,7 +26,7 @@ import { MaterialCommunityIcons } from '@expo/vector-icons';
 import { Gesture, GestureDetector } from 'react-native-gesture-handler';
 import { useAppColors, useResolvedColorScheme, spacing, borderRadius, shadows, type AppColors } from '../../theme';
 import { Post } from '../../types';
-import { useUserStore, useHomeTabBarVisibilityStore } from '../../stores';
+import { useUserStore, useHomeTabBarVisibilityStore, useHomeTabPressStore } from '../../stores';
 import { useCurrentUser } from '../../stores/authStore';
 import { channelService, postService } from '../../services';
 import { PostCard, TabBar, SearchBar } from '../../components/business';
@@ -212,9 +212,14 @@ export const HomeScreen: React.FC = () => {
 
   const setBottomTabBarHiddenByScroll = useHomeTabBarVisibilityStore((s) => s.setBottomTabBarHiddenByScroll);
   const bottomTabBarHiddenByScroll = useHomeTabBarVisibilityStore((s) => s.bottomTabBarHiddenByScroll);
+  const homeTabPressCount = useHomeTabPressStore((s) => s.pressCount);
   const homeListScrollYRef = useRef(0);
   const tabBarIdleRestoreTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
 
+  // FlatList 和 ScrollView 的 ref，用于滚动到顶部
+  const flatListRef = useRef<FlatList<Post> | null>(null);
+  const scrollViewRef = useRef<ScrollView | null>(null);
+
   const clearTabBarIdleRestoreTimer = useCallback(() => {
     if (tabBarIdleRestoreTimerRef.current != null) {
       clearTimeout(tabBarIdleRestoreTimerRef.current);
@@ -269,6 +274,19 @@ export const HomeScreen: React.FC = () => {
     }
   }, [showSearch, clearTabBarIdleRestoreTimer, setBottomTabBarHiddenByScroll]);
 
+  // 监听首页 Tab 点击事件，滚动到顶部
+  useEffect(() => {
+    if (homeTabPressCount > 0) {
+      // 滚动 FlatList 到顶部
+      flatListRef.current?.scrollToOffset({ offset: 0, animated: true });
+      // 滚动 ScrollView 到顶部（网格模式）
+      scrollViewRef.current?.scrollTo({ y: 0, animated: true });
+      // 重置底部 Tab 栏状态
+      setBottomTabBarHiddenByScroll(false);
+      homeListScrollYRef.current = 0;
+    }
+  }, [homeTabPressCount, setBottomTabBarHiddenByScroll]);
+
   /** 横向胶囊条滚动位置：切换频道刷新列表时不重置 */
   const capsuleHScrollRef = useRef<ScrollView | null>(null);
   const capsuleScrollXRef = useRef(0);
@@ -819,6 +837,7 @@ export const HomeScreen: React.FC = () => {
       // 移动端使用瀑布流布局（2列）
       return (
         <ScrollView
+          ref={scrollViewRef}
           style={styles.waterfallScroll}
           contentContainerStyle={[
             styles.waterfallContainer,
@@ -899,6 +918,7 @@ export const HomeScreen: React.FC = () => {
     // 移动端和宽屏都使用单列 FlatList，宽屏下居中显示
     return (
       <FlatList
+        ref={flatListRef}
         data={displayPosts}
         renderItem={renderPostList}
         keyExtractor={keyExtractor}