feat: watch playlists and download newly added tracks

cmd/watch.go

@@ -0,0 +1,14 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var watchCmd = &cobra.Command{
+	Use:   "watch",
+	Short: "Watch playlists and auto-download new tracks",
+}
+
+func init() {
+	RootCmd.AddCommand(watchCmd)
+}