Help me configure the installed Claude Code CLI for MandAPI. Check the installed version and existing configuration before editing, and preserve my current permissions and unrelated settings. Use ANTHROPIC_BASE_URL=https://api.mandapi.com and a MandAPI key supplied privately through ANTHROPIC_AUTH_TOKEN. Never display, commit or hard-code the key. Ask me for the exact account-visible MODEL_ID if it is not configured; do not invent a model ID or assume every model supports tools. Start with session-scoped settings. Show how to inspect /status and run one short read-only README summary when the key is available. Report the configuration changed and how to restore the previous connection. Do not buy credits, deploy a service or disable permission prompts.