krraks72/gym ? reverse-engineered prompt

Build me a simple gym management web app for a small gym, with a clean admin area and basic login so the staff can manage the day to day work from the browser.

I want it to be easy to run locally with Docker, and also work on XAMPP or cPanel like the README says. Please make sure the app starts cleanly, the database can be set up and migrated, and the default admin account works so I can sign in and explore it right away.

Focus on making the project feel finished and usable, with the pages, forms, routing, and database wiring all working together. If anything in the current setup is outdated or broken, fix it and keep the install process simple. Use current docs online if you need to check anything.