chore: group .NET into backend/ and drop non-.NET test artifacts

- Move all .NET (6 projects, solution, Directory.*.props, nuget.config)
  into backend/ so the monorepo root can host non-.NET projects later
- Remove throwaway test artifacts: player.html, pl.json
- Trim dead Flutter rules from .gitignore

Build from backend/Musify.slnx: 0 warnings, 0 errors.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/Musify.Infrastructure/Configuration/AudioTranscoderConfiguration.cs

@@ -0,0 +1,41 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class AudioTranscoderConfiguration
+    {
+        public const string SectionName = "AudioTranscoder";
+
+        [Required]
+        public TimeSpan TranscodingTimeout { get; set; } = TimeSpan.FromMinutes(5);
+
+        [Required]
+        public FfmpegConfiguration Ffmpeg { get; set; } = new FfmpegConfiguration();
+    }
+
+    public class FfmpegConfiguration
+    {
+        [Required]
+        public string ExecutableName { get; set; } = "ffmpeg";
+
+        [Required]
+        public string OutputFileName { get; set; } = "audio.m4a";
+
+        [Required]
+        public string AudioCodec { get; set; } = "aac";
+
+        [Required]
+        public string AudioBitrate { get; set; } = "128k";
+
+        [Range(1, 8)]
+        public int AudioChannels { get; set; } = 2;
+
+        [Range(8000, 192000)]
+        public int AudioSampleRate { get; set; } = 48000;
+
+        [Required]
+        public string AudioProfile { get; set; } = "aac_low";
+
+        public string AdditionalArguments { get; set; } = string.Empty;
+    }
+}

backend/Musify.Infrastructure/Configuration/DatabaseConfiguration.cs

@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class DatabaseConfiguration
+    {
+        public const string SectionName = "Database";
+
+        [Required]
+        public required string ConnectionString { get; set; }
+    }
+}

backend/Musify.Infrastructure/Configuration/InfrastructureStorageConfiguration.cs

@@ -0,0 +1,25 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class InfrastructureStorageConfiguration
+    {
+        public const string SectionName = "InfrastructureStorage";
+
+        [Url]
+        [Required]
+        public required string Address { get; set; }
+
+        [Required]
+        public required string AccessKey { get; set; }
+
+        [Required]
+        public required string SecretAccessKey { get; set; }
+
+        [Required]
+        public bool ForcePathStyle { get; set; }
+
+        [Required]
+        public bool UseHttp { get; set; }
+    }
+}

backend/Musify.Infrastructure/Configuration/MassTransitConfiguration.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class MassTransitConfiguration
+    {
+        public const string SectionName = "MassTransit";
+
+        [Required]
+        public required string Address { get; set; }
+
+        [Required]
+        public required string Username { get; set; }
+
+        [Required]
+        public required string Password { get; set; }
+    }
+}

backend/Musify.Infrastructure/Configuration/OpenTelemetryConfiguration.cs

@@ -0,0 +1,13 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class OpenTelemetryConfiguration
+    {
+        public const string SectionName = "OpenTelemetry";
+
+        [Url]
+        [Required]
+        public required string OtlpEndpoint { get; set; }
+    }
+}

backend/Musify.Infrastructure/Configuration/StreamTicketConfiguration.cs

@@ -0,0 +1,21 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class StreamTicketConfiguration
+    {
+        public const string SectionName = "StreamTicket";
+
+        [Required]
+        public required string PrivateKeyPath { get; set; }
+
+        [Required]
+        public string Audience { get; set; } = "media-gateway";
+
+        [Required]
+        public string Issuer { get; set; } = "musify-webapi";
+
+        [Range(60, 86400)]
+        public int TicketTtlSeconds { get; set; } = 3600;
+    }
+}

backend/Musify.Infrastructure/Configuration/WorkerConfiguration.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Musify.Infrastructure.Configuration
+{
+    public class WorkerConfiguration
+    {
+        public const string SectionName = "Workers";
+
+        [Required]
+        public WorkerRoutes Routes { get; set; } = new WorkerRoutes();
+    }
+
+    public class WorkerRoutes
+    {
+        [Required]
+        public string TemporaryFilesDirectory { get; set; } = Path.GetTempPath();
+    }
+}

backend/Musify.Infrastructure/DesignSettings.json

@@ -0,0 +1,5 @@
+{
+    "Database": {
+        "ConnectionString": ""
+    }
+}

backend/Musify.Infrastructure/Jobs/TemporalUploadsCleanupJob.cs

@@ -0,0 +1,70 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Configuration;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.Jobs
+{
+    public class TemporalUploadsCleanUpJob(
+        IServiceScopeFactory scopeFactory,
+        ILogger<TemporalUploadsCleanUpJob> logger,
+        ApplicationStorageConfiguration storageConfiguration,
+        UploadIntentConfiguration uploadIntentConfiguration)
+        : BackgroundService
+    {
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            logger.LogInformation("TemporalUploadsCleanUpJob started (interval: {Interval}s, prefix: {Prefix})",
+                uploadIntentConfiguration.TemporalCleanUpJobIntervalSeconds,
+                uploadIntentConfiguration.TemporalRootPrefix);
+
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                try
+                {
+                    await RunAsync(stoppingToken);
+                }
+                catch (Exception exception) when (exception is not OperationCanceledException)
+                {
+                    logger.LogError(exception, "Error in TemporalUploadsCleanUpJob");
+                }
+
+                await Task.Delay(TimeSpan.FromSeconds(uploadIntentConfiguration.TemporalCleanUpJobIntervalSeconds), stoppingToken);
+            }
+        }
+
+        async Task RunAsync(CancellationToken cancellationToken)
+        {
+            await using var scope = scopeFactory.CreateAsyncScope();
+            var storageService = scope.ServiceProvider.GetRequiredService<IStorageService>();
+
+            var cutOff = DateTime.UtcNow.AddDays(-uploadIntentConfiguration.TemporalUploadsRetentionDays);
+            var deleted = 0;
+            var errors = 0;
+
+            await foreach (var (key, lastModified) in storageService.ListObjectsAsync(
+                storageConfiguration.Bucket,
+                uploadIntentConfiguration.TemporalRootPrefix,
+                cancellationToken))
+            {
+                if (lastModified >= cutOff)
+                    continue;
+
+                try
+                {
+                    await storageService.RemoveFileAsync(storageConfiguration.Bucket, key, cancellationToken);
+                    deleted++;
+                }
+                catch (Exception exception)
+                {
+                    errors++;
+                    logger.LogWarning(exception, "Failed to delete orphaned temp object {Key}", key);
+                }
+            }
+
+            if (deleted > 0 || errors > 0)
+                logger.LogInformation("TemporalUploadsCleanUpJob: deleted {Deleted} orphaned objects, {Errors} errors", deleted, errors);
+        }
+    }
+}

backend/Musify.Infrastructure/Jobs/UploadIntentExpirationJob.cs

@@ -0,0 +1,73 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Configuration;
+using Musify.Domain.ValueObjects;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.Jobs
+{
+    public class UploadIntentExpirationJob(
+        IServiceScopeFactory scopeFactory,
+        ILogger<UploadIntentExpirationJob> logger,
+        UploadIntentConfiguration uploadIntentConfiguration)
+        : BackgroundService
+    {
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            logger.LogInformation("UploadIntentExpirationJob started (interval: {Interval}s)", uploadIntentConfiguration.ExpirationJobIntervalSeconds);
+
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                try
+                {
+                    await RunAsync(stoppingToken);
+                }
+                catch (Exception exception) when (exception is not OperationCanceledException)
+                {
+                    logger.LogError(exception, "Error in UploadIntentExpirationJob");
+                }
+
+                await Task.Delay(TimeSpan.FromSeconds(uploadIntentConfiguration.ExpirationJobIntervalSeconds), stoppingToken);
+            }
+        }
+
+        async Task RunAsync(CancellationToken cancellationToken)
+        {
+            await using var scope = scopeFactory.CreateAsyncScope();
+            var database = scope.ServiceProvider.GetRequiredService<IDatabase>();
+
+            var now = DateTime.UtcNow;
+
+            var expiredIntents = await database.UploadIntents
+                .Where(i => i.Status == UploadIntentStatus.Issued && i.ExpiresAt < now)
+                .ToListAsync(cancellationToken);
+
+            if (expiredIntents.Count > 0)
+            {
+                foreach (var intent in expiredIntents)
+                    intent.Status = UploadIntentStatus.Expired;
+
+                await database.SaveChangesAsync(cancellationToken);
+                logger.LogInformation("Marked {Count} upload intents as Expired", expiredIntents.Count);
+            }
+
+            if (uploadIntentConfiguration.ExpiredIntentsRetentionDays >= 0)
+            {
+                var retentionCutoff = now.AddDays(-uploadIntentConfiguration.ExpiredIntentsRetentionDays);
+
+                var oldExpiredIntents = await database.UploadIntents
+                    .Where(i => i.Status == UploadIntentStatus.Expired && i.ExpiresAt < retentionCutoff)
+                    .ToListAsync(cancellationToken);
+
+                if (oldExpiredIntents.Count > 0)
+                {
+                    database.UploadIntents.RemoveRange(oldExpiredIntents);
+                    await database.SaveChangesAsync(cancellationToken);
+                    logger.LogInformation("Deleted {Count} old Expired upload intents past retention window", oldExpiredIntents.Count);
+                }
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Audio/GenerateAudioWorkflowPathsActivity.cs

@@ -0,0 +1,73 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Domain.Entities;
+using Musify.Domain.ValueObjects;
+using Musify.Infrastructure.MassTransit.Arguments;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    internal class GenerateAudioWorkflowPathsActivity(
+        IDatabase database,
+        ILogger<GenerateAudioWorkflowPathsActivity> logger)
+        : IExecuteActivity<GenerateAudioWorkflowPathsArguments>
+    {
+        public const string ExecuteEndpointName = "generate-audio-workflow-paths";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<GenerateAudioWorkflowPathsArguments> executeContext)
+        {
+            Track track;
+            try
+            {
+                var getTrack = await database.Tracks.SingleOrDefaultAsync(p => p.Id == executeContext.Arguments.TrackId, executeContext.CancellationToken);
+                track = getTrack ?? throw new InvalidOperationException($"Track with id {executeContext.Arguments.TrackId} not found.");
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to retrieve track for TrackId {TrackId}",
+                    executeContext.Arguments.TrackId);
+                throw;
+            }
+
+            try
+            {
+                track.AudioTranscodeProcessingStatus = ProcessingStatus.Processing;
+                var folderName = Guid.NewGuid().ToString();
+                var sourceFileName = Path.GetFileName(executeContext.Arguments.SourceKey);
+                var workingDirectory = Path.Combine(executeContext.Arguments.TemporaryRootDirectory, folderName);
+                var sourceFilePath = Path.Combine(workingDirectory, sourceFileName);
+
+                Directory.CreateDirectory(workingDirectory);
+                await database.SaveChangesAsync(executeContext.CancellationToken);
+
+                logger.LogDebug("Generated audio workflow paths in {WorkingDirectory}", workingDirectory);
+
+                return executeContext.CompletedWithVariables(new Dictionary<string, object>
+                {
+                    [RoutingSlipVariableNames.Workflow.TemporalDirectory] = workingDirectory,
+                    [RoutingSlipVariableNames.Audio.SourceFilePath] = sourceFilePath,
+                    [RoutingSlipVariableNames.Audio.TranscodedDirectory] = workingDirectory
+                } );
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to generate audio workflow paths for {SourceKey}",
+                    executeContext.Arguments.SourceKey);
+
+                try
+                {
+                    track.AudioTranscodeProcessingStatus = ProcessingStatus.Failed;
+                    await database.SaveChangesAsync(executeContext.CancellationToken);
+                }
+                catch (Exception dbException)
+                {
+                    logger.LogError(dbException, "Failed to update ProcessingStatus to Failed for track {TrackId}",
+                        executeContext.Arguments.TrackId);
+                }
+
+                throw;
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Audio/TranscodeAudioActivity.cs

@@ -0,0 +1,89 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Domain.Entities;
+using Musify.Domain.ValueObjects;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    internal class TranscodeAudioActivity(
+        IDatabase database,
+        IAudioTranscoderService audioTranscoder,
+        ILogger<TranscodeAudioActivity> logger)
+        : IActivity<TranscodeAudioArguments, TranscodeAudioLog>
+    {
+        public const string ExecuteEndpointName = "transcode-audio";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<TranscodeAudioArguments> executeContext)
+        {
+            var sourceFilePath = executeContext.GetVariable<string>(executeContext.Arguments.SourceFilePathVariable);
+            ArgumentNullException.ThrowIfNull(sourceFilePath, nameof(sourceFilePath));
+            var workingDirectory = executeContext.GetVariable<string>(executeContext.Arguments.WorkingDirectoryVariable);
+            ArgumentNullException.ThrowIfNull(workingDirectory, nameof(workingDirectory));
+
+            Track track;
+            try
+            {
+                var getTrack = await database.Tracks.SingleOrDefaultAsync(t => t.Id == executeContext.Arguments.TrackId, executeContext.CancellationToken);
+                track = getTrack ?? throw new InvalidOperationException($"Track with Id {executeContext.Arguments.TrackId} not found");
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to retrieve track with Id {TrackId} from database", executeContext.Arguments.TrackId);
+                throw;
+            }
+
+            try
+            {
+                await using (var fileStream = File.OpenRead(sourceFilePath))
+                {
+                    await audioTranscoder.TranscodeToAudioFileAsync(
+                        fileStream,
+                        workingDirectory,
+                        executeContext.CancellationToken);
+                }
+
+                File.Delete(sourceFilePath);
+                return executeContext.Completed();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to transcode {SourceFilePath}", sourceFilePath);
+
+                try
+                {
+                    track.AudioTranscodeProcessingStatus = ProcessingStatus.Failed;
+                    await database.SaveChangesAsync(executeContext.CancellationToken);
+                }
+                catch (Exception dbException)
+                {
+                    logger.LogError(dbException, "Failed to update ProcessingStatus to Failed for track {TrackId}",
+                        executeContext.Arguments.TrackId);
+                }
+
+                throw;
+            }
+        }
+
+        public Task<CompensationResult> Compensate(CompensateContext<TranscodeAudioLog> compensateContext)
+        {
+            try
+            {
+                if (Directory.Exists(compensateContext.Log.WorkingDirectory))
+                    Directory.Delete(compensateContext.Log.WorkingDirectory, recursive: true);
+                else
+                    logger.LogWarning("Working directory {WorkingDirectory} not found during compensation",
+                        compensateContext.Log.WorkingDirectory);
+                return Task.FromResult(compensateContext.Compensated());
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate transcoded audio directory {WorkingDirectory}", compensateContext.Log.WorkingDirectory);
+                return Task.FromResult(compensateContext.Failed(exception));
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Audio/UpdateTrackAudioActivity.cs

@@ -0,0 +1,101 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Domain.Entities;
+using Musify.Domain.ValueObjects;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Audio
+{
+    internal class UpdateTrackAudioActivity(
+        IDatabase database,
+        ILogger<UpdateTrackAudioActivity> logger)
+        : IActivity<UpdateTrackAudioArguments, UpdateTrackAudioLog>
+    {
+        public const string ExecuteEndpointName = "update-track-audio";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<UpdateTrackAudioArguments> executeContext)
+        {
+            Track track;
+            try
+            {
+                var getTrack = await database.Tracks.SingleOrDefaultAsync(t => t.Id == executeContext.Arguments.TrackId, executeContext.CancellationToken);
+                track = getTrack ?? throw new InvalidOperationException($"Track with id {executeContext.Arguments.TrackId} not found");
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to retrieve track {TrackId}",
+                    executeContext.Arguments.TrackId);
+                throw;
+            }
+
+            var audioFolderKey = executeContext.Arguments.AudioFolderKey;
+            logger.LogDebug("Resolved audio folder key: {AudioFolderKey}", audioFolderKey);
+
+            if (string.IsNullOrWhiteSpace(audioFolderKey))
+            {
+                logger.LogWarning("Audio folder key is empty for track {TrackId}; skipping update", track.Id);
+                return executeContext.Completed();
+            }
+
+            try
+            {
+                var log = new UpdateTrackAudioLog(
+                    track.Id,
+                    track.AudioFolderName);
+
+                track.AudioFolderName = Path.GetFileName(audioFolderKey);
+                track.AudioTranscodeProcessingStatus = ProcessingStatus.Completed;
+                await database.SaveChangesAsync(executeContext.CancellationToken);
+
+                logger.LogInformation("Updated track {TrackId} audio", executeContext.Arguments.TrackId);
+
+                return executeContext.Completed(log);
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to update track {TrackId} audio",
+                    executeContext.Arguments.TrackId);
+
+                try
+                {
+                    track.AudioTranscodeProcessingStatus = ProcessingStatus.Failed;
+                    await database.SaveChangesAsync(executeContext.CancellationToken);
+                }
+                catch (Exception dbException)
+                {
+                    logger.LogError(dbException, "Failed to update ProcessingStatus to Failed for track {TrackId}",
+                        executeContext.Arguments.TrackId);
+                }
+
+                throw;
+            }
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<UpdateTrackAudioLog> compensateContext)
+        {
+            try
+            {
+                var track = await database.Tracks.SingleOrDefaultAsync(t => t.Id == compensateContext.Log.TrackId, compensateContext.CancellationToken);
+                if (track is null)
+                    throw new InvalidOperationException($"Track with id {compensateContext.Log.TrackId} not found");
+
+                track.AudioFolderName = compensateContext.Log.PreviousAudioFolderName;
+                track.AudioTranscodeProcessingStatus = ProcessingStatus.Failed;
+                await database.SaveChangesAsync(compensateContext.CancellationToken);
+
+                logger.LogInformation("Compensated track {TrackId} audio", compensateContext.Log.TrackId);
+
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate track {TrackId} audio",
+                    compensateContext.Log.TrackId);
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Files/CopyFileInBucketActivity.cs

