fix: 去掉demo

src/main/java/com/example/demo/controller/TestController.java

@@ -1,18 +0,0 @@
-package com.example.demo.controller;
-
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-/**
- * @Description
- * @Date 2026/4/28
- * @author xuliangchao
- */
-@RestController
-public class TestController {
-
-    @GetMapping("/getTest")
-    public String getTest() {
-        return "Spring Boot 项目启动成功";
-    }
-}