lorenz08240/BUILDLAB_SIA — reverse-engineered prompt

Build me a working version of this project called BUILDLAB SIA. The repo only has a basic name and separate frontend and backend folders, so keep the first version simple and usable instead of guessing a huge product.

I want the app to open in the browser, show a clean home page with the BUILDLAB SIA name, and prove that the frontend is connected to the backend with a real API call. Add a simple dashboard style page with placeholder cards and sample data so I can see how the app will grow later. Make sure the backend has a basic health route and a sample data route, and make the frontend handle loading and error states nicely.

Please set up everything needed to run it locally, clean up any broken or missing setup, and add clear instructions in the README for installing, starting the frontend, and starting the backend. Look up current docs online if you need to.