New features: - FocusedThreadScreen for viewing deep comment threads - "Read X more replies" link at maxDepth navigates to focused view - Ancestors shown flat above anchor, replies threaded below - Auto-scroll to anchor comment on open Performance & code quality: - Fix O(n²) descendant counting - only compute when needed at maxDepth - Extract threading colors to shared kThreadingColors constant - Remove unused Consumer<VoteProvider> wrapper - Extract StatusBarOverlay reusable widget Tests: - Add unit tests for countDescendants - Add widget tests for CommentThread max-depth behavior - Add widget tests for FocusedThreadScreen rendering 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>