vivek143bhowmik-lang/mern-backend-gh-action ? reverse-engineered prompt

Build me the backend for a simple MERN style app in JavaScript.

I want a clean Node API with the usual setup for routes, controllers, middleware, and basic environment config. It should be ready to run locally, easy to deploy in Docker, and include the kind of scripts you would need for starting the server and managing production processes. If it makes sense, set up a simple GitHub Actions workflow so it can be checked and built automatically when changes are pushed.

Keep it practical and minimal, but make sure the project is organized, uses environment variables, and has everything needed to get it running without extra manual setup. If you need to look up current docs online for anything, go ahead.