feat: domain/storage/billing/config cmds + rainyun domain/storage/billing services

internal/cmd/billing.go

@@ -0,0 +1,33 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var billingCmd = &cobra.Command{
+	Use:   "billing",
+	Short: "Billing and orders",
+}
+
+var ordersCmd = &cobra.Command{
+	Use:   "orders",
+	Short: "List orders",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		svc := prov.Billing()
+		if svc == nil {
+			return fmt.Errorf("billing not supported by current provider")
+		}
+		orders, err := svc.Orders(cmd.Context())
+		if err != nil {
+			return err
+		}
+		return out.Print(orders)
+	},
+}
+
+func init() {
+	billingCmd.AddCommand(ordersCmd)
+	rootCmd.AddCommand(billingCmd)
+}