add test page

src/main/kotlin/com/android/trisolarisserver/controller/Health.kt

@@ -0,0 +1,17 @@
+package com.android.trisolarisserver.controller
+
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class Health {
+    @GetMapping("/health")
+    fun health(): Map<String, String> {
+        return mapOf("status" to "ok")
+    }
+
+    @GetMapping("/")
+    fun root(): Map<String, String> {
+        return mapOf("status" to "ok")
+    }
+}