Remove unused `any_docker_mcp()` function, add `#[allow(unused_imports)]` and `#[allow(dead_code)]` annotations to suppress false-positive warnings. Update README.md and HOW-TO-USE.md with Ollama and LiteLLM auth backend documentation including best-effort compatibility notices. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>