@@ -0,0 +1,61 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Files
+{
+    internal class CopyFileInBucketActivity(
+        IStorageService storageHandler,
+        ILogger<CopyFileInBucketActivity> logger)
+        : IActivity<CopyFileInBucketArguments, CopyFileInBucketLog>
+    {
+        public const string ExecuteEndpointName = "copy-file-in-bucket";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<CopyFileInBucketArguments> executeContext)
+        {
+            try
+            {
+                await storageHandler.CopyFileAsync(
+                    executeContext.Arguments.SourceBucket,
+                    executeContext.Arguments.SourceKey,
+                    executeContext.Arguments.DestinationBucket,
+                    executeContext.Arguments.DestinationKey,
+                    executeContext.CancellationToken);
+
+                return executeContext.Completed(new CopyFileInBucketLog(
+                    executeContext.Arguments.DestinationBucket,
+                    executeContext.Arguments.DestinationKey));
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to copy {SourceBucket}/{SourceKey} to {DestinationBucket}/{DestinationKey}",
+                    executeContext.Arguments.SourceBucket,
+                    executeContext.Arguments.SourceKey,
+                    executeContext.Arguments.DestinationBucket,
+                    executeContext.Arguments.DestinationKey);
+                throw;
+            }
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<CopyFileInBucketLog> compensateContext)
+        {
+            try
+            {
+                await storageHandler.RemoveFileAsync(
+                    compensateContext.Log.DestinationBucket,
+                    compensateContext.Log.DestinationKey,
+                    compensateContext.CancellationToken);
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate copied file {Bucket}/{Key}",
+                    compensateContext.Log.DestinationBucket,
+                    compensateContext.Log.DestinationKey);
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Files/DownloadFileFromBucketActivity.cs

@@ -0,0 +1,63 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Files
+{
+    internal class DownloadFileFromBucketActivity(
+        IStorageService storageHandler,
+        ILogger<DownloadFileFromBucketActivity> logger)
+        : IActivity<DownloadFileFromBucketArguments, DownloadFileFromBucketLog>
+    {
+        public const string ExecuteEndpointName = "download-file-from-bucket";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<DownloadFileFromBucketArguments> executeContext)
+        {
+            var destinationPath = executeContext.GetVariable<string>(executeContext.Arguments.DestinationFilePathVariable);
+            ArgumentNullException.ThrowIfNull(destinationPath, nameof(destinationPath));
+
+            try
+            {
+                using var fileStream = await storageHandler.GetFileAsync(
+                    executeContext.Arguments.Bucket,
+                    executeContext.Arguments.Key,
+                    executeContext.CancellationToken);
+
+                var destinationDirectory = Path.GetDirectoryName(destinationPath);
+                if (!string.IsNullOrWhiteSpace(destinationDirectory))
+                    Directory.CreateDirectory(destinationDirectory);
+
+                if (fileStream.CanSeek)
+                    fileStream.Position = 0;
+
+                using var destinationStream = File.Create(destinationPath);
+                await fileStream.CopyToAsync(destinationStream, executeContext.CancellationToken);
+                return executeContext.Completed(new DownloadFileFromBucketLog(
+                    executeContext.Arguments.Bucket,
+                    executeContext.Arguments.Key,
+                    destinationPath));
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to download file from bucket");
+                throw;
+            }
+        }
+
+        public Task<CompensationResult> Compensate(CompensateContext<DownloadFileFromBucketLog> compensateContext)
+        {
+            try
+            {
+                File.Delete(compensateContext.Log.DestinationFilePath);
+                return Task.FromResult(compensateContext.Compensated());
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate downloaded file {DestinationFilePath}", compensateContext.Log.DestinationFilePath);
+                return Task.FromResult(compensateContext.Failed(exception));
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Files/RemoveFileFromBucketActivity.cs

@@ -0,0 +1,46 @@
+using MassTransit;
+using Amazon.S3;
+using Microsoft.Extensions.Logging;
+using Musify.Infrastructure.MassTransit.Arguments;
+using System.Net;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Files
+{
+    internal class RemoveFileFromBucketActivity(
+        IStorageService storageHandler,
+        ILogger<RemoveFileFromBucketActivity> logger)
+        : IExecuteActivity<RemoveFileFromBucketArguments>
+    {
+        public const string ExecuteEndpointName = "remove-file-from-bucket";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<RemoveFileFromBucketArguments> executeContext)
+        {
+            try
+            {
+                await storageHandler.RemoveFileAsync(
+                    executeContext.Arguments.Bucket,
+                    executeContext.Arguments.Key,
+                    executeContext.CancellationToken);
+                return executeContext.Completed();
+            }
+            catch (AmazonS3Exception exception) when (
+                exception.StatusCode == HttpStatusCode.NotFound
+                || string.Equals(exception.ErrorCode, "NoSuchKey", StringComparison.OrdinalIgnoreCase))
+            {
+                logger.LogInformation(
+                    "Key {Key} not found in bucket {Bucket}, skipping",
+                    executeContext.Arguments.Key,
+                    executeContext.Arguments.Bucket);
+                return executeContext.Completed();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to remove {Key} from bucket {Bucket}",
+                    executeContext.Arguments.Key,
+                    executeContext.Arguments.Bucket);
+                throw;
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Files/TransferFilesToBucketActivity.cs

@@ -0,0 +1,66 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    public class TransferFilesToBucketActivity(
+        IStorageService storageHandler,
+        ILogger<TransferFilesToBucketActivity> logger)
+        : IActivity<TransferFilesToBucketArguments, TransferFilesToBucketLog>
+    {
+        public const string ExecuteEndpointName = "transfer-files-to-bucket";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<TransferFilesToBucketArguments> executeContext)
+        {
+            var folderPath = executeContext.GetVariable<string>(executeContext.Arguments.SourceDirectoryVariable);
+            ArgumentNullException.ThrowIfNull(folderPath, nameof(folderPath));
+            var destinationKey = executeContext.Arguments.DestinationKey;
+            ArgumentNullException.ThrowIfNull(destinationKey, nameof(destinationKey));
+
+            try
+            {
+                var uploadedKeys = Directory.GetFiles(folderPath)
+                    .Select(file => Path.Combine(destinationKey, Path.GetFileName(file)))
+                    .ToArray();
+
+                await storageHandler.TransferFilesAsync(
+                    folderPath,
+                    executeContext.Arguments.DestinationBucket,
+                    destinationKey,
+                    executeContext.CancellationToken);
+                return executeContext.Completed();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to transfer files from {FolderPath} to {DestinationBucket}",
+                    folderPath,
+                    executeContext.Arguments.DestinationBucket);
+                throw;
+            }
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<TransferFilesToBucketLog> compensateContext)
+        {
+            try
+            {
+                foreach (var uploadedKey in compensateContext.Log.UploadedKeys)
+                {
+                    await storageHandler.RemoveFileAsync(
+                        compensateContext.Log.DestinationBucket,
+                        uploadedKey,
+                        compensateContext.CancellationToken);
+                }
+
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate file transfers to {DestinationBucket}", compensateContext.Log.DestinationBucket);
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Files/UploadFileToBucketActivity.cs

@@ -0,0 +1,61 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Files
+{
+    public class UploadFileToBucketActivity(IStorageService storageHandler,
+        ILogger<UploadFileToBucketActivity> logger)
+        : IActivity<UploadFileToBucketArguments, UploadFileToBucketLog>
+    {
+        public const string ExecuteEndpointName = "upload-file-to-bucket";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<UploadFileToBucketArguments> executeContext)
+        {
+            var sourceFilePath = executeContext.GetVariable<string>(executeContext.Arguments.FilePathVariable);
+            ArgumentNullException.ThrowIfNull(sourceFilePath, nameof(sourceFilePath));
+            var fileName = Path.GetFileName(sourceFilePath);
+            var destinationKey = string.Join('/', new[] { executeContext.Arguments.DestinationRoute, fileName }
+                .Where(static s => !string.IsNullOrWhiteSpace(s))
+                .Select(static s => s.Trim().Trim('/', '\\')));
+
+            try
+            {
+                await storageHandler.UploadFileAsync(
+                    sourceFilePath,
+                    executeContext.Arguments.DestinationBucket,
+                    destinationKey,
+                    executeContext.CancellationToken);
+                return executeContext.CompletedWithVariables(new UploadFileToBucketLog(
+                    executeContext.Arguments.DestinationBucket,
+                    destinationKey));
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to upload file to bucket");
+                throw;
+            }
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<UploadFileToBucketLog> compensateContext)
+        {
+            try
+            {
+                await storageHandler.RemoveFileAsync(
+                    compensateContext.Log.DestinationBucket,
+                    compensateContext.Log.DestinationKey,
+                    compensateContext.CancellationToken);
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Error compensating file upload for {Bucket}/{Key}",
+                    compensateContext.Log.DestinationBucket,
+                    compensateContext.Log.DestinationKey);
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Pictures/GeneratePictureWorkflowPathsActivity.cs

@@ -0,0 +1,51 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Infrastructure.MassTransit.Arguments;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    public class GeneratePictureWorkflowPathsActivity(
+        ILogger<GeneratePictureWorkflowPathsActivity> logger)
+        : IExecuteActivity<GeneratePictureWorkflowPathsArguments>
+    {
+        public const string ExecuteEndpointName = "generate-picture-workflow-paths";
+
+        internal const string ResizedPictureFileExtension = ".webp";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<GeneratePictureWorkflowPathsArguments> executeContext)
+        {
+            try
+            {
+                var workingDirectory = Path.Combine(executeContext.Arguments.TemporaryRootDirectory, Guid.NewGuid().ToString());
+
+                var sourceFilePath = Path.Combine(
+                    workingDirectory, Guid.NewGuid().ToString() + Path.GetExtension(executeContext.Arguments.SourceKey));
+                var smallPictureFilePath = Path.Combine(
+                    workingDirectory, Guid.NewGuid().ToString() + ResizedPictureFileExtension);
+                var mediumPictureFilePath = Path.Combine(
+                    workingDirectory, Guid.NewGuid().ToString() + ResizedPictureFileExtension);
+                var largePictureFilePath = Path.Combine(
+                    workingDirectory, Guid.NewGuid().ToString() + ResizedPictureFileExtension);
+
+                Directory.CreateDirectory(workingDirectory);
+
+                logger.LogDebug("Generated picture workflow paths in {WorkingDirectory}",
+                    workingDirectory);
+                return executeContext.CompletedWithVariables(new Dictionary<string, object>
+                {
+                    [RoutingSlipVariableNames.Workflow.TemporalDirectory] = workingDirectory,
+                    [RoutingSlipVariableNames.Picture.OriginalFilePath] = sourceFilePath,
+                    [RoutingSlipVariableNames.Picture.SmallResizedFilePath] = smallPictureFilePath,
+                    [RoutingSlipVariableNames.Picture.MediumResizedFilePath] = mediumPictureFilePath,
+                    [RoutingSlipVariableNames.Picture.LargeResizedFilePath] = largePictureFilePath
+                } );
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to generate picture workflow paths for {SourceKey}",
+                    executeContext.Arguments.SourceKey);
+                throw;
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Pictures/ResizePictureActivity.cs

@@ -0,0 +1,72 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    public class ResizePictureActivity(
+        IPictureService pictureHandler,
+        ILogger<ResizePictureActivity> logger)
+        : IActivity<ResizePictureLocalArguments, ResizePictureLog>
+    {
+        public const string ExecuteEndpointName = "resize-picture";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<ResizePictureLocalArguments> executeContext)
+        {
+            var sourceFilePath = executeContext.GetVariable<string>(executeContext.Arguments.SourceFilePathVariable);
+            ArgumentNullException.ThrowIfNull(sourceFilePath, nameof(sourceFilePath));
+            var destinationFilePath = executeContext.GetVariable<string>(executeContext.Arguments.DestinationFilePathVariable);
+            ArgumentNullException.ThrowIfNull(destinationFilePath, nameof(destinationFilePath));
+
+            try
+            {
+                if (!File.Exists(sourceFilePath))
+                {
+                    logger.LogWarning("Source file not found: {SourceFilePath}", sourceFilePath);
+                    throw new FileNotFoundException($"Source file not found: {sourceFilePath}");
+                }
+
+                await using var fileStream = File.OpenRead(sourceFilePath);
+
+                var resizedPicture = await pictureHandler.ResizePictureAsWebpAsync(
+                    fileStream,
+                    executeContext.Arguments.Width,
+                    executeContext.Arguments.Height,
+                    executeContext.CancellationToken);
+
+                var destinationDirectory = Path.GetDirectoryName(destinationFilePath);
+                if (!string.IsNullOrEmpty(destinationDirectory))
+                    Directory.CreateDirectory(destinationDirectory);
+
+                await using var destinationStream = File.Create(destinationFilePath);
+                await resizedPicture.CopyToAsync(destinationStream, executeContext.CancellationToken);
+
+                logger.LogDebug("Resized picture from {SourceFilePath} to {DestinationFilePath}",
+                    sourceFilePath,
+                    destinationFilePath);
+                return executeContext.Completed(new ResizePictureLog(destinationFilePath));
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to resize picture {SourceFilePath}", sourceFilePath);
+                throw;
+            }
+        }
+
+        public Task<CompensationResult> Compensate(CompensateContext<ResizePictureLog> compensateContext)
+        {
+            try
+            {
+                File.Delete(compensateContext.Log.DestinationFilePath);
+                return Task.FromResult(compensateContext.Compensated());
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate resized file {DestinationFilePath}", compensateContext.Log.DestinationFilePath);
+                return Task.FromResult(compensateContext.Failed(exception));
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Pictures/UpdatePlayListPictureActivity.cs

@@ -0,0 +1,95 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    public class UpdatePlayListPictureActivity(
+        IDatabase database,
+        ILogger<UpdatePlayListPictureActivity> logger)
+        : IActivity<UpdatePlayListPictureArguments, UpdatePlayListPictureLog>
+    {
+        public const string ExecuteEndpointName = "update-playlist-picture";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<UpdatePlayListPictureArguments> executeContext)
+        {
+            var smallResizedVariable = executeContext.GetVariable<string>(executeContext.Arguments.SmallPictureVariable);
+            ArgumentNullException.ThrowIfNull(smallResizedVariable, nameof(smallResizedVariable));
+            var mediumResizedVariable = executeContext.GetVariable<string>(executeContext.Arguments.MediumPictureVariable);
+            ArgumentNullException.ThrowIfNull(mediumResizedVariable, nameof(mediumResizedVariable));
+            var largeResizedVariable = executeContext.GetVariable<string>(executeContext.Arguments.LargePictureVariable);
+            ArgumentNullException.ThrowIfNull(largeResizedVariable, nameof(largeResizedVariable));
+
+            try
+            {
+                var playList = await database.PlayLists.FindAsync(
+                    [executeContext.Arguments.PlayListId],
+                    cancellationToken: executeContext.CancellationToken);
+
+                if (playList is null)
+                {
+                    logger.LogWarning("Playlist {PlayListId} not found",
+                        executeContext.Arguments.PlayListId);
+                    throw new InvalidOperationException($"PlayList with id {executeContext.Arguments.PlayListId} not found");
+                }
+
+                var log = new UpdatePlayListPictureLog(
+                    playList.Id,
+                    playList.OriginalPictureName,
+                    playList.SmallPictureName,
+                    playList.MediumPictureName,
+                    playList.LargePictureName);
+
+                playList.OriginalPictureName = Path.GetFileName(executeContext.Arguments.OriginalPictureKey);
+                playList.SmallPictureName = Path.GetFileName(smallResizedVariable);
+                playList.MediumPictureName = Path.GetFileName(mediumResizedVariable);
+                playList.LargePictureName = Path.GetFileName(largeResizedVariable);
+
+                database.PlayLists.Update(playList);
+                await database.SaveChangesAsync(executeContext.CancellationToken);
+
+                logger.LogInformation("Updated playlist {PlayListId} pictures",
+                    executeContext.Arguments.PlayListId);
+                return executeContext.Completed();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to update playlist {PlayListId} pictures",
+                    executeContext.Arguments.PlayListId);
+                throw;
+            }
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<UpdatePlayListPictureLog> compensateContext)
+        {
+            try
+            {
+                var playList = await database.PlayLists.FindAsync(
+                    [compensateContext.Log.PlayListId],
+                    cancellationToken: compensateContext.CancellationToken);
+
+                if (playList is null)
+                {
+                    return compensateContext.Compensated();
+                }
+
+                playList.OriginalPictureName = compensateContext.Log.PreviousOriginalPictureKey;
+                playList.SmallPictureName = compensateContext.Log.PreviousSmallPictureKey;
+                playList.MediumPictureName = compensateContext.Log.PreviousMediumPictureKey;
+                playList.LargePictureName = compensateContext.Log.PreviousLargePictureKey;
+
+                database.PlayLists.Update(playList);
+                await database.SaveChangesAsync(compensateContext.CancellationToken);
+
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate playlist {PlayListId} pictures", compensateContext.Log.PlayListId);
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Pictures/UpdateTrackPictureActivity.cs

@@ -0,0 +1,97 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Domain.ValueObjects;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities
+{
+    public class UpdateTrackPictureActivity(
+        IDatabase database,
+        ILogger<UpdateTrackPictureActivity> logger)
+        : IActivity<UpdateTrackPictureArguments, UpdateTrackPictureLog>
+    {
+        public const string ExecuteEndpointName = "update-track-picture";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<UpdateTrackPictureArguments> executeContext)
+        {
+            var smallResizedVariable = executeContext.GetVariable<string>(executeContext.Arguments.SmallPictureVariable);
+            ArgumentNullException.ThrowIfNull(smallResizedVariable, nameof(smallResizedVariable));
+            var mediumResizedVariable = executeContext.GetVariable<string>(executeContext.Arguments.MediumPictureVariable);
+            ArgumentNullException.ThrowIfNull(mediumResizedVariable, nameof(mediumResizedVariable));
+            var largeResizedVariable = executeContext.GetVariable<string>(executeContext.Arguments.LargePictureVariable);
+            ArgumentNullException.ThrowIfNull(largeResizedVariable, nameof(largeResizedVariable));
+
+            try
+            {
+                var track = await database.Tracks.FindAsync(
+                    [executeContext.Arguments.TrackId],
+                    cancellationToken: executeContext.CancellationToken);
+
+                if (track is null)
+                {
+                    logger.LogWarning("Track {TrackId} not found",
+                        executeContext.Arguments.TrackId);
+                    throw new InvalidOperationException($"Track with id {executeContext.Arguments.TrackId} not found");
+                }
+
+                var log = new UpdateTrackPictureLog(
+                    track.Id,
+                    track.OriginalPictureName,
+                    track.SmallPictureName,
+                    track.MediumPictureName,
+                    track.LargePictureName);
+
+                track.OriginalPictureName = Path.GetFileName(executeContext.Arguments.OriginalPictureKey);
+                track.SmallPictureName = Path.GetFileName(smallResizedVariable);
+                track.MediumPictureName = Path.GetFileName(mediumResizedVariable);
+                track.LargePictureName = Path.GetFileName(largeResizedVariable);
+                track.PicturesProcessingStatus = ProcessingStatus.Completed;
+
+                database.Tracks.Update(track);
+                await database.SaveChangesAsync(executeContext.CancellationToken);
+
+                logger.LogInformation("Updated track {TrackId} pictures",
+                    executeContext.Arguments.TrackId);
+
+                return executeContext.Completed();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to update track {TrackId} pictures",
+                    executeContext.Arguments.TrackId);
+                throw;
+            }
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<UpdateTrackPictureLog> compensateContext)
+        {
+            try
+            {
+                var track = await database.Tracks.FindAsync(
+                    [compensateContext.Log.TrackId],
+                    cancellationToken: compensateContext.CancellationToken);
+
+                if (track is null)
+                    return compensateContext.Compensated();
+
+                track.OriginalPictureName = compensateContext.Log.PreviousOriginalPictureKey;
+                track.SmallPictureName = compensateContext.Log.PreviousSmallPictureKey;
+                track.MediumPictureName = compensateContext.Log.PreviousMediumPictureKey;
+                track.LargePictureName = compensateContext.Log.PreviousLargePictureKey;
+                track.PicturesProcessingStatus = ProcessingStatus.Failed;
+
+                database.Tracks.Update(track);
+                await database.SaveChangesAsync(compensateContext.CancellationToken);
+
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate track {TrackId} pictures", compensateContext.Log.TrackId);
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/PlayLists/DeletePlayListFromDbActivity.cs

