Day 1 - Restart Coding | Built a REST API Project using Spring Boot Fundamentals

For months, my coding routine looked like this: Learn → Lose consistency → Stop → Restart again. So today I decided to restart properly — and document everything I build in public. This is Day 1. Progress I built a simple REST API using Spring Boot to refresh my backend fundamentals. Instead of jumping into complex projects, I wanted to rebuild the basics properly. Concepts @RestController @RequestMapping Dependency Injection Basic service layer structure MVC archite