Install an external skill into Nonnaclaw. Clones the skill's git repo into ../nonnaclaw-skills/, installs dependencies, reads the skill's own SKILL.md for auth/setup instructions, and restarts the service. Use when user says "install skill", "add skill", or provides a skill repo URL.
Run initial Nonnaclaw setup. Use when user wants to install dependencies, set up containers, configure Claude auth, or start the background service. Triggers on "setup", "configure nonnaclaw", or first-time setup requests. Channels (WhatsApp, Telegram, etc.) are added separately via /install.