feat: K8s集群拓扑图接入真实后端数据 — 分层可视化Cluster→Ingress→Service→Deployment→Node + http.ts类型修复

frontend/src/services/http.ts

@@ -63,7 +63,8 @@ async function request<T = any>(
     throw new Error(json.message || '请求失败');
   }
 
-  return json.data;
+  // Return json.data for standard responses, or full json for non-standard ones
+  return (json.data !== undefined ? json.data : json) as T;
 }
 
 // 导出便捷方法