@@ -0,0 +1,36 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+
+namespace Musify.Infrastructure.MassTransit.Activities.PlayLists
+{
+    internal class DeletePlayListFromDbActivity(
+        IDatabase database,
+        ILogger<DeletePlayListFromDbActivity> logger)
+        : IExecuteActivity<DeletePlayListFromDbArguments>
+    {
+        public const string ExecuteEndpointName = "delete-playList-from-db";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<DeletePlayListFromDbArguments> executeContext)
+        {
+            var playList = await database.PlayLists
+                .SingleOrDefaultAsync(p => p.Id == executeContext.Arguments.PlayListId, executeContext.CancellationToken);
+
+            if (playList is null)
+            {
+                logger.LogInformation(
+                    "PlayList {PlayListId} not found while deleting from DB, skipping",
+                    executeContext.Arguments.PlayListId);
+                return executeContext.Completed();
+            }
+
+            database.PlayLists.Remove(playList);
+            await database.SaveChangesAsync(executeContext.CancellationToken);
+
+            logger.LogInformation("Deleted playlist {PlayListId} from DB", playList.Id);
+            return executeContext.Completed();
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/PlayLists/MarkPlayListAsRemovingActivity.cs

@@ -0,0 +1,37 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Domain.ValueObjects;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.MassTransit.Activities.PlayLists
+{
+    internal class MarkPlayListAsRemovingActivity(
+        IDatabase database,
+        ILogger<MarkPlayListAsRemovingActivity> logger)
+        : IExecuteActivity<MarkPlayListAsRemovingArguments>
+    {
+        public const string ExecuteEndpointName = "mark-playList-as-removing";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<MarkPlayListAsRemovingArguments> executeContext)
+        {
+            var playList = await database.PlayLists
+                .SingleOrDefaultAsync(p => p.Id == executeContext.Arguments.PlayListId, executeContext.CancellationToken);
+
+            if (playList is null)
+            {
+                logger.LogInformation(
+                    "PlayList {PlayListId} not found while marking as removing, skipping",
+                    executeContext.Arguments.PlayListId);
+                return executeContext.Completed();
+            }
+
+            playList.LifeCycleStatus = LifeCycleStatus.Removing;
+            await database.SaveChangesAsync(executeContext.CancellationToken);
+
+            logger.LogInformation("Marked playlist {PlayListId} as removing", playList.Id);
+            return executeContext.Completed();
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/PlayLists/PublishPlayListPictureProcessingEventActivity.cs

@@ -0,0 +1,34 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.Arguments;
+
+namespace Musify.Infrastructure.MassTransit.Activities.PlayLists
+{
+    internal class PublishPlayListPictureProcessingEventActivity(
+        IPublishEndpoint publishEndpoint,
+        ILogger<PublishPlayListPictureProcessingEventActivity> logger)
+        : IExecuteActivity<PublishPlayListPictureProcessingEventArguments>
+    {
+        public const string ExecuteEndpointName = "publish-playList-picture-processing-event";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<PublishPlayListPictureProcessingEventArguments> executeContext)
+        {
+            var arguments = executeContext.Arguments;
+
+            await publishEndpoint.Publish(
+                new UpdatePlayListPictureEvent(
+                    arguments.PlayListId,
+                    arguments.Bucket,
+                    arguments.FinalPictureKey,
+                    arguments.Small,
+                    arguments.Medium,
+                    arguments.Large),
+                executeContext.CancellationToken);
+
+            logger.LogInformation("Published picture processing event for playlist {PlayListId}", arguments.PlayListId);
+
+            return executeContext.Completed();
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Tracks/DeleteTrackFromDbActivity.cs

@@ -0,0 +1,36 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.MassTransit.Arguments;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Tracks
+{
+    internal class DeleteTrackFromDbActivity(
+        IDatabase database,
+        ILogger<DeleteTrackFromDbActivity> logger)
+        : IExecuteActivity<DeleteTrackFromDbArguments>
+    {
+        public const string ExecuteEndpointName = "delete-track-from-db";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<DeleteTrackFromDbArguments> executeContext)
+        {
+            var track = await database.Tracks
+                .SingleOrDefaultAsync(t => t.Id == executeContext.Arguments.TrackId, executeContext.CancellationToken);
+
+            if (track is null)
+            {
+                logger.LogInformation(
+                    "Track {TrackId} not found while deleting from DB, skipping",
+                    executeContext.Arguments.TrackId);
+                return executeContext.Completed();
+            }
+
+            database.Tracks.Remove(track);
+            await database.SaveChangesAsync(executeContext.CancellationToken);
+
+            logger.LogInformation("Deleted track {TrackId} from DB", track.Id);
+            return executeContext.Completed();
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Tracks/MarkTrackAsRemovingActivity.cs

@@ -0,0 +1,37 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Domain.ValueObjects;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Tracks
+{
+    internal class MarkTrackAsRemovingActivity(
+        IDatabase database,
+        ILogger<MarkTrackAsRemovingActivity> logger)
+        : IExecuteActivity<MarkTrackAsRemovingArguments>
+    {
+        public const string ExecuteEndpointName = "mark-track-as-removing";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<MarkTrackAsRemovingArguments> executeContext)
+        {
+            var track = await database.Tracks
+                .SingleOrDefaultAsync(t => t.Id == executeContext.Arguments.TrackId, executeContext.CancellationToken);
+
+            if (track is null)
+            {
+                logger.LogInformation(
+                    "Track {TrackId} not found while marking as removing, skipping",
+                    executeContext.Arguments.TrackId);
+                return executeContext.Completed();
+            }
+
+            track.LifeCycleStatus = LifeCycleStatus.Removing;
+            await database.SaveChangesAsync(executeContext.CancellationToken);
+
+            logger.LogInformation("Marked track {TrackId} as removing", track.Id);
+            return executeContext.Completed();
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/Tracks/PublishTrackProcessingEventsActivity.cs

@@ -0,0 +1,43 @@
+using MassTransit;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.Arguments;
+
+namespace Musify.Infrastructure.MassTransit.Activities.Tracks
+{
+    internal class PublishTrackProcessingEventsActivity(
+        IPublishEndpoint publishEndpoint,
+        ILogger<PublishTrackProcessingEventsActivity> logger)
+        : IExecuteActivity<PublishTrackProcessingEventsArguments>
+    {
+        public const string ExecuteEndpointName = "publish-track-processing-events";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<PublishTrackProcessingEventsArguments> executeContext)
+        {
+            var arguments = executeContext.Arguments;
+
+            await publishEndpoint.Publish(
+                new UpdateTrackPictureEvent(
+                    arguments.TrackId,
+                    arguments.Bucket,
+                    arguments.FinalPictureKey,
+                    arguments.Small,
+                    arguments.Medium,
+                    arguments.Large),
+                executeContext.CancellationToken);
+
+            await publishEndpoint.Publish(
+                new UpdateTrackAudioEvent(
+                    arguments.TrackId,
+                    arguments.Bucket,
+                    arguments.FinalAudioKey,
+                    arguments.Bucket,
+                    arguments.AudioDestinationFolderKey),
+                executeContext.CancellationToken);
+
+            logger.LogInformation("Published processing events for track {TrackId}", arguments.TrackId);
+
+            return executeContext.Completed();
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Activities/UploadIntents/ConsumeUploadIntentsActivity.cs

@@ -0,0 +1,62 @@
+using MassTransit;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Domain.ValueObjects;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Logs;
+
+namespace Musify.Infrastructure.MassTransit.Activities.UploadIntents
+{
+    internal class ConsumeUploadIntentsActivity(
+        IDatabase database,
+        ILogger<ConsumeUploadIntentsActivity> logger)
+        : IActivity<ConsumeUploadIntentsArguments, ConsumeUploadIntentsLog>
+    {
+        public const string ExecuteEndpointName = "consume-upload-intents";
+
+        public async Task<ExecutionResult> Execute(ExecuteContext<ConsumeUploadIntentsArguments> executeContext)
+        {
+            var intentIds = executeContext.Arguments.IntentIds;
+
+            var intents = await database.UploadIntents
+                .Where(i => intentIds.Contains(i.Id))
+                .ToListAsync(executeContext.CancellationToken);
+
+            foreach (var intent in intents)
+                intent.Status = UploadIntentStatus.Consumed;
+
+            await database.SaveChangesAsync(executeContext.CancellationToken);
+
+            logger.LogInformation("Marked {Count} upload intent(s) as consumed", intents.Count);
+
+            return executeContext.Completed(new ConsumeUploadIntentsLog(intentIds));
+        }
+
+        public async Task<CompensationResult> Compensate(CompensateContext<ConsumeUploadIntentsLog> compensateContext)
+        {
+            try
+            {
+                var intentIds = compensateContext.Log.IntentIds;
+
+                var intents = await database.UploadIntents
+                    .Where(i => intentIds.Contains(i.Id))
+                    .ToListAsync(compensateContext.CancellationToken);
+
+                foreach (var intent in intents)
+                    intent.Status = UploadIntentStatus.Issued;
+
+                await database.SaveChangesAsync(compensateContext.CancellationToken);
+
+                logger.LogInformation("Reverted {Count} upload intent(s) back to Issued", intents.Count);
+
+                return compensateContext.Compensated();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to compensate upload intent consumption");
+                return compensateContext.Failed(exception);
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Arguments/ConsumeUploadIntentsArguments.cs

@@ -0,0 +1,5 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record ConsumeUploadIntentsArguments(
+        Guid[] IntentIds);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/CopyFileInBucketArguments.cs

@@ -0,0 +1,8 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record CopyFileInBucketArguments(
+        string SourceBucket,
+        string SourceKey,
+        string DestinationBucket,
+        string DestinationKey);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/DeletePlayListFromDbArguments.cs

@@ -0,0 +1,5 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    internal record DeletePlayListFromDbArguments(
+        Guid PlayListId);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/DeleteTrackFromDbArguments.cs

@@ -0,0 +1,5 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    internal record DeleteTrackFromDbArguments(
+        Guid TrackId);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/DownloadFileFromBucketArguments.cs

@@ -0,0 +1,7 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record DownloadFileFromBucketArguments(
+        string Bucket,
+        string Key,
+        string DestinationFilePathVariable);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/GenerateAudioWorkflowPathsArguments.cs

@@ -0,0 +1,7 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record GenerateAudioWorkflowPathsArguments(
+        Guid TrackId,
+        string TemporaryRootDirectory,
+        string SourceKey);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/GeneratePictureWorkflowPathsArguments.cs

@@ -0,0 +1,6 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record GeneratePictureWorkflowPathsArguments(
+        string TemporaryRootDirectory,
+        string SourceKey);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/MarkPlayListAsRemovingArguments.cs

@@ -0,0 +1,5 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    internal record MarkPlayListAsRemovingArguments(
+        Guid PlayListId);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/MarkTrackAsRemovingArguments.cs

@@ -0,0 +1,5 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    internal record MarkTrackAsRemovingArguments(
+        Guid TrackId);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/PublishPlayListPictureProcessingEventArguments.cs

@@ -0,0 +1,12 @@
+using Musify.Application.Shared;
+
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record PublishPlayListPictureProcessingEventArguments(
+        Guid PlayListId,
+        string Bucket,
+        string FinalPictureKey,
+        ImageSize Small,
+        ImageSize Medium,
+        ImageSize Large);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/PublishTrackProcessingEventsArguments.cs

@@ -0,0 +1,14 @@
+using Musify.Application.Shared;
+
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record PublishTrackProcessingEventsArguments(
+        Guid TrackId,
+        string Bucket,
+        string FinalPictureKey,
+        string FinalAudioKey,
+        string AudioDestinationFolderKey,
+        ImageSize Small,
+        ImageSize Medium,
+        ImageSize Large);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/RemoveFileFromBucketArguments.cs

@@ -0,0 +1,6 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record RemoveFileFromBucketArguments(
+        string Bucket,
+        string Key);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/ResizePictureLocalArguments.cs

@@ -0,0 +1,8 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record ResizePictureLocalArguments(
+        string SourceFilePathVariable,
+        string DestinationFilePathVariable,
+        int Width,
+        int Height);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/TranscodeAudioArguments.cs

@@ -0,0 +1,7 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record TranscodeAudioArguments(
+        Guid TrackId,
+        string SourceFilePathVariable,
+        string WorkingDirectoryVariable);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/TransferFilesToBucketArguments.cs

@@ -0,0 +1,7 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record TransferFilesToBucketArguments(
+        string DestinationBucket,
+        string SourceDirectoryVariable,
+        string DestinationKey);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/UpdatePlayListPictureArguments.cs

@@ -0,0 +1,9 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record UpdatePlayListPictureArguments(
+        Guid PlayListId,
+        string OriginalPictureKey,
+        string SmallPictureVariable,
+        string MediumPictureVariable,
+        string LargePictureVariable);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/UpdateTrackAudioArguments.cs

@@ -0,0 +1,6 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record UpdateTrackAudioArguments(
+        Guid TrackId,
+        string AudioFolderKey);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/UpdateTrackPictureArguments.cs

@@ -0,0 +1,9 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record UpdateTrackPictureArguments(
+        Guid TrackId,
+        string OriginalPictureKey,
+        string SmallPictureVariable,
+        string MediumPictureVariable,
+        string LargePictureVariable);
+}

backend/Musify.Infrastructure/MassTransit/Arguments/UploadFileToBucketArguments.cs

@@ -0,0 +1,7 @@
+namespace Musify.Infrastructure.MassTransit.Arguments
+{
+    public record UploadFileToBucketArguments(
+        string FilePathVariable,
+        string DestinationBucket,
+        string DestinationRoute);
+}

backend/Musify.Infrastructure/MassTransit/Consumers/CreatePlayListConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class CreatePlayListConsumer(
+        IBus bus,
+        PlayListPictureSourceRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<CreatePlayListResourcesEvent>
+    {
+        public const string QueueName = "create-playList";
+
+        public async Task Consume(ConsumeContext<CreatePlayListResourcesEvent> consumeContext)
+        {
+            var routingSlip = routingSlipBuilder
+                .Build(consumeContext.Message, consumeContext.CorrelationId)
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/CreateTrackConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class CreateTrackConsumer(
+        IBus bus,
+        CreateTrackRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<CreateTrackResourcesEvent>
+    {
+        public const string QueueName = "create-track";
+
+        public async Task Consume(ConsumeContext<CreateTrackResourcesEvent> consumeContext)
+        {
+            var routingSlip = routingSlipBuilder
+                .Build(consumeContext.Message, consumeContext.CorrelationId)
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/DeletePlayListConsumer.cs

@@ -0,0 +1,27 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class DeletePlayListConsumer(
+        IBus bus,
+        DeletePlayListRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<DeletePlayListEvent>
+    {
+        public const string QueueName = "delete-playList";
+
+        public async Task Consume(ConsumeContext<DeletePlayListEvent> consumeContext)
+        {
+            var routingSlip = (await routingSlipBuilder
+                    .BuildAsync(
+                        consumeContext.Message.PlayListId,
+                        consumeContext.Message.UserId,
+                        consumeContext.CorrelationId,
+                        consumeContext.CancellationToken))
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/DeleteTrackConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class DeleteTrackConsumer(
+        IBus bus,
+        DeleteTrackRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<DeleteTrackEvent>
+    {
+        public const string QueueName = "delete-track";
+
+        public async Task Consume(ConsumeContext<DeleteTrackEvent> consumeContext)
+        {
+            var routingSlip = (await routingSlipBuilder
+                    .BuildAsync(consumeContext.Message.TrackId, consumeContext.Message.UserId, consumeContext.CorrelationId, consumeContext.CancellationToken))
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/EndpointHelper.cs

@@ -0,0 +1,11 @@
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    internal static class EndpointHelper
+    {
+        internal static Uri BuildExecuteActivityUri(string endpointName) => new($"queue:{endpointName}_execute");
+
+        internal static Uri BuildCompensateActivityUri(string endpointName) => new($"queue:{endpointName}_compensate");
+
+        internal static Uri BuildConsumerUri(string endpointName) => new($"queue:{endpointName}");
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/RoutingSlipCleanUpConsumer.cs

