Adds 15 commands ported from npm src/commands/: /output-style,
/release-notes, /feedback (alias /bug), /upgrade, /stickers,
/mobile (aliases /ios, /android), /desktop (alias /app),
/install-github-app, /install-slack-app, /privacy-settings,
/extra-usage, /passes, /rate-limit-options, /chrome, and
/reload-plugins. Browser launches honor CI / CLAUDE_CODE_NO_BROWSER
and fall back to a printed link when a browser is unavailable.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>