First commit of golang CLI.

wild-cli/cmd/wild/cluster/cluster.go

@@ -0,0 +1,29 @@
+package cluster
+
+import (
+	"github.com/spf13/cobra"
+)
+
+// NewClusterCommand creates the cluster command and its subcommands
+func NewClusterCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "cluster",
+		Short: "Manage Wild Cloud cluster",
+		Long: `Manage the Kubernetes cluster infrastructure.
+
+This includes node management, configuration generation, and service deployment.`,
+	}
+
+	// Add subcommands
+	cmd.AddCommand(
+		newConfigCommand(),
+		newNodesCommand(),
+		newServicesCommand(),
+	)
+
+	return cmd
+}
+
+// newConfigCommand is implemented in config.go
+// newNodesCommand is implemented in nodes.go
+// newServicesCommand is implemented in services.go