@@ -0,0 +1,48 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Microsoft.Extensions.Logging;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class RoutingSlipCleanUpConsumer(
+        ILogger<RoutingSlipCleanUpConsumer> logger) :
+        IConsumer<RoutingSlipCompleted>,
+        IConsumer<RoutingSlipFaulted>
+    {
+        public const string QueueName = "routing-slip-events";
+
+        public Task Consume(ConsumeContext<RoutingSlipCompleted> consumeContext)
+            => DeleteFolder(consumeContext.Message.Variables);
+
+        public Task Consume(ConsumeContext<RoutingSlipFaulted> consumeContext)
+            => DeleteFolder(consumeContext.Message.Variables);
+
+        Task DeleteFolder(IDictionary<string, object> variables) 
+        {
+            if (!variables.TryGetValue(RoutingSlipVariableNames.Workflow.TemporalDirectory, out var pathObject))
+                return Task.CompletedTask;
+
+            var pathString = pathObject.ToString();
+
+            if (string.IsNullOrEmpty(pathString))
+                return Task.CompletedTask;
+
+            try
+            {
+                Directory.Delete(pathString, recursive: true);
+                logger.LogInformation("Deleted temporal directory at path {Path}", pathString);
+            }
+            catch (DirectoryNotFoundException directoryNotFoundException)
+            {
+                logger.LogWarning(directoryNotFoundException, "Temporal directory at path {Path} was not found for deletion", pathString);
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to delete temporal directory at path {Path}", pathString);
+                throw;
+            }
+
+            return Task.CompletedTask;
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/UpdatePlayListPictureConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class UpdatePlayListPictureConsumer(
+        IBus bus,
+        PictureWorkflowRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<UpdatePlayListPictureEvent>
+    {
+        public const string QueueName = "update-playList-picture";
+
+        public async Task Consume(ConsumeContext<UpdatePlayListPictureEvent> consumeContext)
+        {
+            var routingSlip = routingSlipBuilder
+                .Build(consumeContext.Message, consumeContext.CorrelationId)
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/UpdatePlayListPictureSourceConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class UpdatePlayListPictureSourceConsumer(
+        IBus bus,
+        PlayListPictureSourceRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<UpdatePlayListPictureSourceEvent>
+    {
+        public const string QueueName = "update-playList-picture-source";
+
+        public async Task Consume(ConsumeContext<UpdatePlayListPictureSourceEvent> consumeContext)
+        {
+            var routingSlip = routingSlipBuilder
+                .Build(consumeContext.Message, consumeContext.CorrelationId)
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/UpdateTrackAudioConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class UpdateTrackAudioConsumer(
+        IBus bus,
+        AudioWorkflowRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<UpdateTrackAudioEvent>
+    {
+        public const string QueueName = "update-track-audio";
+
+        public async Task Consume(ConsumeContext<UpdateTrackAudioEvent> consumeContext)
+        {
+            var routingSlip = routingSlipBuilder
+                .Build(consumeContext.Message, consumeContext.CorrelationId)
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/Consumers/UpdateTrackPictureConsumer.cs

@@ -0,0 +1,23 @@
+using MassTransit;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit.Consumers
+{
+    public class UpdateTrackPictureConsumer(
+        IBus bus,
+        PictureWorkflowRoutingSlipBuilder routingSlipBuilder)
+        : IConsumer<UpdateTrackPictureEvent>
+    {
+        public const string QueueName = "update-track-picture";
+
+        public async Task Consume(ConsumeContext<UpdateTrackPictureEvent> consumeContext)
+        {
+            var routingSlip = routingSlipBuilder
+                .Build(consumeContext.Message, consumeContext.CorrelationId)
+                .Build();
+
+            await bus.Execute(routingSlip);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/DependencyInjection/MassTransitDependencyInjection.Endpoints.cs

@@ -0,0 +1,91 @@
+using MassTransit;
+using Musify.Infrastructure.MassTransit.Consumers;
+using Musify.Infrastructure.Persistence;
+
+namespace Musify.Infrastructure.MassTransit
+{
+    public static partial class MassTransitDependencyInjection
+    {
+        static void ConfigureConsumerEndpoint<TConsumer>(
+            IRabbitMqBusFactoryConfigurator busFactoryConfigurator,
+            IBusRegistrationContext busRegistrationContext,
+            string queueName)
+            where TConsumer : class, IConsumer
+        {
+            busFactoryConfigurator.ReceiveEndpoint(queueName, endpointConfigurator =>
+            {
+                endpointConfigurator.UseMessageRetry(retryConfigurator =>
+                    retryConfigurator.Exponential(
+                        retryLimit: 5,
+                        minInterval: TimeSpan.FromSeconds(1),
+                        maxInterval: TimeSpan.FromSeconds(30),
+                        intervalDelta: TimeSpan.FromSeconds(2)));
+
+                endpointConfigurator.UseEntityFrameworkOutbox<Database>(busRegistrationContext);
+
+                endpointConfigurator.ConfigureConsumer<TConsumer>(busRegistrationContext);
+            });
+        }
+
+        static void ConfigureExecuteActivityEndpoint<TActivity, TArguments>(
+            IRabbitMqBusFactoryConfigurator busFactoryConfigurator,
+            IBusRegistrationContext busRegistrationContext,
+            string endpointName)
+            where TActivity : class, IExecuteActivity<TArguments>
+            where TArguments : class
+        {
+            busFactoryConfigurator.ReceiveEndpoint(MassTransitEndpointNames.ExecuteQueue(endpointName), endpointConfigurator =>
+            {
+                endpointConfigurator.UseMessageRetry(retryConfigurator =>
+                    retryConfigurator.Exponential(
+                        retryLimit: 5,
+                        minInterval: TimeSpan.FromSeconds(1),
+                        maxInterval: TimeSpan.FromSeconds(30),
+                        intervalDelta: TimeSpan.FromSeconds(2)));
+
+                endpointConfigurator.UseEntityFrameworkOutbox<Database>(busRegistrationContext);
+
+                endpointConfigurator.ExecuteActivityHost<TActivity, TArguments>(busRegistrationContext);
+            });
+        }
+
+        static void ConfigureActivityEndpoint<TActivity, TArguments, TLog>(
+            IRabbitMqBusFactoryConfigurator busFactoryConfigurator,
+            IBusRegistrationContext busRegistrationContext,
+            string endpointName)
+            where TActivity : class, IActivity<TArguments, TLog>
+            where TArguments : class
+            where TLog : class
+        {
+            busFactoryConfigurator.ReceiveEndpoint(MassTransitEndpointNames.ExecuteQueue(endpointName), endpointConfigurator =>
+            {
+                endpointConfigurator.UseMessageRetry(retryConfigurator =>
+                    retryConfigurator.Exponential(
+                        retryLimit: 5,
+                        minInterval: TimeSpan.FromSeconds(1),
+                        maxInterval: TimeSpan.FromSeconds(30),
+                        intervalDelta: TimeSpan.FromSeconds(2)));
+
+                endpointConfigurator.UseEntityFrameworkOutbox<Database>(busRegistrationContext);
+
+                endpointConfigurator.ExecuteActivityHost<TActivity, TArguments>(
+                    EndpointHelper.BuildCompensateActivityUri(endpointName),
+                    busRegistrationContext);
+            });
+
+            busFactoryConfigurator.ReceiveEndpoint(MassTransitEndpointNames.CompensateQueue(endpointName), endpointConfigurator =>
+            {
+                endpointConfigurator.UseMessageRetry(retryConfigurator =>
+                    retryConfigurator.Exponential(
+                        retryLimit: 5,
+                        minInterval: TimeSpan.FromSeconds(1),
+                        maxInterval: TimeSpan.FromSeconds(30),
+                        intervalDelta: TimeSpan.FromSeconds(2)));
+
+                endpointConfigurator.UseEntityFrameworkOutbox<Database>(busRegistrationContext);
+
+                endpointConfigurator.CompensateActivityHost<TActivity, TLog>(busRegistrationContext);
+            });
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/DependencyInjection/MassTransitDependencyInjection.Options.cs

@@ -0,0 +1,24 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+
+namespace Musify.Infrastructure.MassTransit
+{
+    public static partial class MassTransitDependencyInjection
+    {
+        static void RegisterValidatedOptions<TOptions>(
+            IServiceCollection services,
+            IConfiguration configuration,
+            string sectionName)
+            where TOptions : class
+        {
+            services
+                .AddOptionsWithValidateOnStart<TOptions>()
+                .Bind(configuration.GetRequiredSection(sectionName))
+                .ValidateDataAnnotations();
+
+            services.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<TOptions>>().Value);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/DependencyInjection/MassTransitDependencyInjection.Registration.cs

@@ -0,0 +1,212 @@
+using MassTransit;
+using Microsoft.Extensions.DependencyInjection;
+using Musify.Infrastructure.Configuration;
+using Musify.Infrastructure.MassTransit.Activities;
+using Musify.Infrastructure.MassTransit.Activities.Audio;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Activities.PlayLists;
+using Musify.Infrastructure.MassTransit.Activities.Tracks;
+using Musify.Infrastructure.MassTransit.Activities.UploadIntents;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+using Musify.Infrastructure.MassTransit.Logs;
+using Musify.Infrastructure.MassTransit.RoutingSlip.Builders;
+
+namespace Musify.Infrastructure.MassTransit
+{
+    public static partial class MassTransitDependencyInjection
+    {
+        static void RegisterRoutingSlipBuilders(IServiceCollection services)
+        {
+            services.AddScoped<AudioWorkflowRoutingSlipBuilder>();
+            services.AddScoped<PictureWorkflowRoutingSlipBuilder>();
+            services.AddScoped<DeleteTrackRoutingSlipBuilder>();
+            services.AddScoped<DeletePlayListRoutingSlipBuilder>();
+            services.AddScoped<CreateTrackRoutingSlipBuilder>();
+            services.AddScoped<PlayListPictureSourceRoutingSlipBuilder>();
+        }
+
+        static void RegisterConsumersAndActivities(IBusRegistrationConfigurator options)
+        {
+            options.AddConsumer<UpdatePlayListPictureConsumer>();
+            options.AddConsumer<UpdateTrackPictureConsumer>();
+            options.AddConsumer<RoutingSlipCleanUpConsumer>();
+            options.AddConsumer<UpdateTrackAudioConsumer>();
+            options.AddConsumer<DeleteTrackConsumer>();
+            options.AddConsumer<DeletePlayListConsumer>();
+            options.AddConsumer<CreateTrackConsumer>();
+            options.AddConsumer<CreatePlayListConsumer>();
+            options.AddConsumer<UpdatePlayListPictureSourceConsumer>();
+
+            options.AddExecuteActivity<RemoveFileFromBucketActivity, RemoveFileFromBucketArguments>();
+            options.AddExecuteActivity<GenerateAudioWorkflowPathsActivity, GenerateAudioWorkflowPathsArguments>();
+            options.AddExecuteActivity<GeneratePictureWorkflowPathsActivity, GeneratePictureWorkflowPathsArguments>();
+            options.AddExecuteActivity<MarkTrackAsRemovingActivity, MarkTrackAsRemovingArguments>();
+            options.AddExecuteActivity<DeleteTrackFromDbActivity, DeleteTrackFromDbArguments>();
+            options.AddExecuteActivity<MarkPlayListAsRemovingActivity, MarkPlayListAsRemovingArguments>();
+            options.AddExecuteActivity<DeletePlayListFromDbActivity, DeletePlayListFromDbArguments>();
+            options.AddExecuteActivity<PublishTrackProcessingEventsActivity, PublishTrackProcessingEventsArguments>();
+            options.AddExecuteActivity<PublishPlayListPictureProcessingEventActivity, PublishPlayListPictureProcessingEventArguments>();
+
+            options.AddActivity<ResizePictureActivity, ResizePictureLocalArguments, ResizePictureLog>();
+            options.AddActivity<UpdatePlayListPictureActivity, UpdatePlayListPictureArguments, UpdatePlayListPictureLog>();
+            options.AddActivity<UpdateTrackPictureActivity, UpdateTrackPictureArguments, UpdateTrackPictureLog>();
+            options.AddActivity<DownloadFileFromBucketActivity, DownloadFileFromBucketArguments, DownloadFileFromBucketLog>();
+            options.AddActivity<TranscodeAudioActivity, TranscodeAudioArguments, TranscodeAudioLog>();
+            options.AddActivity<TransferFilesToBucketActivity, TransferFilesToBucketArguments, TransferFilesToBucketLog>();
+            options.AddActivity<UpdateTrackAudioActivity, UpdateTrackAudioArguments, UpdateTrackAudioLog>();
+            options.AddActivity<UploadFileToBucketActivity, UploadFileToBucketArguments, UploadFileToBucketLog>();
+            options.AddActivity<CopyFileInBucketActivity, CopyFileInBucketArguments, CopyFileInBucketLog>();
+            options.AddActivity<ConsumeUploadIntentsActivity, ConsumeUploadIntentsArguments, ConsumeUploadIntentsLog>();
+        }
+
+        static void ConfigureRabbitMqWorkerEndpoints(
+            IBusRegistrationContext busRegistrationContext,
+            IRabbitMqBusFactoryConfigurator busFactoryConfigurator)
+        {
+            ConfigureRabbitMqHost(
+                busFactoryConfigurator,
+                busRegistrationContext.GetRequiredService<MassTransitConfiguration>());
+
+            ConfigureConsumerEndpoint<UpdatePlayListPictureConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdatePlayListPictureConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<UpdateTrackAudioConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdateTrackAudioConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<UpdateTrackPictureConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdateTrackPictureConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<DeleteTrackConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                DeleteTrackConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<DeletePlayListConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                DeletePlayListConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<CreateTrackConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                CreateTrackConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<CreatePlayListConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                CreatePlayListConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<UpdatePlayListPictureSourceConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdatePlayListPictureSourceConsumer.QueueName);
+
+            ConfigureConsumerEndpoint<RoutingSlipCleanUpConsumer>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                RoutingSlipCleanUpConsumer.QueueName);
+
+            ConfigureExecuteActivityEndpoint<RemoveFileFromBucketActivity, RemoveFileFromBucketArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                RemoveFileFromBucketActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<GenerateAudioWorkflowPathsActivity, GenerateAudioWorkflowPathsArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                GenerateAudioWorkflowPathsActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<GeneratePictureWorkflowPathsActivity, GeneratePictureWorkflowPathsArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                GeneratePictureWorkflowPathsActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<MarkTrackAsRemovingActivity, MarkTrackAsRemovingArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                MarkTrackAsRemovingActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<DeleteTrackFromDbActivity, DeleteTrackFromDbArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                DeleteTrackFromDbActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<MarkPlayListAsRemovingActivity, MarkPlayListAsRemovingArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                MarkPlayListAsRemovingActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<DeletePlayListFromDbActivity, DeletePlayListFromDbArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                DeletePlayListFromDbActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<PublishTrackProcessingEventsActivity, PublishTrackProcessingEventsArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                PublishTrackProcessingEventsActivity.ExecuteEndpointName);
+
+            ConfigureExecuteActivityEndpoint<PublishPlayListPictureProcessingEventActivity, PublishPlayListPictureProcessingEventArguments>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                PublishPlayListPictureProcessingEventActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<ResizePictureActivity, ResizePictureLocalArguments, ResizePictureLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                ResizePictureActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<UpdatePlayListPictureActivity, UpdatePlayListPictureArguments, UpdatePlayListPictureLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdatePlayListPictureActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<UpdateTrackPictureActivity, UpdateTrackPictureArguments, UpdateTrackPictureLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdateTrackPictureActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<DownloadFileFromBucketActivity, DownloadFileFromBucketArguments, DownloadFileFromBucketLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                DownloadFileFromBucketActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<TranscodeAudioActivity, TranscodeAudioArguments, TranscodeAudioLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                TranscodeAudioActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<TransferFilesToBucketActivity, TransferFilesToBucketArguments, TransferFilesToBucketLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                TransferFilesToBucketActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<UpdateTrackAudioActivity, UpdateTrackAudioArguments, UpdateTrackAudioLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UpdateTrackAudioActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<UploadFileToBucketActivity, UploadFileToBucketArguments, UploadFileToBucketLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                UploadFileToBucketActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<CopyFileInBucketActivity, CopyFileInBucketArguments, CopyFileInBucketLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                CopyFileInBucketActivity.ExecuteEndpointName);
+
+            ConfigureActivityEndpoint<ConsumeUploadIntentsActivity, ConsumeUploadIntentsArguments, ConsumeUploadIntentsLog>(
+                busFactoryConfigurator,
+                busRegistrationContext,
+                ConsumeUploadIntentsActivity.ExecuteEndpointName);
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/DependencyInjection/MassTransitDependencyInjection.cs

@@ -0,0 +1,85 @@
+using MassTransit;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.Configuration;
+using Musify.Infrastructure.Persistence;
+
+namespace Musify.Infrastructure.MassTransit
+{
+    public static partial class MassTransitDependencyInjection
+    {
+        public static IServiceCollection AddMassTransitClient(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            RegisterValidatedOptions<MassTransitConfiguration>(
+                serviceDescriptors,
+                configuration,
+                MassTransitConfiguration.SectionName);
+
+            serviceDescriptors.AddScoped<IEventBus, MassTransitEventBus>();
+            serviceDescriptors.AddMassTransit(options =>
+            {
+                options.AddEntityFrameworkOutbox<Database>(outbox =>
+                {
+                    outbox.UsePostgres();
+                    outbox.UseBusOutbox();
+
+                    outbox.QueryDelay = TimeSpan.FromSeconds(1);
+                    outbox.DuplicateDetectionWindow = TimeSpan.FromMinutes(30);
+                });
+
+                options.UsingRabbitMq((busRegistrationContext, busFactoryConfigurator) =>
+                    ConfigureRabbitMqHost(
+                        busFactoryConfigurator,
+                        busRegistrationContext.GetRequiredService<MassTransitConfiguration>()));
+            } );
+
+            return serviceDescriptors;
+        }
+
+        public static IServiceCollection AddMassTransitConsumers(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            RegisterValidatedOptions<MassTransitConfiguration>(
+                serviceDescriptors,
+                configuration,
+                MassTransitConfiguration.SectionName);
+
+            RegisterValidatedOptions<WorkerConfiguration>(
+                serviceDescriptors,
+                configuration,
+                WorkerConfiguration.SectionName);
+
+            RegisterRoutingSlipBuilders(serviceDescriptors);
+
+            serviceDescriptors.AddMassTransit(options =>
+            {
+                options.AddEntityFrameworkOutbox<Database>(outbox =>
+                {
+                    outbox.UsePostgres();
+                    outbox.UseBusOutbox();
+
+                    outbox.QueryDelay = TimeSpan.FromSeconds(1);
+                    outbox.DuplicateDetectionWindow = TimeSpan.FromMinutes(30);
+                });
+
+                RegisterConsumersAndActivities(options);
+
+                options.UsingRabbitMq((busRegistrationContext, busFactoryConfigurator) =>
+                    ConfigureRabbitMqWorkerEndpoints(busRegistrationContext, busFactoryConfigurator));
+            } );
+
+            return serviceDescriptors;
+        }
+
+        static void ConfigureRabbitMqHost(
+            IRabbitMqBusFactoryConfigurator busFactoryConfigurator,
+            MassTransitConfiguration massTransitConfiguration)
+        {
+            busFactoryConfigurator.Host(massTransitConfiguration.Address, options =>
+            {
+                options.Username(massTransitConfiguration.Username);
+                options.Password(massTransitConfiguration.Password);
+            } );
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/DependencyInjection/MassTransitEndpointNames.cs

