[Bug - Sagiri] SagiriService - StartAsync() で例外がキャッチできない

[Asteriskx]

• Task.Run() な中で例外処理してしまっているので、取得できていないと思われる
  https://github.com/Sagiri-Dev/Sagiri/blob/feature-plus-soundcloud/Sagiri/Services/Spotify/SpotifyService.cs#L85-L108

• どうするか？
  一度 Task として受けた後、try - catch 内で待ち合わせて例外処理する

      var pollingTask = Task.Run(() =>
      {
          var observer = Observable.Interval(TimeSpan.FromSeconds(1))
              .Select(async _ => _CurrentlyPlaying = await _spotifyClient?.Player?.GetCurrentlyPlaying(new()))
              .Select(track => CurrentTrackInfo.GetCurrentTrackInfo(_CurrentlyPlaying))
              .Distinct()
              .Where(track => track is not null)
              .Subscribe(track => _CurrentTrackChanged?.Invoke(track));

          if (ct.IsCancellationRequested)
          {
              observer.Dispose();
              _CurrentTrackErrorDetected.Invoke();
          }

          _Logger.WriteLog("[SpotifyService] - Polling Start....", Logger.LogLevel.Debug);
      }, ct);

      try
      {
          await pollingTask;
      }
      catch (Exception ex)
      {
          if (pollingTask.Exception is AggregateException agex)
          {
              agex.Handle((exp) =>
              {
                  agex.InnerExceptions.ToList().ForEach((ages) => {
                      _Logger.WriteLog($"[SpotifyService] - Polling error... {ages.Message}", Logger.LogLevel.Error);
                  });

                  // If you set it to true, the exception will not be thrown again because it has already been handled.
                  // Or else, the exception will be re-throw as it is still unhandled.
                  return false;
              });
          }
      }