Remove YouTube integration from backend and deployment config

Drops the YouTube-backed second catalog source entirely: the
Local/External split on Track/Album collapses into single concrete
entities, Artist/TrackArtist/ExternalTrack/ExternalAlbum and the
YouTube service/download pipeline (yt-dlp, MassTransit consumer,
routing slip) are deleted, and mixes now source discovery only from
local listening history. Includes the RemoveYouTubeIntegration EF
Core migration and matching Worker/deploy/compose cleanup (no more
yt-dlp/python/deno in the Worker image, no thumbnail-cache/YtDlp
config sections).

backend/Core/Musify.Infrastructure/MassTransit/RoutingSlip/ActivityNames.cs

@@ -14,7 +14,6 @@ namespace Musify.Infrastructure.MassTransit.RoutingSlip
         internal const string GeneratePictureWorkflowPaths = "GeneratePictureWorkflowPaths";
 
         internal const string DownloadFile = "DownloadFile";
-        internal const string DownloadYouTubeAudio = "DownloadYouTubeAudio";
         internal const string DownloadThumbnail = "DownloadThumbnail";
 
         internal const string TranscodeAudio = "TranscodeAudio";

backend/Core/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/YouTubeTrackRoutingSlipBuilder.cs

@@ -1,166 +0,0 @@
-using MassTransit;
-using MassTransit.Courier.Contracts;
-using Musify.Application.Events;
-using Musify.Application.Shared;
-using Musify.Infrastructure.Configuration;
-using Musify.Infrastructure.MassTransit.Activities.Audio;
-using Musify.Infrastructure.MassTransit.Activities.Files;
-using Musify.Infrastructure.MassTransit.Activities.Pictures;
-using Musify.Infrastructure.MassTransit.Arguments;
-using Musify.Infrastructure.MassTransit.Consumers;
-
-namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
-{
-    public class YouTubeTrackRoutingSlipBuilder(WorkerConfiguration workerConfiguration)
-    {
-        public RoutingSlipBuilder BuildAudioWorkflow(DownloadYouTubeTrackEvent message, Guid? correlationId)
-        {
-            var routingSlipBuilder = new RoutingSlipBuilder(NewId.NextGuid());
-            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.CorrelationId, correlationId ?? Guid.Empty);
-
-            routingSlipBuilder.AddSubscription(
-                EndpointHelper.BuildConsumerUri(RoutingSlipCleanUpConsumer.QueueName),
-                RoutingSlipEvents.Completed | RoutingSlipEvents.Faulted);
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.GenerateAudioWorkflowPaths,
-                EndpointHelper.BuildExecuteActivityUri(GenerateAudioWorkflowPathsActivity.ExecuteEndpointName),
-                new GenerateAudioWorkflowPathsArguments(
-                    message.TrackId,
-                    workerConfiguration.Routes.TemporaryFilesDirectory,
-                    $"{message.VideoId}.m4a"));
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.DownloadYouTubeAudio,
-                EndpointHelper.BuildExecuteActivityUri(DownloadYouTubeAudioActivity.ExecuteEndpointName),
-                new DownloadYouTubeAudioArguments(
-                    message.TrackId,
-                    message.VideoId,
-                    RoutingSlipVariableNames.Audio.SourceFilePath));
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.TranscodeAudio,
-                EndpointHelper.BuildExecuteActivityUri(TranscodeAudioActivity.ExecuteEndpointName),
-                new TranscodeAudioArguments(
-                    message.TrackId,
-                    RoutingSlipVariableNames.Audio.SourceFilePath,
-                    RoutingSlipVariableNames.Workflow.TemporalDirectory));
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.TransferFiles,
-                EndpointHelper.BuildExecuteActivityUri(TransferFilesToBucketActivity.ExecuteEndpointName),
-                new TransferFilesToBucketArguments(
-                    message.Bucket,
-                    RoutingSlipVariableNames.Audio.TranscodedDirectory,
-                    message.AudioProcessedFolderKey));
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.UpdateTrackAudio,
-                EndpointHelper.BuildExecuteActivityUri(UpdateTrackAudioActivity.ExecuteEndpointName),
-                new UpdateTrackAudioArguments(
-                    message.TrackId,
-                    message.AudioProcessedFolderKey,
-                    RoutingSlipVariableNames.Audio.DurationSeconds));
-
-            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.SubjectId, message.TrackId);
-            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.ProcessKind, RoutingSlipVariableNames.ProcessKinds.TrackAudio);
