Add server api definition

MusicCast.Net.Api.Server/Models/GetTagResponse.cs

@@ -0,0 +1,20 @@
+namespace MusicCast.Net.Api.Server.Models;
+
+public class GetTagResponse
+{
+    public int response_code { get; set; }
+    public Zone_list[] zone_list { get; set; }
+    public Input_list[] input_list { get; set; }
+
+    public class Zone_list
+    {
+        public string id { get; set; }
+        public int tag { get; set; }
+    }
+
+    public class Input_list
+    {
+        public string id { get; set; }
+        public int tag { get; set; }
+    }
+}