Alladin2025/One_Stop_Book ? reverse-engineered prompt

Build me a simple full stack app called One Stop Book.

I want a clean website where people can browse books, search for a title or author, view basic details, and see a simple list of results. Include a backend that serves the book data and a frontend that makes it easy to use on desktop and mobile. Keep the design polished but straightforward, with a homepage, a results page, and a book details view.

Please wire up basic testing too, including unit tests and a few end to end checks so I can see the main user flow works. If anything is unclear from the existing code, look up current docs online if you need to and then make sensible choices. Try to keep the project easy to run locally and make sure the app feels like a real product, not just a demo.