-            routingSlipBuilder.AddSubscription(
-                EndpointHelper.BuildConsumerUri(ProcessingSlipFaultConsumer.QueueName),
-                RoutingSlipEvents.Faulted);
-
-            return routingSlipBuilder;
-        }
-
-        public RoutingSlipBuilder BuildPictureWorkflow(DownloadYouTubeTrackEvent message, Guid? correlationId)
-        {
-            var routingSlipBuilder = new RoutingSlipBuilder(NewId.NextGuid());
-            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.CorrelationId, correlationId ?? Guid.Empty);
-
-            routingSlipBuilder.AddSubscription(
-                EndpointHelper.BuildConsumerUri(RoutingSlipCleanUpConsumer.QueueName),
-                RoutingSlipEvents.Completed | RoutingSlipEvents.Faulted);
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.GeneratePictureWorkflowPaths,
-                EndpointHelper.BuildExecuteActivityUri(GeneratePictureWorkflowPathsActivity.ExecuteEndpointName),
-                new GeneratePictureWorkflowPathsArguments(
-                    workerConfiguration.Routes.TemporaryFilesDirectory,
-                    $"{message.VideoId}.jpg"));
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.DownloadThumbnail,
-                EndpointHelper.BuildExecuteActivityUri(DownloadFileFromUrlActivity.ExecuteEndpointName),
-                new DownloadFileFromUrlArguments(
-                    message.ThumbnailUrl,
-                    RoutingSlipVariableNames.Picture.OriginalFilePath));
-
-            AddResizeActivity(
-                routingSlipBuilder,
-                ActivityNames.ResizeSmall,
-                ActivityNames.UploadSmall,
-                message.Bucket,
-                RoutingSlipVariableNames.Picture.SmallResizedFilePath,
-                message.Small);
-
-            AddResizeActivity(
-                routingSlipBuilder,
-                ActivityNames.ResizeMedium,
-                ActivityNames.UploadMedium,
-                message.Bucket,
-                RoutingSlipVariableNames.Picture.MediumResizedFilePath,
-                message.Medium);
-
-            AddResizeActivity(
-                routingSlipBuilder,
-                ActivityNames.ResizeLarge,
-                ActivityNames.UploadLarge,
-                message.Bucket,
-                RoutingSlipVariableNames.Picture.LargeResizedFilePath,
-                message.Large);
-
-            routingSlipBuilder.AddActivity(
-                ActivityNames.UpdateTrackPicture,
-                EndpointHelper.BuildExecuteActivityUri(UpdateTrackPictureActivity.ExecuteEndpointName),
-                new UpdateTrackPictureArguments(
-                    message.TrackId,
-                    string.Empty,
-                    RoutingSlipVariableNames.Picture.SmallResizedFilePath,
-                    RoutingSlipVariableNames.Picture.MediumResizedFilePath,
-                    RoutingSlipVariableNames.Picture.LargeResizedFilePath));
-
-            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.SubjectId, message.TrackId);
-            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.ProcessKind, RoutingSlipVariableNames.ProcessKinds.TrackPicture);
-            routingSlipBuilder.AddSubscription(
-                EndpointHelper.BuildConsumerUri(ProcessingSlipFaultConsumer.QueueName),
-                RoutingSlipEvents.Faulted);
-
-            return routingSlipBuilder;
-        }
-
-        static void AddResizeActivity(
-            RoutingSlipBuilder routingSlipBuilder,
-            string resizeActivityName,
-            string uploadActivityName,
-            string bucketName,
-            string destinationFilePathVariableName,
-            ImageSize imageSize)
-        {
-            routingSlipBuilder.AddActivity(
-                resizeActivityName,
-                EndpointHelper.BuildExecuteActivityUri(ResizePictureActivity.ExecuteEndpointName),
-                new ResizePictureLocalArguments(
-                    RoutingSlipVariableNames.Picture.OriginalFilePath,
-                    destinationFilePathVariableName,
-                    imageSize.Width,
-                    imageSize.Height));
-
-            routingSlipBuilder.AddActivity(
-                uploadActivityName,
-                EndpointHelper.BuildExecuteActivityUri(UploadFileToBucketActivity.ExecuteEndpointName),
-                new UploadFileToBucketArguments(
-                    destinationFilePathVariableName,
-                    bucketName,
-                    imageSize.SavePath));
-        }
-    }
-}