feat: add home timeline command

Add `bird home` command to fetch the authenticated user's home timeline.

- Supports "For You" feed (default) and "Following" feed (--latest)
- Uses HomeTimeline and HomeLatestTimeline GraphQL operations
- Includes count option (-n), JSON output, and pagination

Usage:
  bird home           # Get "For You" feed
  bird home --latest  # Get "Following" (chronological) feed
  bird home -n 50     # Fetch 50 tweets

src/lib/twitter-client-features.ts

@@ -226,6 +226,12 @@ export function buildListsFeatures(): Record<string, boolean> {
   });
 }
 
+export function buildHomeTimelineFeatures(): Record<string, boolean> {
+  return applyFeatureOverrides('homeTimeline', {
+    ...buildTimelineFeatures(),
+  });
+}
+
 export function buildFollowingFeatures(): Record<string, boolean> {
   return applyFeatureOverrides('following', {
     rweb_video_screen_enabled: true,