refactor: replace explicit fields with tag-based property system

cmd/show.go

@@ -10,21 +10,18 @@ import (
 )
 
 var showCmd = &cobra.Command{
-	Use:   "show <id>",
-	Short: "Show node details",
-	Args:  cobra.ExactArgs(1),
+	Use: "show <id>", Short: "Show node details", Args: cobra.ExactArgs(1),
 	Run: func(cmd *cobra.Command, args []string) {
 		d, err := db.GetDB()
 		if err != nil {
 			fmt.Fprintln(os.Stderr, err)
 			return
 		}
-		n, err := d.NodeByID(args[0])
-		if err != nil {
+		if n, err := d.NodeByID(args[0]); err == nil {
+			output.PrintNode(cmd.OutOrStdout(), n, jsonFlag)
+		} else {
 			fmt.Fprintln(os.Stderr, "node not found:", args[0])
-			return
 		}
-		output.PrintNode(cmd.OutOrStdout(), n, jsonFlag)
 	},
 }