mikemajesty/nestjs-monorepo ? reverse-engineered prompt

Build me a NestJS monorepo starter that feels ready to run from day one.

I want two apps, one for auth and one sample API like cats, with shared libraries for common stuff like database access, token auth, logging, and HTTP helpers. It should use MongoDB and Redis, include authentication, Swagger docs, and a clean structure that separates adapters, services, repositories, and entities so features are easy to grow without everything getting tangled.

Please wire it up so it runs locally with Docker Compose, and make sure there’s a good developer setup with tests for both unit and end to end cases. I also want the basics already in place for health checks, error handling, secrets, observability, and logging, so this can be used as a real boilerplate and not just a demo. If you need to check current docs or best practices while building it, go ahead and look them up.