feat(cluster): update K8s cluster form for new k8s_options API

Align the Kubernetes cluster create/edit page with the backend's
promotion of operator/K8s knobs out of worker_config and the removal
of gpuVendorOverrides.

- k8s_options: drop gpuVendorOverrides; add operatorImage, namespace,
  and gpuInstanceOptions (presence = GPU instances enabled, carrying an
  optional gpuInstancesAccessStaticAddress).
- Add a top-level system_default_container_registry to the cluster type
  (promoted out of worker_config on the backend).
- Group all k8s_options fields into a new top-level "K8s Deployment
  Options" collapsible section (sibling of Advanced, rendered above it),
  with namespace first followed by volume mounts, image credentials,
  node selector, operator image, and GPU instances.
- Drive the GPU instances toggle from local state instead of
  Form.useWatch (an unregistered nested path never re-rendered, leaving
  the switch unresponsive); use antd's borderless Switch and keep the
  label/switch grouped together. Namespace gains a gpustack-system
  placeholder.
- Remove the gpuVendorOverrides validation from the form and the stale
  operator_image / namespace / gpu_instances_access_static_address hints
  from the worker_config YAML template and JSON schema.
- Add-worker GPU picker: always allow multi-select for K8s clusters
  (runtime node selectors are now auto-derived), dropping the
  override-gating, cluster fetch, and single-only hint.
- Update locales (en/zh/ja/ru/tr) for the removed and added keys.

src/pages/cluster-management/config/types.ts

@@ -74,17 +74,31 @@ export interface ImageCredential {
   password: string;
 }
 
+export interface GpuInstanceOptions {
+  // The mere presence of `gpuInstanceOptions` on `k8s_options` signals
+  // "GPU instances enabled" for the cluster — absence opts the cluster out,
+  // so there's no separate boolean flag on the wire.
+  gpuInstancesAccessStaticAddress?: string | null;
+}
+
 export interface K8sOptions {
   // Backend serializes K8sOptions with camelCase aliases (by_alias=True on
   // the SQL JSON column). The top-level `k8s_options` field on the cluster
   // stays snake_case, but everything inside follows the backend wire shape.
   volumeMounts?: VolumeMount[];
   imageCredentials?: ImageCredential[];
+  // Base nodeSelector applied to every worker DaemonSet; each per-runtime
+  // DaemonSet additionally gets a vendor PCI-presence label merged on top at
+  // render time, so per-vendor overrides are no longer configured here.
   nodeSelector?: Record<string, string>;
-  gpuVendorOverrides?: Record<
-    string,
-    { nodeSelector?: Record<string, string> }
-  >;
+  // Override for the gpustack-operator container image. Falls back to the
+  // server's default when unset.
+  operatorImage?: string | null;
+  // GPU-instance support knobs; presence enables GPU instance handling.
+  gpuInstanceOptions?: GpuInstanceOptions;
+  // Kubernetes namespace the cluster's manifests render into. Falls back to
+  // `gpustack-system` at render time when unset.
+  namespace?: string | null;
 }
 
 export interface ClusterListItem {
@@ -93,6 +107,10 @@ export interface ClusterListItem {
   is_default: boolean;
   description: string;
   worker_config: Record<string, any>;
+  // Per-cluster default container registry, promoted out of worker_config to
+  // a top-level column on the backend (image resolution / registration token
+  // read it directly). Falls back to the server default when unset.
+  system_default_container_registry?: string | null;
   provider: ProviderType;
   credential_id: number;
   created_at: string;
@@ -122,6 +140,7 @@ export interface ClusterFormData {
   region: string;
   server_url?: string;
   worker_config?: Record<string, any>;
+  system_default_container_registry?: string | null;
   worker_pools?: NodePoolFormData[];
   k8s_options?: K8sOptions;
 }

src/pages/cluster-management/config/worker-config.kubernetes.json

@@ -26,15 +26,6 @@
       "type": "string",
       "description": "Container image repository"
     },
-    "operator_image": {
-      "type": "string",
-      "description": "GPUStack operator image, format: <repo>:<tag>",
-      "examples": ["gpustack/gpustack-operator:<related version>"]
-    },
-    "gpu_instances_access_static_address": {
-      "type": "string",
-      "description": "Static address used to access GPU instances"
-    },
     "gateway_mode": {
       "type": "string",
       "description": "Gateway mode",
@@ -53,10 +44,6 @@
       "type": "string",
       "description": "Service discovery name"
     },
-    "namespace": {
-      "type": "string",
-      "description": "Kubernetes namespace"
-    },
     "huggingface_token": {
       "type": "string",
       "description": "Hugging Face access token"

src/pages/cluster-management/config/yaml-template.ts

@@ -56,16 +56,10 @@ export const kubernetesConfig = `# This is a template for worker_config.
 # system_default_container_registry: "docker.io"
 # image_name_override: "gpustack/gpustack:dev"
 # image_repo: "gpustack/gpustack"
-# operator_image: "gpustack/gpustack-operator:<related version>
 
-# ========= GPU instances ===========
- 
-# gpu_instances_access_static_address: <ip or dns name>
- 
 # ========= service & networking ===========
- 
+
 # service_discovery_name: "worker"
-# namespace: "gpustack-system"
 # worker_port: 10150
 # worker_metrics_port: 10150
 # service_port_range: "40000-40063"