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/stores/post/sources.ts

@@ -62,6 +62,7 @@ export class NetworkCursorPostListPagedSource implements IPostListPagedSource {
       cursor: this.nextCursor ?? '',
       page_size: this.pageSize,
       post_type: this.tab,
+      channel_id: this.channelId,
     };
 
     const result = await postService.getPostsCursor(params);