feat: 新增日志中心、功能优化与代码重构

- 新增 log_datasource.go / log_proxy.go / user_api_token.go 后端控制器
- 新增 log_datasource.go model
- 新增 monitor/log-center.ts API 模块
- 新增 LogCenter 前端组件及页面
- 重构 deployment 相关组件 (HPDA/UpdateImageModal/bundle-yaml 等)
- 新增 ResetPasswordDialog / code-snippet-block / copy-button 等 UI 组件
- 重构多个 k8s 相关组件 (TopologyView/ResourceVisualEditor/PodFileBrowser 等)
- 更新多个 API 和工具函数 (auth.ts/monitor/index.ts/request.ts 等)
- 更新静态资源 (index.html + 新 JS/CSS bundle)
- 删除废弃静态资源文件

backend/controller/kubernetes.go

@@ -89,16 +89,24 @@ func (h *KubernetesHandler) getK8sClient(clusterID int) (*k8sclient.Client, *mod
 	if err := h.db.First(&cluster, clusterID).Error; err != nil {
 		return nil, nil, fmt.Errorf("cluster not found")
 	}
-	if cluster.KubeConfig == "" {
-		return nil, nil, fmt.Errorf("no kubeconfig")
-	}
-	client, err := k8sclient.NewClient(cluster.KubeConfig)
+	client, err := buildK8sClient(&cluster)
 	if err != nil {
 		return nil, nil, err
 	}
 	return client, &cluster, nil
 }
 
+// buildK8sClient 根据集群配置构造客户端，支持 kubeconfig 或 token+api_server // Logan.Li
+func buildK8sClient(cluster *model.KubernetesCluster) (*k8sclient.Client, error) {
+	if cluster.KubeConfig != "" {
+		return k8sclient.NewClient(cluster.KubeConfig)
+	}
+	if cluster.Token != "" && cluster.APIServer != "" {
+		return k8sclient.NewClientFromToken(cluster.APIServer, cluster.Token)
+	}
+	return nil, fmt.Errorf("no kubeconfig or token+api_server configured")
+}
+
 // ============================================================================
 // PVC (存储) handlers
 // ============================================================================