后台完成修复，初始化项目

src/main/java/com/org/flashsalesystem/controller/TestController.java

@@ -0,0 +1,40 @@
+package com.org.flashsalesystem.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 测试控制器
+ * 用于验证应用程序是否正常启动
+ */
+@Tag(name = "系统测试", description = "系统健康检查和测试接口")
+@RestController
+@RequestMapping("/test")
+public class TestController {
+
+    @Operation(summary = "系统问候", description = "测试系统是否正常运行")
+    @GetMapping("/hello")
+    public Map<String, Object> hello() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("message", "Hello! 秒杀系统运行正常");
+        response.put("status", "success");
+        response.put("timestamp", System.currentTimeMillis());
+        return response;
+    }
+
+    @Operation(summary = "健康检查", description = "检查系统健康状态")
+    @GetMapping("/health")
+    public Map<String, Object> health() {
+        Map<String, Object> response = new HashMap<>();
+        response.put("status", "UP");
+        response.put("application", "FlashSaleSystem");
+        response.put("version", "1.0.0");
+        return response;
+    }
+}