feat(HeatlCheck) : 상태 및 업데이트 확인을 위한 컨트롤러를 추가한다 (#41)

wabi/src/main/kotlin/com/wap/wabi/common/HealthCheckController.kt

@@ -0,0 +1,12 @@
+package com.wap.wabi.common
+
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class HealthCheckController {
+    @GetMapping("/health")
+    fun healthCheck(): String {
+        return "2024-12-01 updated"
+    }
+}