auth

Register an AI-provider API key on a VPS running bento, via SSH, and propagate it to every BENTO_MANAGED stack. Drives bento-auth (Anthropic, OpenAI, OpenRouter, z.ai, Gemini, and any OpenAI-compatible endpoint). Use when the user says "add my OpenAI key", "register an Anthropic key", "set up provider auth on my bento server". NOTE: subscriptions (Claude Pro/Max, ChatGPT Plus) are OUT OF SCOPE — those use each app's native sign-in.