Add server api definition

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

@@ -0,0 +1,14 @@
+namespace MusicCast.Net.Api.Server.Models;
+
+public class GetStreamingServiceSettingsResponse
+{
+    public int response_code { get; set; }
+    public Services[] services { get; set; }
+
+    public class Services
+    {
+        public string input { get; set; }
+        public bool confirmed { get; set; }
+        public bool use_service { get; set; }
+    }
+}