Codex app

# Codex app ### New features - Added a Worktrees setting to turn automatic cleanup of Codex-managed worktrees on or off. - Added Handoff support for moving a thread between Local and [Worktree](/codex/environments/git-worktrees). - Added an explicit English option in the language menu. ### Performance improvements and bug fixes - Improved GitHub and pull request workflows. - Improved approval prompts and app connection sign-in flows. - Additional performance improvements and bug fixes.