chore: stop ignoring src/tui

The entry dates from an abandoned prototype (0.1427) and would have kept the
real TUI modules untracked while `git status` stayed silent about it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.gitignore

@@ -93,8 +93,6 @@ packages/gesture-control/.vite/
 # Claude Code plan tracking
 plan.json
 
-# Unfinished TUI (local development only)
-src/tui/
 .claude/
 media-assets/
 commands