ankit-kr-maurya-82/SpringBoot ? reverse-engineered prompt

Build me a simple Spring Boot Java app with Maven that starts up cleanly and gives me a solid backend foundation I can extend later.

I want the usual project setup, a working main application class, and at least one simple REST endpoint so I can confirm everything is running. Please keep it clean and easy to understand, with the basic layers separated in a sensible way, like controller, service, and any model or response class you think fits.

Make sure it runs with the Maven wrapper in this repo and includes whatever minimal config is needed for a smooth local start. If you need to check the current Spring Boot docs online, feel free to do that.