@@ -0,0 +1,9 @@
+namespace Musify.Infrastructure.MassTransit
+{
+    internal static class MassTransitEndpointNames
+    {
+        internal static string ExecuteQueue(string endpointName) => $"{endpointName}_execute";
+
+        internal static string CompensateQueue(string endpointName) => $"{endpointName}_compensate";
+    }
+}

backend/Musify.Infrastructure/MassTransit/Logs/ConsumeUploadIntentsLog.cs

@@ -0,0 +1,5 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record ConsumeUploadIntentsLog(
+        Guid[] IntentIds);
+}

backend/Musify.Infrastructure/MassTransit/Logs/CopyFileInBucketLog.cs

@@ -0,0 +1,6 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record CopyFileInBucketLog(
+        string DestinationBucket,
+        string DestinationKey);
+}

backend/Musify.Infrastructure/MassTransit/Logs/DownloadFileFromBucketLog.cs

@@ -0,0 +1,7 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record DownloadFileFromBucketLog(
+        string Bucket,
+        string Key,
+        string DestinationFilePath);
+}

backend/Musify.Infrastructure/MassTransit/Logs/GeneratePictureWorkflowPathsLog.cs

@@ -0,0 +1,4 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record GeneratePictureWorkflowPathsLog(string WorkingDirectory);
+}

backend/Musify.Infrastructure/MassTransit/Logs/ResizePictureLog.cs

@@ -0,0 +1,4 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record ResizePictureLog(string DestinationFilePath);
+}

backend/Musify.Infrastructure/MassTransit/Logs/TranscodeAudioLog.cs

@@ -0,0 +1,4 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record TranscodeAudioLog(string WorkingDirectory);
+}

backend/Musify.Infrastructure/MassTransit/Logs/TransferFilesToBucketLog.cs

@@ -0,0 +1,4 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record TransferFilesToBucketLog(string DestinationBucket, string[] UploadedKeys);
+}

backend/Musify.Infrastructure/MassTransit/Logs/UpdatePlayListPictureLog.cs

@@ -0,0 +1,9 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record UpdatePlayListPictureLog(
+        Guid PlayListId,
+        string PreviousOriginalPictureKey,
+        string PreviousSmallPictureKey,
+        string PreviousMediumPictureKey,
+        string PreviousLargePictureKey);
+}

backend/Musify.Infrastructure/MassTransit/Logs/UpdateTrackAudioLog.cs

@@ -0,0 +1,6 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record UpdateTrackAudioLog(
+        Guid TrackId,
+        string? PreviousAudioFolderName);
+}

backend/Musify.Infrastructure/MassTransit/Logs/UpdateTrackPictureLog.cs

@@ -0,0 +1,9 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record UpdateTrackPictureLog(
+        Guid TrackId,
+        string PreviousOriginalPictureKey,
+    string? PreviousSmallPictureKey,
+    string? PreviousMediumPictureKey,
+    string? PreviousLargePictureKey);
+}

backend/Musify.Infrastructure/MassTransit/Logs/UploadFileToBucketLog.cs

@@ -0,0 +1,4 @@
+namespace Musify.Infrastructure.MassTransit.Logs
+{
+    public record UploadFileToBucketLog(string DestinationBucket, string DestinationKey);
+}

backend/Musify.Infrastructure/MassTransit/MassTransitEventBus.cs

@@ -0,0 +1,16 @@
+using MassTransit;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.MassTransit
+{
+    public class MassTransitEventBus(IPublishEndpoint publishEndpoint)
+        : IEventBus
+    {
+        public async Task PublishAsync<T>(T message, CancellationToken cancellationToken) where T : class
+        {
+            ArgumentNullException.ThrowIfNull(message, nameof(message));
+
+            await publishEndpoint.Publish(message, cancellationToken);
+        }
+    }
+}

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

@@ -0,0 +1,51 @@
+namespace Musify.Infrastructure.MassTransit.RoutingSlip
+{
+    internal static class ActivityNames
+    {
+        internal const string MarkTrackAsRemoving = "MarkTrackAsRemoving";
+        internal const string DeleteTrackFromDb = "DeleteTrackFromDb";
+        internal const string MarkPlayListAsRemoving = "MarkPlayListAsRemoving";
+        internal const string DeletePlayListFromDb = "DeletePlayListFromDb";
+
+        internal const string GenerateAudioWorkflowPaths = "GenerateAudioWorkflowPaths";
+        internal const string GeneratePictureWorkflowPaths = "GeneratePictureWorkflowPaths";
+
+        internal const string DownloadFile = "DownloadFile";
+
+        internal const string TranscodeAudio = "TranscodeAudio";
+
+        internal const string ResizeSmall = "ResizeSmall";
+        internal const string ResizeMedium = "ResizeMedium";
+        internal const string ResizeLarge = "ResizeLarge";
+
+        internal const string UploadSmall = "UploadSmall";
+        internal const string UploadMedium = "UploadMedium";
+        internal const string UploadLarge = "UploadLarge";
+
+        internal const string TransferFiles = "TransferFiles";
+
+        internal const string UpdateTrackPicture = "UpdateTrackPicture";
+        internal const string UpdatePlayListPicture = "UpdatePlayListPicture";
+        internal const string UpdateTrackAudio = "UpdateTrackAudio";
+
+        internal const string CopyPictureToFinal = "CopyPictureToFinal";
+        internal const string CopyAudioToFinal = "CopyAudioToFinal";
+
+        internal const string ConsumeUploadIntents = "ConsumeUploadIntents";
+
+        internal const string PublishTrackProcessingEvents = "PublishTrackProcessingEvents";
+        internal const string PublishPlayListPictureProcessingEvent = "PublishPlayListPictureProcessingEvent";
+
+        internal const string RemoveTrackOriginalPicture = "RemoveTrackOriginalPicture";
+        internal const string RemoveTrackSmallPicture = "RemoveTrackSmallPicture";
+        internal const string RemoveTrackMediumPicture = "RemoveTrackMediumPicture";
+        internal const string RemoveTrackLargePicture = "RemoveTrackLargePicture";
+        internal const string RemoveTrackOriginalAudio = "RemoveTrackOriginalAudio";
+        internal const string RemoveTrackProcessedAudio = "RemoveTrackProcessedAudio";
+
+        internal const string RemovePlayListOriginalPicture = "RemovePlayListOriginalPicture";
+        internal const string RemovePlayListSmallPicture = "RemovePlayListSmallPicture";
+        internal const string RemovePlayListMediumPicture = "RemovePlayListMediumPicture";
+        internal const string RemovePlayListLargePicture = "RemovePlayListLargePicture";
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/AudioWorkflowRoutingSlipBuilder.cs

@@ -0,0 +1,66 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Musify.Application.Events;
+using Musify.Infrastructure.Configuration;
+using Musify.Infrastructure.MassTransit.Activities.Audio;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Activities;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+
+namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
+{
+    public class AudioWorkflowRoutingSlipBuilder(WorkerConfiguration workerConfiguration)
+    {
+        public RoutingSlipBuilder Build(UpdateTrackAudioEvent 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.SourceKey));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.DownloadFile,
+                EndpointHelper.BuildExecuteActivityUri(DownloadFileFromBucketActivity.ExecuteEndpointName),
+                new DownloadFileFromBucketArguments(
+                    message.SourceBucket,
+                    message.SourceKey,
+                    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.DestinationBucket,
+                    RoutingSlipVariableNames.Audio.TranscodedDirectory,
+                    message.DestinationFolderKey));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.UpdateTrackAudio,
+                EndpointHelper.BuildExecuteActivityUri(UpdateTrackAudioActivity.ExecuteEndpointName),
+                new UpdateTrackAudioArguments(
+                    message.TrackId,
+                    message.DestinationFolderKey));
+
+            return routingSlipBuilder;
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/CreateTrackRoutingSlipBuilder.cs

@@ -0,0 +1,63 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Activities.Tracks;
+using Musify.Infrastructure.MassTransit.Activities.UploadIntents;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+
+namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
+{
+    public class CreateTrackRoutingSlipBuilder
+    {
+        public RoutingSlipBuilder Build(CreateTrackResourcesEvent 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.CopyPictureToFinal,
+                EndpointHelper.BuildExecuteActivityUri(CopyFileInBucketActivity.ExecuteEndpointName),
+                new CopyFileInBucketArguments(
+                    message.Bucket,
+                    message.PictureSourceKey,
+                    message.Bucket,
+                    message.PictureDestinationKey));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.CopyAudioToFinal,
+                EndpointHelper.BuildExecuteActivityUri(CopyFileInBucketActivity.ExecuteEndpointName),
+                new CopyFileInBucketArguments(
+                    message.Bucket,
+                    message.AudioSourceKey,
+                    message.Bucket,
+                    message.AudioDestinationKey));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.ConsumeUploadIntents,
+                EndpointHelper.BuildExecuteActivityUri(ConsumeUploadIntentsActivity.ExecuteEndpointName),
+                new ConsumeUploadIntentsArguments(
+                    [message.PictureIntentId, message.AudioIntentId]));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.PublishTrackProcessingEvents,
+                EndpointHelper.BuildExecuteActivityUri(PublishTrackProcessingEventsActivity.ExecuteEndpointName),
+                new PublishTrackProcessingEventsArguments(
+                    message.TrackId,
+                    message.Bucket,
+                    message.PictureDestinationKey,
+                    message.AudioDestinationKey,
+                    message.AudioProcessedFolderKey,
+                    message.Small,
+                    message.Medium,
+                    message.Large));
+
+            return routingSlipBuilder;
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/DeletePlayListRoutingSlipBuilder.cs

@@ -0,0 +1,94 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Microsoft.EntityFrameworkCore;
+using Musify.Application.Configuration;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Activities.PlayLists;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
+{
+    public class DeletePlayListRoutingSlipBuilder(
+        IDatabase database,
+        PlayListConfiguration playListConfiguration,
+        ApplicationStorageConfiguration storageConfiguration)
+    {
+        public async Task<RoutingSlipBuilder> BuildAsync(
+            Guid playListId,
+            long userId,
+            Guid? correlationId,
+            CancellationToken cancellationToken)
+        {
+            var routingSlipBuilder = new RoutingSlipBuilder(NewId.NextGuid());
+            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.CorrelationId, correlationId ?? Guid.Empty);
+
+            routingSlipBuilder.AddSubscription(
+                EndpointHelper.BuildConsumerUri(RoutingSlipCleanUpConsumer.QueueName),
+                RoutingSlipEvents.Completed | RoutingSlipEvents.Faulted);
+
+            var playList = await database.PlayLists
+                .AsNoTracking()
+                .SingleOrDefaultAsync(p => p.Id == playListId, cancellationToken);
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.MarkPlayListAsRemoving,
+                EndpointHelper.BuildExecuteActivityUri(MarkPlayListAsRemovingActivity.ExecuteEndpointName),
+                new MarkPlayListAsRemovingArguments(playListId));
+
+            if (playList is not null)
+            {
+                var bucket = storageConfiguration.Bucket;
+                var routes = playListConfiguration.Routes;
+
+                if (playList.OriginalPictureName != routes.PresetOriginalPicture)
+                {
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemovePlayListOriginalPicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            routes.BuildOriginalPicturePath(userId, playList.OriginalPictureName)));
+                }
+
+                if (playList.SmallPictureName != routes.PresetSmallPicture)
+                {
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemovePlayListSmallPicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            routes.BuildSmallPicturePath(playList.SmallPictureName)));
+                }
+
+                if (playList.MediumPictureName != routes.PresetMediumPicture)
+                {
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemovePlayListMediumPicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            routes.BuildMediumPicturePath(playList.MediumPictureName)));
+                }
+
+                if (playList.LargePictureName != routes.PresetLargePicture)
+                {
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemovePlayListLargePicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            routes.BuildLargePicturePath(playList.LargePictureName)));
+                }
+            }
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.DeletePlayListFromDb,
+                EndpointHelper.BuildExecuteActivityUri(DeletePlayListFromDbActivity.ExecuteEndpointName),
+                new DeletePlayListFromDbArguments(playListId));
+
+            return routingSlipBuilder;
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/DeleteTrackRoutingSlipBuilder.cs

@@ -0,0 +1,101 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Microsoft.EntityFrameworkCore;
+using Musify.Application.Configuration;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Activities.Tracks;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
+{
+    public class DeleteTrackRoutingSlipBuilder(
+        IDatabase database,
+        TrackConfiguration trackConfiguration,
+        ApplicationStorageConfiguration storageConfiguration)
+    {
+        public async Task<RoutingSlipBuilder> BuildAsync(
+            Guid trackId,
+            long userId,
+            Guid? correlationId,
+            CancellationToken cancellationToken)
+        {
+            var routingSlipBuilder = new RoutingSlipBuilder(NewId.NextGuid());
+            routingSlipBuilder.AddVariable(RoutingSlipVariableNames.Workflow.CorrelationId, correlationId ?? Guid.Empty);
+
+            routingSlipBuilder.AddSubscription(
+                EndpointHelper.BuildConsumerUri(RoutingSlipCleanUpConsumer.QueueName),
+                RoutingSlipEvents.Completed | RoutingSlipEvents.Faulted);
+
+            var track = await database.Tracks
+                .AsNoTracking()
+                .SingleOrDefaultAsync(t => t.Id == trackId, cancellationToken);
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.MarkTrackAsRemoving,
+                EndpointHelper.BuildExecuteActivityUri(MarkTrackAsRemovingActivity.ExecuteEndpointName),
+                new MarkTrackAsRemovingArguments(trackId));
+
+            if (track is not null)
+            {
+                var bucket = storageConfiguration.Bucket;
+
+                routingSlipBuilder.AddActivity(
+                    ActivityNames.RemoveTrackOriginalPicture,
+                    EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                    new RemoveFileFromBucketArguments(
+                        bucket,
+                        trackConfiguration.Routes.BuildOriginalPicturePath(userId, track.OriginalPictureName)));
+
+                if (track.IsPicturesProcessed)
+                {
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemoveTrackSmallPicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            trackConfiguration.Routes.BuildSmallPicturePath(track.SmallPictureName)));
+
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemoveTrackMediumPicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            trackConfiguration.Routes.BuildMediumPicturePath(track.MediumPictureName)));
+
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemoveTrackLargePicture,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            trackConfiguration.Routes.BuildLargePicturePath(track.LargePictureName)));
+                }
+
+                routingSlipBuilder.AddActivity(
+                    ActivityNames.RemoveTrackOriginalAudio,
+                    EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                    new RemoveFileFromBucketArguments(
+                        bucket,
+                        trackConfiguration.Routes.BuildOriginalAudioPath(userId, track.OriginalAudioName)));
+
+                if (track.IsAudioProcessed)
+                {
+                    routingSlipBuilder.AddActivity(
+                        ActivityNames.RemoveTrackProcessedAudio,
+                        EndpointHelper.BuildExecuteActivityUri(RemoveFileFromBucketActivity.ExecuteEndpointName),
+                        new RemoveFileFromBucketArguments(
+                            bucket,
+                            trackConfiguration.Routes.BuildProcessedAudioPath(track.AudioFolderName)));
+                }
+            }
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.DeleteTrackFromDb,
+                EndpointHelper.BuildExecuteActivityUri(DeleteTrackFromDbActivity.ExecuteEndpointName),
+                new DeleteTrackFromDbArguments(trackId));
+
+            return routingSlipBuilder;
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/PictureWorkflowRoutingSlipBuilder.cs

@@ -0,0 +1,144 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Musify.Application.Shared;
+using Musify.Application.Events;
+using Musify.Infrastructure.Configuration;
+using Musify.Infrastructure.MassTransit.Activities;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+
+namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
+{
+    public class PictureWorkflowRoutingSlipBuilder(WorkerConfiguration workerConfiguration)
+    {
+        public RoutingSlipBuilder Build(UpdateTrackPictureEvent message, Guid? correlationId)
+        {
+            var routingSlipBuilder = BuildPictureWorkflow(
+                message.Bucket,
+                message.SourceKey,
+                message.Small,
+                message.Medium,
+                message.Large,
+                correlationId);
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.UpdateTrackPicture,
+                EndpointHelper.BuildExecuteActivityUri(UpdateTrackPictureActivity.ExecuteEndpointName),
+                new UpdateTrackPictureArguments(
+                    message.TrackId,
+                    message.SourceKey,
+                    RoutingSlipVariableNames.Picture.SmallResizedFilePath,
+                    RoutingSlipVariableNames.Picture.MediumResizedFilePath,
+                    RoutingSlipVariableNames.Picture.LargeResizedFilePath));
+
+            return routingSlipBuilder;
+        }
+
+        public RoutingSlipBuilder Build(UpdatePlayListPictureEvent message, Guid? correlationId)
+        {
+            var routingSlipBuilder = BuildPictureWorkflow(
+                message.Bucket,
+                message.SourceKey,
+                message.Small,
+                message.Medium,
+                message.Large,
+                correlationId);
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.UpdatePlayListPicture,
+                EndpointHelper.BuildExecuteActivityUri(UpdatePlayListPictureActivity.ExecuteEndpointName),
+                new UpdatePlayListPictureArguments(
+                    message.PlayListId,
+                    message.SourceKey,
+                    RoutingSlipVariableNames.Picture.SmallResizedFilePath,
+                    RoutingSlipVariableNames.Picture.MediumResizedFilePath,
+                    RoutingSlipVariableNames.Picture.LargeResizedFilePath));
+
+            return routingSlipBuilder;
+        }
+
+        RoutingSlipBuilder BuildPictureWorkflow(
+            string bucket,
+            string sourceKey,
+            ImageSize small,
+            ImageSize medium,
+            ImageSize large,
+            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,
+                    sourceKey));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.DownloadFile,
+                EndpointHelper.BuildExecuteActivityUri(DownloadFileFromBucketActivity.ExecuteEndpointName),
+                new DownloadFileFromBucketArguments(
+                    bucket,
+                    sourceKey,
+                    RoutingSlipVariableNames.Picture.OriginalFilePath));
+
+            AddResizeActivity(
+                routingSlipBuilder,
+                ActivityNames.ResizeSmall,
+                ActivityNames.UploadSmall,
+                bucket,
+                RoutingSlipVariableNames.Picture.SmallResizedFilePath,
+                small);
+
+            AddResizeActivity(
+                routingSlipBuilder,
+                ActivityNames.ResizeMedium,
+                ActivityNames.UploadMedium,
+                bucket,
+                RoutingSlipVariableNames.Picture.MediumResizedFilePath,
+                medium);
+
+            AddResizeActivity(
+                routingSlipBuilder,
+                ActivityNames.ResizeLarge,
+                ActivityNames.UploadLarge,
+                bucket,
+                RoutingSlipVariableNames.Picture.LargeResizedFilePath,
+                large);
+
+            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));
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/Builders/PlayListPictureSourceRoutingSlipBuilder.cs

