[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;
            });
        }
    }