Branch selection; worktree creation; /goal support added

# ChatGPT for iOS ### New features - Added support for choosing a branch, creating a worktree, and running an environment setup script for new threads. - Added a Codex profile screen with usage stats and token activity charts. - Added `/goal` support for creating and managing goals from Codex Mobile. - Added inline review comments when viewing changed files. - Added support for asking in side chat from selected transcript text. - Added support for editing the latest sent prompt. ### Improvements and bug fixes - Improved attachment support on Windows hosts. - Skills and plugins now appear directly inline in the composer. - Improved side chat and queued prompt visibility while a thread is running. - Improved message styling, navigation, tool activity, Face ID behavior, archived-thread browsing, and thread UI polish.