@@ -0,0 +1,85 @@
+using MassTransit;
+using MassTransit.Courier.Contracts;
+using Musify.Application.Shared;
+using Musify.Application.Events;
+using Musify.Infrastructure.MassTransit.Activities.Files;
+using Musify.Infrastructure.MassTransit.Activities.PlayLists;
+using Musify.Infrastructure.MassTransit.Activities.UploadIntents;
+using Musify.Infrastructure.MassTransit.Arguments;
+using Musify.Infrastructure.MassTransit.Consumers;
+
+namespace Musify.Infrastructure.MassTransit.RoutingSlip.Builders
+{
+    public class PlayListPictureSourceRoutingSlipBuilder
+    {
+        public RoutingSlipBuilder Build(CreatePlayListResourcesEvent message, Guid? correlationId)
+            => BuildSlip(
+                message.PlayListId,
+                message.PictureIntentId,
+                message.Bucket,
+                message.PictureSourceKey,
+                message.PictureDestinationKey,
+                message.Small,
+                message.Medium,
+                message.Large,
+                correlationId);
+
+        public RoutingSlipBuilder Build(UpdatePlayListPictureSourceEvent message, Guid? correlationId)
+            => BuildSlip(
+                message.PlayListId,
+                message.PictureIntentId,
+                message.Bucket,
+                message.PictureSourceKey,
+                message.PictureDestinationKey,
+                message.Small,
+                message.Medium,
+                message.Large,
+                correlationId);
+
+        static RoutingSlipBuilder BuildSlip(
+            Guid playListId,
+            Guid pictureIntentId,
+            string bucket,
+            string pictureSourceKey,
+            string pictureDestinationKey,
+            ImageSize small,
+            ImageSize medium,
+            ImageSize large,
+            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.CopyPictureToFinal,
+                EndpointHelper.BuildExecuteActivityUri(CopyFileInBucketActivity.ExecuteEndpointName),
+                new CopyFileInBucketArguments(
+                    bucket,
+                    pictureSourceKey,
+                    bucket,
+                    pictureDestinationKey));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.ConsumeUploadIntents,
+                EndpointHelper.BuildExecuteActivityUri(ConsumeUploadIntentsActivity.ExecuteEndpointName),
+                new ConsumeUploadIntentsArguments([pictureIntentId]));
+
+            routingSlipBuilder.AddActivity(
+                ActivityNames.PublishPlayListPictureProcessingEvent,
+                EndpointHelper.BuildExecuteActivityUri(PublishPlayListPictureProcessingEventActivity.ExecuteEndpointName),
+                new PublishPlayListPictureProcessingEventArguments(
+                    playListId,
+                    bucket,
+                    pictureDestinationKey,
+                    small,
+                    medium,
+                    large));
+
+            return routingSlipBuilder;
+        }
+    }
+}

backend/Musify.Infrastructure/MassTransit/RoutingSlip/RoutingSlipVariableNames.cs

@@ -0,0 +1,25 @@
+namespace Musify.Infrastructure.MassTransit
+{
+    internal static class RoutingSlipVariableNames
+    {
+        internal static class Workflow
+        {
+            internal const string TemporalDirectory = "Workflow.TemporalDirectory";
+            internal const string CorrelationId = "Workflow.CorrelationId";
+        }
+
+        internal static class Audio
+        {
+            internal const string SourceFilePath = "Audio.SourceFilePath";
+            internal const string TranscodedDirectory = "Audio.TranscodedDirectory";
+        }
+
+        internal static class Picture
+        {
+            internal const string OriginalFilePath = "Picture.OriginalFilePath";
+            internal const string SmallResizedFilePath = "Picture.SmallResizedFilePath";
+            internal const string MediumResizedFilePath = "Picture.MediumResizedFilePath";
+            internal const string LargeResizedFilePath = "Picture.LargeResizedFilePath";
+        }
+    }
+}

backend/Musify.Infrastructure/Musify.Infrastructure.csproj

@@ -0,0 +1,42 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <UserSecretsId>07d419fc-9ade-471a-bc0e-aebece785b30</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AWSSDK.S3" />
+    <PackageReference Include="MassTransit" />
+    <PackageReference Include="MassTransit.EntityFrameworkCore" />
+    <PackageReference Include="MassTransit.RabbitMQ" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" />
+    <PackageReference Include="Microsoft.IdentityModel.JsonWebTokens" />
+    <PackageReference Include="MimeMapping" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.EntityFrameworkCore" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Http" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Process" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" />
+    <PackageReference Include="SixLabors.ImageSharp" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Musify.Application\Musify.Application.csproj" />
+    <ProjectReference Include="..\Musify.Domain\Musify.Domain.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Persistence\Migrations\" />
+  </ItemGroup>
+
+</Project>

backend/Musify.Infrastructure/Observability/OpenTelemetryDependencyInjection.cs

@@ -0,0 +1,60 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Musify.Infrastructure.Configuration;
+using OpenTelemetry.Exporter;
+using OpenTelemetry.Logs;
+using OpenTelemetry.Metrics;
+using OpenTelemetry.Resources;
+using OpenTelemetry.Trace;
+
+namespace Musify.Infrastructure.Observability
+{
+    public static class OpenTelemetryDependencyInjection
+    {
+        public static IServiceCollection AddObservability(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors
+                .AddOptionsWithValidateOnStart<OpenTelemetryConfiguration>()
+                .Bind(configuration.GetRequiredSection(OpenTelemetryConfiguration.SectionName))
+                .ValidateDataAnnotations();
+
+            serviceDescriptors.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<OpenTelemetryConfiguration>>().Value);
+
+            serviceDescriptors
+                .AddOptions<OtlpExporterOptions>()
+                .Configure<OpenTelemetryConfiguration>((exporterOptions, openTelemetryConfiguration) =>
+                {
+                    exporterOptions.Endpoint = new Uri(openTelemetryConfiguration.OtlpEndpoint);
+                } );
+
+            serviceDescriptors
+                .AddOpenTelemetry()
+                .ConfigureResource(resource =>
+                {
+                    resource.AddService("Musify");
+                } )
+                .WithTracing(tracing =>
+                    tracing.AddSource("MassTransit")
+                        .AddAspNetCoreInstrumentation()
+                        .AddHttpClientInstrumentation()
+                        .AddEntityFrameworkCoreInstrumentation()
+                        .AddOtlpExporter()
+                )
+                .WithMetrics(metrics =>
+                    metrics.AddMeter("MassTransit")
+                        .AddAspNetCoreInstrumentation()
+                        .AddHttpClientInstrumentation()
+                        .AddRuntimeInstrumentation()
+                        .AddProcessInstrumentation()
+                        .AddOtlpExporter()
+                )
+                .WithLogging(logging =>
+                    logging.AddOtlpExporter()
+                );
+
+            return serviceDescriptors;
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/AuditableEntityInterceptor.cs

@@ -0,0 +1,43 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using Musify.Domain.Abstractions;
+
+namespace Musify.Infrastructure.Persistence
+{
+    public sealed class AuditableEntityInterceptor : SaveChangesInterceptor
+    {
+        public override InterceptionResult<int> SavingChanges(DbContextEventData eventData, InterceptionResult<int> result)
+        {
+            ApplyTimestamps(eventData.Context);
+            return base.SavingChanges(eventData, result);
+        }
+
+        public override ValueTask<InterceptionResult<int>> SavingChangesAsync(
+            DbContextEventData eventData, InterceptionResult<int> result, CancellationToken cancellationToken = default)
+        {
+            ApplyTimestamps(eventData.Context);
+            return base.SavingChangesAsync(eventData, result, cancellationToken);
+        }
+
+        private static void ApplyTimestamps(DbContext? context)
+        {
+            if (context is null)
+                return;
+
+            var now = DateTime.UtcNow;
+
+            foreach (var entry in context.ChangeTracker.Entries<IAuditable>())
+            {
+                if (entry.State == EntityState.Added)
+                {
+                    entry.Entity.CreatedAt = now;
+                    entry.Entity.UpdatedAt = now;
+                }
+                else if (entry.State == EntityState.Modified)
+                {
+                    entry.Entity.UpdatedAt = now;
+                }
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Database.cs

@@ -0,0 +1,57 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Storage;
+using MassTransit;
+using Musify.Domain.Entities;
+using Musify.Infrastructure.Configuration;
+using AppIDatabase = Musify.Application.Contracts.IDatabase;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.Persistence
+{
+    public class Database(DatabaseConfiguration configuration)
+        : DbContext, AppIDatabase
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            optionsBuilder.UseNpgsql(configuration.ConnectionString);
+            optionsBuilder.AddInterceptors(new AuditableEntityInterceptor());
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            base.OnModelCreating(modelBuilder);
+
+            modelBuilder.AddInboxStateEntity();
+            modelBuilder.AddOutboxMessageEntity();
+            modelBuilder.AddOutboxStateEntity();
+        }
+
+        public DbSet<User> Users => Set<User>();
+
+        public DbSet<Track> Tracks => Set<Track>();
+
+        public DbSet<PlayList> PlayLists => Set<PlayList>();
+
+        public DbSet<UserHasTrack> UserHasTracks => Set<UserHasTrack>();
+
+        public DbSet<PlayListHasTrack> PlayListHasTracks => Set<PlayListHasTrack>();
+
+        public DbSet<Upload> Uploads => Set<Upload>();
+
+        public DbSet<UploadIntent> UploadIntents => Set<UploadIntent>();
+
+        public async Task<IDatabaseTransaction> BeginTransactionAsync(System.Data.IsolationLevel isolationLevel, CancellationToken cancellationToken)
+        {
+            var transaction = await Database.BeginTransactionAsync(isolationLevel, cancellationToken);
+            return new DatabaseTransaction(transaction);
+        }
+
+        private sealed class DatabaseTransaction(IDbContextTransaction inner) : IDatabaseTransaction
+        {
+            public Task CommitAsync(CancellationToken cancellationToken = default) =>
+                inner.CommitAsync(cancellationToken);
+
+            public ValueTask DisposeAsync() => inner.DisposeAsync();
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/DatabaseDependencyInjection.cs

@@ -0,0 +1,27 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.Configuration;
+
+namespace Musify.Infrastructure.Persistence
+{
+    public static class DatabaseDependencyInjection
+    {
+        public static IServiceCollection AddDatabase(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors
+                .AddOptionsWithValidateOnStart<DatabaseConfiguration>()
+                .Bind(configuration.GetRequiredSection(DatabaseConfiguration.SectionName))
+                .ValidateDataAnnotations();
+
+            serviceDescriptors.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<DatabaseConfiguration>>().Value);
+
+            serviceDescriptors.AddDbContext<Database>();
+            serviceDescriptors.AddScoped<IDatabase>(serviceProvider => serviceProvider.GetRequiredService<Database>());
+
+            return serviceDescriptors;
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/DatabaseDesignTimeFactory.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+using Microsoft.Extensions.Configuration;
+using Musify.Infrastructure.Configuration;
+
+namespace Musify.Infrastructure.Persistence
+{
+    public class DatabaseDesignTimeFactory : IDesignTimeDbContextFactory<Database>
+    {
+        public Database CreateDbContext(string[] args)
+        {
+            var configuration = new ConfigurationBuilder()
+                .SetBasePath(Directory.GetCurrentDirectory())
+                .AddJsonFile("DesignSettings.json")
+                .AddUserSecrets<DatabaseDesignTimeFactory>()
+                .Build();
+
+            var databaseConfiguration = configuration
+                .GetRequiredSection(DatabaseConfiguration.SectionName)
+                .Get<DatabaseConfiguration>()
+                ?? throw new InvalidOperationException($"{DatabaseConfiguration.SectionName} configuration section not found.");
+
+            var optionsBuilder = new DbContextOptionsBuilder<Database>();
+            optionsBuilder.UseNpgsql(databaseConfiguration.ConnectionString);
+
+            return new Database(databaseConfiguration);
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/20260530020027_InitialCreate.Designer.cs

@@ -0,0 +1,578 @@
+
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Musify.Infrastructure.Persistence;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20260530020027_InitialCreate")]
+    partial class InitialCreate
+    {
+                protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.InboxState", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime?>("Consumed")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("ConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("ReceiveCount")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Received")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Delivered");
+
+                    b.ToTable("InboxState");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.Property<long>("SequenceNumber")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("SequenceNumber"));
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<Guid?>("ConversationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("CorrelationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("DestinationAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime?>("EnqueueTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FaultAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Headers")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InboxConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InboxMessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InitiatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("MessageType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("OutboxId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Properties")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RequestId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ResponseAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime>("SentTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("SourceAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("SequenceNumber");
+
+                    b.HasIndex("EnqueueTime");
+
+                    b.HasIndex("ExpirationTime");
+
+                    b.HasIndex("OutboxId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.HasIndex("InboxMessageId", "InboxConsumerId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.ToTable("OutboxMessage");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxState", b =>
+                {
+                    b.Property<Guid>("OutboxId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("OutboxId");
+
+                    b.HasIndex("Created");
+
+                    b.ToTable("OutboxState");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("LargePictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("SmallPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("PlayLists");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("AddedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PlayListId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Position")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PlayListId");
+
+                    b.HasIndex("TrackId");
+
+                    b.ToTable("PlayListHasTrack");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AudioFolderName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("AudioTranscodeProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("LargePictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime?>("LastRetryAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("NormalizedTitle")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalAudioName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("PicturesProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RetryCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("SmallPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<DateTime>("UpdatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Tracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Upload", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("State")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Upload");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("ExpectedSizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("ObjectName")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<int>("Purpose")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UploadIntents");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Property<long>("Id")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FirstName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("SecondName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TrackId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UserHasTrack");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.OutboxState", null)
+                        .WithMany()
+                        .HasForeignKey("OutboxId");
+
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.InboxState", null)
+                        .WithMany()
+                        .HasForeignKey("InboxMessageId", "InboxConsumerId")
+                        .HasPrincipalKey("MessageId", "ConsumerId");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("PlayLists")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.PlayList", "PlayList")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("PlayListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("PlayList");
+
+                    b.Navigation("Track");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Track");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Navigation("PlayListTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Navigation("PlayListTracks");
+
+                    b.Navigation("UserTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Navigation("PlayLists");
+
+                    b.Navigation("UserTracks");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/20260530020027_InitialCreate.cs

@@ -0,0 +1,355 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+        public partial class InitialCreate : Migration
+    {
+                protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "InboxState",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    MessageId = table.Column<Guid>(type: "uuid", nullable: false),
+                    ConsumerId = table.Column<Guid>(type: "uuid", nullable: false),
+                    LockId = table.Column<Guid>(type: "uuid", nullable: false),
+                    RowVersion = table.Column<byte[]>(type: "bytea", rowVersion: true, nullable: true),
+                    Received = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    ReceiveCount = table.Column<int>(type: "integer", nullable: false),
+                    ExpirationTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    Consumed = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    Delivered = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    LastSequenceNumber = table.Column<long>(type: "bigint", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InboxState", x => x.Id);
+                    table.UniqueConstraint("AK_InboxState_MessageId_ConsumerId", x => new { x.MessageId, x.ConsumerId });
+                });
+
+            migrationBuilder.CreateTable(
+                name: "OutboxState",
+                columns: table => new
+                {
+                    OutboxId = table.Column<Guid>(type: "uuid", nullable: false),
+                    LockId = table.Column<Guid>(type: "uuid", nullable: false),
+                    RowVersion = table.Column<byte[]>(type: "bytea", rowVersion: true, nullable: true),
+                    Created = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Delivered = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    LastSequenceNumber = table.Column<long>(type: "bigint", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_OutboxState", x => x.OutboxId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Tracks",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Title = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: false),
+                    NormalizedTitle = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: false),
+                    OriginalPictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    SmallPictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true),
+                    MediumPictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true),
+                    LargePictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true),
+                    OriginalAudioName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    AudioFolderName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: true),
+                    PicturesProcessingStatus = table.Column<int>(type: "integer", nullable: false),
+                    AudioTranscodeProcessingStatus = table.Column<int>(type: "integer", nullable: false),
+                    LifeCycleStatus = table.Column<int>(type: "integer", nullable: false),
+                    RetryCount = table.Column<int>(type: "integer", nullable: false),
+                    LastRetryAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    CreatedDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Tracks", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Upload",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Bucket = table.Column<string>(type: "text", nullable: false),
+                    Key = table.Column<string>(type: "text", nullable: false),
+                    ContentType = table.Column<string>(type: "text", nullable: false),
+                    CreatedTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    State = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Upload", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "User",
+                columns: table => new
+                {
+                    Id = table.Column<long>(type: "bigint", nullable: false),
+                    Name = table.Column<string>(type: "character varying(48)", maxLength: 48, nullable: false),
+                    NormalizedName = table.Column<string>(type: "character varying(48)", maxLength: 48, nullable: false),
+                    FirstName = table.Column<string>(type: "character varying(48)", maxLength: 48, nullable: true),
+                    SecondName = table.Column<string>(type: "character varying(48)", maxLength: 48, nullable: true),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_User", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "OutboxMessage",
+                columns: table => new
+                {
+                    SequenceNumber = table.Column<long>(type: "bigint", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    EnqueueTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    SentTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Headers = table.Column<string>(type: "text", nullable: true),
+                    Properties = table.Column<string>(type: "text", nullable: true),
+                    InboxMessageId = table.Column<Guid>(type: "uuid", nullable: true),
+                    InboxConsumerId = table.Column<Guid>(type: "uuid", nullable: true),
+                    OutboxId = table.Column<Guid>(type: "uuid", nullable: true),
+                    MessageId = table.Column<Guid>(type: "uuid", nullable: false),
+                    ContentType = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: false),
+                    MessageType = table.Column<string>(type: "text", nullable: false),
+                    Body = table.Column<string>(type: "text", nullable: false),
+                    ConversationId = table.Column<Guid>(type: "uuid", nullable: true),
+                    CorrelationId = table.Column<Guid>(type: "uuid", nullable: true),
+                    InitiatorId = table.Column<Guid>(type: "uuid", nullable: true),
+                    RequestId = table.Column<Guid>(type: "uuid", nullable: true),
+                    SourceAddress = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    DestinationAddress = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    ResponseAddress = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    FaultAddress = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: true),
+                    ExpirationTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_OutboxMessage", x => x.SequenceNumber);
+                    table.ForeignKey(
+                        name: "FK_OutboxMessage_InboxState_InboxMessageId_InboxConsumerId",
+                        columns: x => new { x.InboxMessageId, x.InboxConsumerId },
+                        principalTable: "InboxState",
+                        principalColumns: new[] { "MessageId", "ConsumerId" });
+                    table.ForeignKey(
+                        name: "FK_OutboxMessage_OutboxState_OutboxId",
+                        column: x => x.OutboxId,
+                        principalTable: "OutboxState",
+                        principalColumn: "OutboxId");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PlayLists",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserId = table.Column<long>(type: "bigint", nullable: false),
+                    Name = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: false),
+                    NormalizedName = table.Column<string>(type: "character varying(50)", maxLength: 50, nullable: false),
+                    Description = table.Column<string>(type: "character varying(256)", maxLength: 256, nullable: false),
+                    OriginalPictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    SmallPictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    MediumPictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    LargePictureName = table.Column<string>(type: "character varying(64)", maxLength: 64, nullable: false),
+                    LifeCycleStatus = table.Column<int>(type: "integer", nullable: false),
+                    CreatedDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedDate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PlayLists", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PlayLists_User_UserId",
+                        column: x => x.UserId,
+                        principalTable: "User",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UploadIntents",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserId = table.Column<long>(type: "bigint", nullable: false),
+                    Bucket = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
+                    Key = table.Column<string>(type: "character varying(512)", maxLength: 512, nullable: false),
+                    ObjectName = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
+                    ContentType = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
+                    ExpectedSizeBytes = table.Column<long>(type: "bigint", nullable: true),
+                    Purpose = table.Column<int>(type: "integer", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    ExpiresAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UploadIntents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_UploadIntents_User_UserId",
+                        column: x => x.UserId,
+                        principalTable: "User",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UserHasTrack",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserId = table.Column<long>(type: "bigint", nullable: false),
+                    TrackId = table.Column<Guid>(type: "uuid", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UserHasTrack", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_UserHasTrack_Tracks_TrackId",
+                        column: x => x.TrackId,
+                        principalTable: "Tracks",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_UserHasTrack_User_UserId",
+                        column: x => x.UserId,
+                        principalTable: "User",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PlayListHasTrack",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    PlayListId = table.Column<Guid>(type: "uuid", nullable: false),
+                    TrackId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Position = table.Column<int>(type: "integer", nullable: false),
+                    AddedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PlayListHasTrack", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PlayListHasTrack_PlayLists_PlayListId",
+                        column: x => x.PlayListId,
+                        principalTable: "PlayLists",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PlayListHasTrack_Tracks_TrackId",
+                        column: x => x.TrackId,
+                        principalTable: "Tracks",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InboxState_Delivered",
+                table: "InboxState",
+                column: "Delivered");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OutboxMessage_EnqueueTime",
+                table: "OutboxMessage",
+                column: "EnqueueTime");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OutboxMessage_ExpirationTime",
+                table: "OutboxMessage",
+                column: "ExpirationTime");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OutboxMessage_InboxMessageId_InboxConsumerId_SequenceNumber",
+                table: "OutboxMessage",
+                columns: new[] { "InboxMessageId", "InboxConsumerId", "SequenceNumber" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OutboxMessage_OutboxId_SequenceNumber",
+                table: "OutboxMessage",
+                columns: new[] { "OutboxId", "SequenceNumber" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_OutboxState_Created",
+                table: "OutboxState",
+                column: "Created");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PlayListHasTrack_PlayListId",
+                table: "PlayListHasTrack",
+                column: "PlayListId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PlayListHasTrack_TrackId",
+                table: "PlayListHasTrack",
+                column: "TrackId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PlayLists_UserId",
+                table: "PlayLists",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UploadIntents_UserId",
+                table: "UploadIntents",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserHasTrack_TrackId",
+                table: "UserHasTrack",
+                column: "TrackId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserHasTrack_UserId",
+                table: "UserHasTrack",
+                column: "UserId");
+        }
+
+                protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "OutboxMessage");
+
+            migrationBuilder.DropTable(
+                name: "PlayListHasTrack");
+
+            migrationBuilder.DropTable(
+                name: "Upload");
+
+            migrationBuilder.DropTable(
+                name: "UploadIntents");
+
+            migrationBuilder.DropTable(
+                name: "UserHasTrack");
+
+            migrationBuilder.DropTable(
+                name: "InboxState");
+
+            migrationBuilder.DropTable(
+                name: "OutboxState");
+
+            migrationBuilder.DropTable(
+                name: "PlayLists");
+
+            migrationBuilder.DropTable(
+                name: "Tracks");
+
+            migrationBuilder.DropTable(
+                name: "User");
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/20260531234306_AddUserProfilePictureUrl.Designer.cs

