refactor(home): redesign home screen with sort bar and add recommendation feed

- Replace PagerView-based tabs with modern sort bar navigation
- Add "推荐" (recommended) feed option with "hot" sort type
- Update tab icons and labels to match new sort paradigm
- Optimize PostCard, MessageBubble conditional styles

perf(chat): migrate FlatList to FlashList for emoji/sticker panels

- Improve virtualized rendering performance for emoji and sticker grids
- Fix jump-to-latest scroll behavior for inverted FlashList

perf(profile): extract user header and tab bar into separate memoized renders

- Prevent unnecessary re-renders when switching tabs

feat(api): add channel_id filter support for post queries

- Include channel_id in cursor pagination requests
- Update CursorPaginationRequest type definition

style(chat-info): redesign group and private chat info screens with flat layout

- Remove card borders and shadows for cleaner appearance
- Adjust avatar sizes and spacing for consistency

src/components/business/PostCard/PostCard.tsx

@@ -605,7 +605,7 @@ const PostCardInner: React.FC<PostCardProps> = (normalizedProps) => {
               size={14}
               color={post.is_liked ? colors.primary.main : colors.text.secondary}
             />
-            <Text style={[styles.gridLikeCount, post.is_liked && { color: colors.primary.main }]}>
+            <Text style={[styles.gridLikeCount, post.is_liked ? { color: colors.primary.main } : {}]}>
               {formatNumber(post.likes_count || 0)}
             </Text>
           </View>