Test CI/CD 3 & fix healthcheck

dist/app.controller.d.ts

@@ -2,9 +2,5 @@ import { AppService } from './app.service';
 export declare class AppController {
     private readonly appService;
     constructor(appService: AppService);
-    getHealth(): {
-        status: string;
-        service: string;
-        timestamp: string;
-    };
+    getHealth(): string;
 }