Nitish0399/dockerapp ? reverse-engineered prompt

Build me a simple Dockerized full stack demo with a Node.js backend and a React frontend, wired together with docker compose so I can start everything with one command.

I want the web app to open in the browser on port 3000, and the server to run on port 5000 with a basic endpoint the frontend can call, like a simple hello message or status check. Make sure both parts work cleanly in containers, and set it up so I can build and run the whole thing locally without extra manual steps.

Please include the docker files and compose setup needed for both services, and make the project easy to start and stop. If anything needs current docs or best practices for the container setup, look them up online first.