v0.46.0: Session rename, cloud sync, and bug fixes

New features

- /create-skill command - Create custom skills directly from the CLI with guided flow
- Skills in exec mode - Skill tool now enabled when running droid exec
- /rename command - Rename sessions with a new slash command, plus auto-generated session names based on conversation content

Improvements

- PR overview in FetchUrl - GitHub PR fetch results now include an overview section with files changed, comment counts, and table of contents
- Create-skill UX - Improved create-skill flow with better guidance and examples
- Review branch fetch - Git review now fetches current branch when opening instead of on mount

Bug fixes

- Background process output - Output from background processes now properly piped to droid
- Cloud sync settings - Fixed settings cloud sync with droid status tracking
- ESC cancel duplication - Fixed queued messages being duplicated when pressing ESC to cancel