sitesbelameira/mern_biblioteca_bela ? reverse-engineered prompt

Build me a simple library management app for a place called Biblioteca Bela.

I want it to let staff keep track of books, members, and loans in a clean easy way. The main flow should be adding books, listing what is available, marking books as borrowed or returned, and seeing who currently has each item. If it makes sense, include a basic search so people can find books by title, author, or ISBN.

Make the interface straightforward and friendly, with a home page, a books area, and a lending area. Use a modern full stack setup and keep the backend ready for storing the data in a database. I’d also like basic create, read, update, and delete actions where they fit.

Please set up the project so it runs cleanly from the root, and if you need anything from current docs or best practices, look it up online first.