feat(k8s): A1 K8s 双路由体系统一 — code 路由为主, ID 路由标记 deprecated

后端:
- 新增 4 条 all-NS code 路由: services/ingresses/cronjobs/nodes
- ListNodes 改用 getK8sClientByCode (兼容 ID+code)
- ID 域资源路由标记 // Deprecated

前端:
- clusterApi/nodeApi/workloadApi 资源方法迁移到 code 路由
- KubernetesClusterDetail/TopologyView/KubernetesNodes 组件从 cluster.id 迁移到 cluster.code
- 修复潜在 bug: ClusterOverviewPage 曾将 code 传给 ID-based getNodes

验证: 16/16 API 测试通过 (7 新 code 路由 + 3 旧 ID 兼容 + 6 回归)
go build=✅ tsc -b=✅ npm build=✅

frontend/src/components/kubernetes/KubernetesClusterDetail.tsx

@@ -67,15 +67,16 @@ export function KubernetesClusterDetail({ cluster, onClose }: { cluster?: JsonDa
     ];
   }, [clusterMetrics]);
 
-  const loadClusterDetail = async (clusterId: string) => {
+  const loadClusterDetail = async (clusterCode: string) => {
     try {
       // 后端 ListNodes/ListPods/etc 返回 data 直接为数组（非 {list,total}）
+      // 统一使用 Kuboard code 路由 (ROADMAP A1)
       const [nodesRes, podsRes, depRes, svcRes, ingRes] = await Promise.all([
-        kubernetesApi.getNodes(clusterId).catch(() => []),
-        kubernetesApi.getPods(clusterId).catch(() => []),
-        kubernetesApi.getDeployments(clusterId).catch(() => []),
-        kubernetesApi.getServices(clusterId).catch(() => []),
-        kubernetesApi.getIngresses(clusterId).catch(() => []),
+        kubernetesApi.getNodes(clusterCode).catch(() => []),
+        kubernetesApi.getPods(clusterCode).catch(() => []),
+        kubernetesApi.getDeployments(clusterCode).catch(() => []),
+        kubernetesApi.getServices(clusterCode).catch(() => []),
+        kubernetesApi.getIngresses(clusterCode).catch(() => []),
       ]);
       const toArray = (v: JsonData) => (Array.isArray(v) ? v : (v?.list || []));
       setNodes(toArray(nodesRes));
@@ -89,10 +90,10 @@ export function KubernetesClusterDetail({ cluster, onClose }: { cluster?: JsonDa
   };
 
   useEffect(() => {
-    if (cluster?.id) {
-      loadClusterDetail(cluster.id);
+    if (cluster?.code) {
+      loadClusterDetail(cluster.code);
     }
-  }, [cluster?.id]);
+  }, [cluster?.code]);
 
   return (
     <Card className="bg-slate-900 border-slate-800">