@@ -0,0 +1,583 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Musify.Infrastructure.Persistence;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20260531234306_AddUserProfilePictureUrl")]
+    partial class AddUserProfilePictureUrl
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.InboxState", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime?>("Consumed")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("ConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("ReceiveCount")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Received")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Delivered");
+
+                    b.ToTable("InboxState");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.Property<long>("SequenceNumber")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("SequenceNumber"));
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<Guid?>("ConversationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("CorrelationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("DestinationAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime?>("EnqueueTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FaultAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Headers")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InboxConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InboxMessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InitiatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("MessageType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("OutboxId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Properties")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RequestId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ResponseAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime>("SentTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("SourceAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("SequenceNumber");
+
+                    b.HasIndex("EnqueueTime");
+
+                    b.HasIndex("ExpirationTime");
+
+                    b.HasIndex("OutboxId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.HasIndex("InboxMessageId", "InboxConsumerId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.ToTable("OutboxMessage");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxState", b =>
+                {
+                    b.Property<Guid>("OutboxId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("OutboxId");
+
+                    b.HasIndex("Created");
+
+                    b.ToTable("OutboxState");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("LargePictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("SmallPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("PlayLists");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("AddedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PlayListId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Position")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PlayListId");
+
+                    b.HasIndex("TrackId");
+
+                    b.ToTable("PlayListHasTrack");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AudioFolderName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("AudioTranscodeProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("CreatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("LargePictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime?>("LastRetryAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("NormalizedTitle")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalAudioName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("PicturesProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RetryCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("SmallPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<DateTime>("UpdatedDate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Tracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Upload", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("State")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Upload");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("ExpectedSizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("ObjectName")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<int>("Purpose")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UploadIntents");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Property<long>("Id")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FirstName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("ProfilePictureUrl")
+                        .HasMaxLength(2048)
+                        .HasColumnType("character varying(2048)");
+
+                    b.Property<string>("SecondName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TrackId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UserHasTrack");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.OutboxState", null)
+                        .WithMany()
+                        .HasForeignKey("OutboxId");
+
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.InboxState", null)
+                        .WithMany()
+                        .HasForeignKey("InboxMessageId", "InboxConsumerId")
+                        .HasPrincipalKey("MessageId", "ConsumerId");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("PlayLists")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.PlayList", "PlayList")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("PlayListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("PlayList");
+
+                    b.Navigation("Track");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Track");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Navigation("PlayListTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Navigation("PlayListTracks");
+
+                    b.Navigation("UserTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Navigation("PlayLists");
+
+                    b.Navigation("UserTracks");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/20260531234306_AddUserProfilePictureUrl.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddUserProfilePictureUrl : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "ProfilePictureUrl",
+                table: "User",
+                type: "character varying(2048)",
+                maxLength: 2048,
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "ProfilePictureUrl",
+                table: "User");
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/20260601195757_RenameTimestampsAndAudit.Designer.cs

@@ -0,0 +1,583 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Musify.Infrastructure.Persistence;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    [DbContext(typeof(Database))]
+    [Migration("20260601195757_RenameTimestampsAndAudit")]
+    partial class RenameTimestampsAndAudit
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.InboxState", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime?>("Consumed")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("ConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("ReceiveCount")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Received")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Delivered");
+
+                    b.ToTable("InboxState");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.Property<long>("SequenceNumber")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("SequenceNumber"));
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<Guid?>("ConversationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("CorrelationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("DestinationAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime?>("EnqueueTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FaultAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Headers")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InboxConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InboxMessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InitiatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("MessageType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("OutboxId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Properties")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RequestId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ResponseAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime>("SentTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("SourceAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("SequenceNumber");
+
+                    b.HasIndex("EnqueueTime");
+
+                    b.HasIndex("ExpirationTime");
+
+                    b.HasIndex("OutboxId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.HasIndex("InboxMessageId", "InboxConsumerId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.ToTable("OutboxMessage");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxState", b =>
+                {
+                    b.Property<Guid>("OutboxId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("OutboxId");
+
+                    b.HasIndex("Created");
+
+                    b.ToTable("OutboxState");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("LargePictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("SmallPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("PlayLists");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("AddedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PlayListId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Position")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PlayListId");
+
+                    b.HasIndex("TrackId");
+
+                    b.ToTable("PlayListHasTrack");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AudioFolderName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("AudioTranscodeProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("LargePictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime?>("LastRetryAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("NormalizedTitle")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalAudioName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("PicturesProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RetryCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("SmallPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Tracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Upload", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("State")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Upload");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("ExpectedSizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("ObjectName")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<int>("Purpose")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UploadIntents");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Property<long>("Id")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FirstName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("ProfilePictureUrl")
+                        .HasMaxLength(2048)
+                        .HasColumnType("character varying(2048)");
+
+                    b.Property<string>("SecondName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TrackId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UserHasTrack");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.OutboxState", null)
+                        .WithMany()
+                        .HasForeignKey("OutboxId");
+
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.InboxState", null)
+                        .WithMany()
+                        .HasForeignKey("InboxMessageId", "InboxConsumerId")
+                        .HasPrincipalKey("MessageId", "ConsumerId");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("PlayLists")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.PlayList", "PlayList")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("PlayListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("PlayList");
+
+                    b.Navigation("Track");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Track");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Navigation("PlayListTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Navigation("PlayListTracks");
+
+                    b.Navigation("UserTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Navigation("PlayLists");
+
+                    b.Navigation("UserTracks");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/20260601195757_RenameTimestampsAndAudit.cs

@@ -0,0 +1,58 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class RenameTimestampsAndAudit : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.RenameColumn(
+                name: "UpdatedDate",
+                table: "Tracks",
+                newName: "UpdatedAt");
+
+            migrationBuilder.RenameColumn(
+                name: "CreatedDate",
+                table: "Tracks",
+                newName: "CreatedAt");
+
+            migrationBuilder.RenameColumn(
+                name: "UpdatedDate",
+                table: "PlayLists",
+                newName: "UpdatedAt");
+
+            migrationBuilder.RenameColumn(
+                name: "CreatedDate",
+                table: "PlayLists",
+                newName: "CreatedAt");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.RenameColumn(
+                name: "UpdatedAt",
+                table: "Tracks",
+                newName: "UpdatedDate");
+
+            migrationBuilder.RenameColumn(
+                name: "CreatedAt",
+                table: "Tracks",
+                newName: "CreatedDate");
+
+            migrationBuilder.RenameColumn(
+                name: "UpdatedAt",
+                table: "PlayLists",
+                newName: "UpdatedDate");
+
+            migrationBuilder.RenameColumn(
+                name: "CreatedAt",
+                table: "PlayLists",
+                newName: "CreatedDate");
+        }
+    }
+}

backend/Musify.Infrastructure/Persistence/Migrations/DatabaseModelSnapshot.cs

@@ -0,0 +1,580 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Musify.Infrastructure.Persistence;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Musify.Infrastructure.Persistence.Migrations
+{
+    [DbContext(typeof(Database))]
+    partial class DatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.InboxState", b =>
+                {
+                    b.Property<long>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("Id"));
+
+                    b.Property<DateTime?>("Consumed")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("ConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("ReceiveCount")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("Received")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Delivered");
+
+                    b.ToTable("InboxState");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.Property<long>("SequenceNumber")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bigint");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<long>("SequenceNumber"));
+
+                    b.Property<string>("Body")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<Guid?>("ConversationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("CorrelationId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("DestinationAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime?>("EnqueueTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("ExpirationTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FaultAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("Headers")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("InboxConsumerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InboxMessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("InitiatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("MessageId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("MessageType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("OutboxId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Properties")
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("RequestId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("ResponseAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<DateTime>("SentTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("SourceAddress")
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.HasKey("SequenceNumber");
+
+                    b.HasIndex("EnqueueTime");
+
+                    b.HasIndex("ExpirationTime");
+
+                    b.HasIndex("OutboxId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.HasIndex("InboxMessageId", "InboxConsumerId", "SequenceNumber")
+                        .IsUnique();
+
+                    b.ToTable("OutboxMessage");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxState", b =>
+                {
+                    b.Property<Guid>("OutboxId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("Delivered")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("LastSequenceNumber")
+                        .HasColumnType("bigint");
+
+                    b.Property<Guid>("LockId")
+                        .HasColumnType("uuid");
+
+                    b.Property<byte[]>("RowVersion")
+                        .IsConcurrencyToken()
+                        .ValueGeneratedOnAddOrUpdate()
+                        .HasColumnType("bytea");
+
+                    b.HasKey("OutboxId");
+
+                    b.HasIndex("Created");
+
+                    b.ToTable("OutboxState");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(256)
+                        .HasColumnType("character varying(256)");
+
+                    b.Property<string>("LargePictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("SmallPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("PlayLists");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("AddedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PlayListId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Position")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PlayListId");
+
+                    b.HasIndex("TrackId");
+
+                    b.ToTable("PlayListHasTrack");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AudioFolderName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("AudioTranscodeProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("LargePictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<DateTime?>("LastRetryAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("LifeCycleStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("MediumPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("NormalizedTitle")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<string>("OriginalAudioName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("OriginalPictureName")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<int>("PicturesProcessingStatus")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("RetryCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("SmallPictureName")
+                        .HasMaxLength(64)
+                        .HasColumnType("character varying(64)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("character varying(50)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Tracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Upload", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("State")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Upload");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Bucket")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<string>("ContentType")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<long?>("ExpectedSizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Key")
+                        .IsRequired()
+                        .HasMaxLength(512)
+                        .HasColumnType("character varying(512)");
+
+                    b.Property<string>("ObjectName")
+                        .IsRequired()
+                        .HasMaxLength(128)
+                        .HasColumnType("character varying(128)");
+
+                    b.Property<int>("Purpose")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UploadIntents");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Property<long>("Id")
+                        .HasColumnType("bigint");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FirstName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("NormalizedName")
+                        .IsRequired()
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<string>("ProfilePictureUrl")
+                        .HasMaxLength(2048)
+                        .HasColumnType("character varying(2048)");
+
+                    b.Property<string>("SecondName")
+                        .HasMaxLength(48)
+                        .HasColumnType("character varying(48)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("TrackId")
+                        .HasColumnType("uuid");
+
+                    b.Property<long>("UserId")
+                        .HasColumnType("bigint");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TrackId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UserHasTrack");
+                });
+
+            modelBuilder.Entity("MassTransit.EntityFrameworkCoreIntegration.OutboxMessage", b =>
+                {
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.OutboxState", null)
+                        .WithMany()
+                        .HasForeignKey("OutboxId");
+
+                    b.HasOne("MassTransit.EntityFrameworkCoreIntegration.InboxState", null)
+                        .WithMany()
+                        .HasForeignKey("InboxMessageId", "InboxConsumerId")
+                        .HasPrincipalKey("MessageId", "ConsumerId");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("PlayLists")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayListHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.PlayList", "PlayList")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("PlayListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("PlayListTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("PlayList");
+
+                    b.Navigation("Track");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UploadIntent", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.UserHasTrack", b =>
+                {
+                    b.HasOne("Musify.Domain.Entities.Track", "Track")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("TrackId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Musify.Domain.Entities.User", "User")
+                        .WithMany("UserTracks")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Track");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.PlayList", b =>
+                {
+                    b.Navigation("PlayListTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.Track", b =>
+                {
+                    b.Navigation("PlayListTracks");
+
+                    b.Navigation("UserTracks");
+                });
+
+            modelBuilder.Entity("Musify.Domain.Entities.User", b =>
+                {
+                    b.Navigation("PlayLists");
+
+                    b.Navigation("UserTracks");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

