Полный рефакторинг api. Вынесено отдельно api passport

YandexMusic.API/Requests/Passport/YCheckSessionBuilder.cs

@@ -0,0 +1,19 @@
+using System.Net;
+using System.Net.Http.Json;
+using YandexMusic.API.Models.Passport;
+
+namespace YandexMusic.API.Requests.Passport;
+
+internal class YCheckSessionBuilder : YPassportRequestBuilder<YPassportSessionStatus?, object>
+{
+    public YCheckSessionBuilder(YandexMusicApi api) : base(api) { }
+
+    protected override string Method => WebRequestMethods.Http.Post;
+    protected override string PathTemplate => "pwl-yandex/api/passport/sessions/check_session";
+
+    protected override HttpContent? GetContent(object _)
+    {
+        var data = new { track_id = Api.Storage.AuthToken.TrackId };
+        return JsonContent.Create(data);
+    }
+}