backend/Musify.Infrastructure/Services/AudioTranscoderService.cs

@@ -0,0 +1,215 @@
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using Musify.Infrastructure.Configuration;
+using System.Diagnostics;
+
+namespace Musify.Infrastructure.Services
+{
+    public class AudioTranscoderService(ILogger<AudioTranscoderService> logger,
+        AudioTranscoderConfiguration audioTranscoderConfiguration)
+        : IAudioTranscoderService
+    {
+        record FfmpegExecutionResult(int ExitCode, string StandardOutput, string StandardError);
+
+        public async Task<int> TranscodeToAudioFileAsync(Stream audioStream, string destinationPath, CancellationToken cancellationToken)
+        {
+            try
+            {
+                Directory.CreateDirectory(destinationPath);
+
+                logger.LogInformation("Starting audio transcoding for {DestinationPath}", destinationPath);
+
+                var executionResult = await ExecuteFfmpegWithInputAsync(
+                    BuildAudioFileArguments(destinationPath, audioTranscoderConfiguration.Ffmpeg),
+                    destinationPath,
+                    audioStream,
+                    "TranscodeToAudioFile",
+                    cancellationToken);
+
+                if (executionResult.ExitCode != 0)
+                {
+                    logger.LogError("Audio transcoding failed with exit code {ExitCode}. Output: {StandardOutput}, Error: {StandardError}",
+                        executionResult.ExitCode, executionResult.StandardOutput, executionResult.StandardError);
+                }
+                else
+                {
+                    logger.LogInformation("Audio transcoding completed for {DestinationPath}", destinationPath);
+                }
+
+                return executionResult.ExitCode;
+            }
+            catch (TimeoutException timeoutException)
+            {
+                logger.LogError(timeoutException, "Audio transcoding timed out after {Timeout} for {DestinationPath}", audioTranscoderConfiguration.TranscodingTimeout, destinationPath);
+                throw;
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to transcode audio for {DestinationPath}", destinationPath);
+                throw;
+            }
+        }
+
+        public async Task<bool> IsValidAudioFileAsync(string filePath, CancellationToken cancellationToken)
+        {
+            if (!File.Exists(filePath))
+            {
+                logger.LogWarning("Audio validation requested for non-existing file {FilePath}", filePath);
+                return false;
+            }
+
+            try
+            {
+                logger.LogDebug("Validating audio file {FilePath}", filePath);
+
+                var executionResult = await ExecuteFfmpegAsync(
+                    BuildValidateAudioArguments(filePath),
+                    Path.GetDirectoryName(filePath) ?? Environment.CurrentDirectory,
+                    "ValidateAudioFile",
+                    cancellationToken);
+
+                var isValid = executionResult.ExitCode == 0;
+                if (!isValid)
+                {
+                    logger.LogWarning("Audio validation failed for {FilePath}: {StandardError}", filePath, executionResult.StandardError);
+                }
+                else
+                {
+                    logger.LogDebug("Audio validation successful for {FilePath}", filePath);
+                }
+
+                return isValid;
+            }
+            catch (TimeoutException timeoutException)
+            {
+                logger.LogError(timeoutException, "Audio validation timed out for {FilePath}", filePath);
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to validate audio file {FilePath}", filePath);
+            }
+            return false;
+        }
+
+        async Task<FfmpegExecutionResult> ExecuteFfmpegWithInputAsync(
+            string arguments,
+            string workingDirectory,
+            Stream inputStream,
+            string operationName,
+            CancellationToken cancellationToken)
+        {
+            using var process = BuildProcess(arguments, workingDirectory, redirectStandardInput: true);
+            process.Start();
+
+            logger.LogDebug("[{Operation}] ffmpeg started (PID: {ProcessId}) in {WorkingDirectory}", operationName, process.Id, workingDirectory);
+
+            if (inputStream.CanSeek)
+                inputStream.Position = 0;
+
+            await inputStream.CopyToAsync(process.StandardInput.BaseStream, cancellationToken);
+            process.StandardInput.Close();
+
+            return await WaitForProcessResultAsync(process, operationName, cancellationToken);
+        }
+
+        async Task<FfmpegExecutionResult> ExecuteFfmpegAsync(
+            string arguments,
+            string workingDirectory,
+            string operationName,
+            CancellationToken cancellationToken)
+        {
+            using var process = BuildProcess(arguments, workingDirectory, redirectStandardInput: false);
+            process.Start();
+
+            logger.LogDebug("[{Operation}] ffmpeg started (PID: {ProcessId}) in {WorkingDirectory}", operationName, process.Id, workingDirectory);
+
+            return await WaitForProcessResultAsync(process, operationName, cancellationToken);
+        }
+
+        Process BuildProcess(string arguments, string workingDirectory, bool redirectStandardInput)
+            => new()
+            {
+                StartInfo = new ProcessStartInfo
+                {
+                    FileName = audioTranscoderConfiguration.Ffmpeg.ExecutableName,
+                    WorkingDirectory = workingDirectory,
+                    Arguments = arguments,
+                    RedirectStandardInput = redirectStandardInput,
+                    RedirectStandardOutput = true,
+                    RedirectStandardError = true,
+                    UseShellExecute = false,
+                    CreateNoWindow = true,
+                }
+            };
+
+        async Task<FfmpegExecutionResult> WaitForProcessResultAsync(
+            Process process,
+            string operationName,
+            CancellationToken cancellationToken)
+        {
+            var errorTask = process.StandardError.ReadToEndAsync(cancellationToken);
+            var outputTask = process.StandardOutput.ReadToEndAsync(cancellationToken);
+
+            using var linkedCancellationTokens = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
+            linkedCancellationTokens.CancelAfter(audioTranscoderConfiguration.TranscodingTimeout);
+
+            try
+            {
+                await process.WaitForExitAsync(linkedCancellationTokens.Token);
+            }
+            catch (OperationCanceledException) when (!cancellationToken.IsCancellationRequested)
+            {
+                logger.LogError("[{Operation}] ffmpeg timed out after {Timeout} (PID: {ProcessId})",
+                    operationName, audioTranscoderConfiguration.TranscodingTimeout, process.Id);
+
+                TryKillProcess(process);
+                throw new TimeoutException($"ffmpeg execution exceeded timeout {audioTranscoderConfiguration.TranscodingTimeout}.");
+            }
+
+            var standardError = await errorTask;
+            var standardOutput = await outputTask;
+
+            logger.LogDebug("[{Operation}] ffmpeg finished (PID: {ProcessId}). Exit code: {ExitCode}, Output: {OutputLength}B, Error: {ErrorLength}B",
+                operationName, process.Id, process.ExitCode, standardOutput.Length, standardError.Length);
+
+            return new FfmpegExecutionResult(process.ExitCode, standardOutput, standardError);
+        }
+
+        void TryKillProcess(Process process)
+        {
+            try
+            {
+                if (!process.HasExited)
+                    process.Kill();
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to kill ffmpeg process (PID: {ProcessId})", process.Id);
+            }
+        }
+
+        static string BuildAudioFileArguments(string outputDirectory, FfmpegConfiguration ffmpegConfiguration)
+        {
+            var outputPath = Path.Combine(outputDirectory, ffmpegConfiguration.OutputFileName);
+            var additionalArguments = string.IsNullOrWhiteSpace(ffmpegConfiguration.AdditionalArguments)
+                ? string.Empty
+                : $" {ffmpegConfiguration.AdditionalArguments.Trim()}";
+
+            return "-y -hide_banner -loglevel error " +
+                   "-i pipe:0 " +
+                   "-vn " +
+                   "-map 0:a " +
+                   $"-c:a {ffmpegConfiguration.AudioCodec} " +
+                   $"-b:a {ffmpegConfiguration.AudioBitrate} " +
+                   $"-ac {ffmpegConfiguration.AudioChannels} " +
+                   $"-ar {ffmpegConfiguration.AudioSampleRate} " +
+                   $"-profile:a {ffmpegConfiguration.AudioProfile} " +
+                   "-movflags +faststart" +
+                   additionalArguments +
+                   $" \"{outputPath}\"";
+        }
+
+        static string BuildValidateAudioArguments(string filePath)
+            => $"-v error -i \"{filePath}\" -map 0:a:0 -f null -";
+    }
+}

backend/Musify.Infrastructure/Services/PictureService.cs

@@ -0,0 +1,40 @@
+using Microsoft.Extensions.Logging;
+using Musify.Application.Contracts;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.Processing;
+
+namespace Musify.Infrastructure.Services
+{
+    public class PictureService(ILogger<PictureService> logger)
+        : IPictureService
+    {
+        public async Task<Stream> ResizePictureAsWebpAsync(Stream pictureStream, int width, int height, CancellationToken cancellationToken)
+        {
+            try
+            {
+                logger.LogDebug("Resizing picture to {Width}x{Height}", width, height);
+                if (pictureStream.CanSeek && pictureStream.Position > 0)
+                    pictureStream.Position = 0;
+
+                using var picture = await Image.LoadAsync(pictureStream, cancellationToken);
+                picture.Mutate(options => options.Resize(new ResizeOptions
+                {
+                    Size = new Size(width, height),
+                    Mode = ResizeMode.Max
+                } ));
+
+                var memoryStream = new MemoryStream();
+                await picture.SaveAsWebpAsync(memoryStream, cancellationToken);
+                memoryStream.Position = 0;
+
+                logger.LogDebug("Picture resized to {Width}x{Height}, length: {Length}", width, height, memoryStream.Length);
+                return memoryStream;
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to resize picture to {Width}x{Height}", width, height);
+                throw;
+            }
+        }
+    }
+}

backend/Musify.Infrastructure/Services/ServicesDependencyInjection.cs

@@ -0,0 +1,100 @@
+using Amazon.S3;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Musify.Application.Configuration;
+using Musify.Infrastructure.Configuration;
+using Musify.Infrastructure.Jobs;
+using Musify.Application.Services;
+using Musify.Application.Contracts;
+
+namespace Musify.Infrastructure.Services
+{
+    public static class ServicesDependencyInjection
+    {
+        public static IServiceCollection AddStorageService(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors
+                .AddOptionsWithValidateOnStart<InfrastructureStorageConfiguration>()
+                .Bind(configuration.GetRequiredSection(InfrastructureStorageConfiguration.SectionName))
+                .ValidateDataAnnotations();
+
+            serviceDescriptors.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<InfrastructureStorageConfiguration>>().Value);
+
+            serviceDescriptors.AddScoped<IAmazonS3>(serviceProvider =>
+            {
+                var configuration = serviceProvider.GetRequiredService<InfrastructureStorageConfiguration>();
+                var s3Configuration = new AmazonS3Config
+                {
+                    ServiceURL = configuration.Address,
+                    ForcePathStyle = configuration.ForcePathStyle,
+                    UseHttp = configuration.UseHttp,
+                };
+                return new AmazonS3Client(configuration.AccessKey, configuration.SecretAccessKey, s3Configuration);
+            } );
+
+            serviceDescriptors.AddScoped<IStorageService, StorageService>();
+            return serviceDescriptors;
+        }
+
+        public static IServiceCollection AddPictureService(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors.AddScoped<IPictureService, PictureService>();
+            return serviceDescriptors;
+        }
+
+        public static IServiceCollection AddUploadIntentConfiguration(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors
+                .AddOptionsWithValidateOnStart<UploadIntentConfiguration>()
+                .Bind(configuration.GetRequiredSection(UploadIntentConfiguration.SectionName))
+                .ValidateDataAnnotations();
+
+            serviceDescriptors.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<UploadIntentConfiguration>>().Value);
+
+            serviceDescriptors.AddScoped<UploadIntentValidator>();
+
+            return serviceDescriptors;
+        }
+
+        public static IServiceCollection AddUploadIntentJobs(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors.AddUploadIntentConfiguration(configuration);
+
+            serviceDescriptors.AddHostedService<UploadIntentExpirationJob>();
+            serviceDescriptors.AddHostedService<TemporalUploadsCleanUpJob>();
+
+            return serviceDescriptors;
+        }
+
+        public static IServiceCollection AddStreamTicketService(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors
+                .AddOptionsWithValidateOnStart<StreamTicketConfiguration>()
+                .Bind(configuration.GetRequiredSection(StreamTicketConfiguration.SectionName))
+                .ValidateDataAnnotations();
+
+            serviceDescriptors.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<StreamTicketConfiguration>>().Value);
+
+            serviceDescriptors.AddSingleton<IStreamTicketService, StreamTicketService>();
+            return serviceDescriptors;
+        }
+
+        public static IServiceCollection AddAudioTranscoder(this IServiceCollection serviceDescriptors, IConfiguration configuration)
+        {
+            serviceDescriptors
+                .AddOptionsWithValidateOnStart<AudioTranscoderConfiguration>()
+                .Bind(configuration.GetRequiredSection(AudioTranscoderConfiguration.SectionName))
+                .ValidateDataAnnotations();
+
+            serviceDescriptors.AddSingleton(serviceProvider =>
+                serviceProvider.GetRequiredService<IOptions<AudioTranscoderConfiguration>>().Value);
+
+            serviceDescriptors.AddScoped<IAudioTranscoderService, AudioTranscoderService>();
+            return serviceDescriptors;
+        }
+    }
+}

backend/Musify.Infrastructure/Services/StorageService.cs

@@ -0,0 +1,299 @@
+using Amazon.S3;
+using Amazon.S3.Model;
+using Amazon.S3.Transfer;
+using Microsoft.Extensions.Logging;
+using MimeMapping;
+using Musify.Application.Contracts;
+using Musify.Domain.Entities;
+using Musify.Domain.ValueObjects;
+using Musify.Infrastructure.Configuration;
+using ObjectMetaData = Musify.Application.Contracts.ObjectMetaData;
+
+namespace Musify.Infrastructure.Services
+{
+    public class StorageService(IDatabase database, IAmazonS3 amazonS3, ILogger<StorageService> logger,
+        InfrastructureStorageConfiguration storageClientConfiguration)
+        : IStorageService
+    {
+        public async Task<Stream> GetFileAsync(string bucket, string key, CancellationToken cancellationToken)
+        {
+            var request = new GetObjectRequest
+            {
+                BucketName = bucket,
+                Key = key,
+            };
+
+            try
+            {
+                var response = await amazonS3.GetObjectAsync(request, cancellationToken);
+                logger.LogDebug("Retrieved file from S3 {Bucket}/{Key}", bucket, key);
+                return response.ResponseStream;
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to get file from S3 {Bucket}/{Key}", bucket, key);
+                throw;
+            }
+        }
+
+        public async Task<string> GetUrlAsync(string bucket, string key, TimeSpan expirationTime, CancellationToken cancellationToken)
+        {
+            var request = new GetPreSignedUrlRequest
+            {
+                BucketName = bucket,
+                Key = key,
+                Expires = DateTime.UtcNow + expirationTime,
+                Protocol = storageClientConfiguration.UseHttp ? Protocol.HTTP : Protocol.HTTPS
+            };
+
+            logger.LogDebug("Generating pre-signed URL for {Bucket}/{Key}", bucket, key);
+            return await amazonS3.GetPreSignedURLAsync(request);
+        }
+
+        public async Task<string> GetUploadUrlAsync(
+            string bucket,
+            string key,
+            string contentType,
+            TimeSpan expirationTime,
+            CancellationToken cancellationToken,
+            bool preventOverwrite = true)
+        {
+            var request = new GetPreSignedUrlRequest
+            {
+                BucketName = bucket,
+                Key = key,
+                Expires = DateTime.UtcNow + expirationTime,
+                Protocol = storageClientConfiguration.UseHttp ? Protocol.HTTP : Protocol.HTTPS,
+                Verb = HttpVerb.PUT,
+                ContentType = contentType
+            };
+
+            if (preventOverwrite)
+                request.Headers["If-None-Match"] = "*";
+
+            logger.LogDebug("Generating pre-signed upload URL for {Bucket}/{Key}", bucket, key);
+            return await amazonS3.GetPreSignedURLAsync(request);
+        }
+
+        public async Task<ObjectMetaData?> HeadObjectAsync(string bucket, string key, CancellationToken cancellationToken)
+        {
+            try
+            {
+                var response = await amazonS3.GetObjectMetadataAsync(bucket, key, cancellationToken);
+                return new ObjectMetaData(response.Headers.ContentType, response.ContentLength);
+            }
+            catch (AmazonS3Exception ex) when (ex.StatusCode == System.Net.HttpStatusCode.NotFound)
+            {
+                return null;
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "HEAD failed for {Bucket}/{Key}", bucket, key);
+                throw;
+            }
+        }
+
+        public async Task RemoveFileAsync(string bucket, string key, CancellationToken cancellationToken)
+        {
+            var request = new DeleteObjectRequest
+            {
+                BucketName = bucket,
+                Key = key,
+            };
+
+            logger.LogDebug("Removing file from S3 {Bucket}/{Key}", bucket, key);
+            await amazonS3.DeleteObjectAsync(request, cancellationToken);
+        }
+
+        public async Task TransferFilesAsync(string sourceDirectory, string bucket, string route, CancellationToken cancellationToken)
+        {
+            var trasnsferUtility = new TransferUtility(amazonS3);
+
+            var files = Directory.GetFiles(sourceDirectory, "*");
+
+            var successCount = 0;
+            var failedCount = 0;
+
+            foreach (var file in files)
+            {
+                string fileName = Path.GetFileName(file);
+                string filePath = Path.Combine(sourceDirectory, file);
+
+                var key = string.Join('/', new[] { route, fileName }
+                    .Where(static s => !string.IsNullOrWhiteSpace(s))
+                    .Select(static s => s.Trim().Trim('/', '\\')));
+                var contentType = MimeUtility.GetMimeMapping(filePath);
+                var upload = new Upload
+                {
+                    Id = Guid.NewGuid(),
+                    Bucket = bucket,
+                    Key = key,
+                    ContentType = contentType
+                };
+                await database.Uploads.AddAsync(upload, cancellationToken);
+
+                try
+                {
+                    await trasnsferUtility.UploadAsync(
+                        new TransferUtilityUploadRequest
+                        {
+                            FilePath = filePath,
+                            BucketName = bucket,
+                            Key = key,
+                            ContentType = contentType
+                        },
+                        cancellationToken);
+                    upload.State = UploadState.Successful;
+                    successCount++;
+                    logger.LogDebug("Transferred file to S3 {Bucket}/{Key}", bucket, key);
+                }
+                catch (Exception exception)
+                {
+                    failedCount++;
+                    upload.State = UploadState.Failed;
+                    logger.LogError(exception, "Failed to transfer file to S3 {Bucket}/{Key}", bucket, key);
+                    throw;
+                }
+            }
+
+            await database.SaveChangesAsync(cancellationToken);
+            logger.LogInformation("File transfer completed to {Bucket}/{Route}. Success: {SuccessCount}, Failed: {FailedCount}", bucket, route, successCount, failedCount);
+        }
+
+        public async Task UploadFileAsync(string filePath, string bucket, string key, CancellationToken cancellationToken)
+        {
+            try
+            {
+                using var fileStream = File.OpenRead(filePath);
+                var contentType = MimeUtility.GetMimeMapping(filePath);
+                await UploadFileAsync(fileStream, contentType, bucket, key, cancellationToken);
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to upload file to S3 {Bucket}/{Key}", bucket, key);
+                throw;
+            }
+        }
+
+        public async Task UploadFileAsync(Stream sourceStream, string contentType, string bucket, string key, CancellationToken cancellationToken)
+        {
+            var request = new PutObjectRequest
+            {
+                BucketName = bucket,
+                ContentType = contentType,
+                InputStream = sourceStream,
+                Key = key
+            };
+
+            var upload = new Upload
+            {
+                Id = Guid.NewGuid(),
+                Bucket = bucket,
+                Key = key,
+                ContentType = contentType
+            };
+            await database.Uploads.AddAsync(upload, cancellationToken);
+
+            try
+            {
+                var response = await amazonS3.PutObjectAsync(request, cancellationToken);
+                logger.LogDebug("Uploaded file to S3 {Bucket}/{Key}", bucket, key);
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to upload file to S3 {Bucket}/{Key}", bucket, key);
+                upload.State = UploadState.Failed;
+                await database.SaveChangesAsync(cancellationToken);
+                throw;
+            }
+
+            upload.State = UploadState.Successful;
+            await database.SaveChangesAsync(cancellationToken);
+            logger.LogDebug("Saved upload record for {Bucket}/{Key}", bucket, key);
+        }
+
+        public async Task CopyFileAsync(string sourceBucket, string sourceKey, string destinationBucket, string destinationKey,
+            CancellationToken cancellationToken)
+        {
+            var request = new CopyObjectRequest
+            {
+                SourceBucket = sourceBucket,
+                SourceKey = sourceKey,
+                DestinationBucket = destinationBucket,
+                DestinationKey = destinationKey
+            };
+
+            try
+            {
+                var response = await amazonS3.CopyObjectAsync(request, cancellationToken);
+                logger.LogInformation("Copied file from {SourceBucket}/{SourceKey} to {DestinationBucket}/{DestinationKey}",
+                    sourceBucket, sourceKey, destinationBucket, destinationKey);
+            }
+            catch (Exception exception)
+            {
+                logger.LogError(exception, "Failed to copy file from {SourceBucket}/{SourceKey} to {DestinationBucket}/{DestinationKey}", 
+                    sourceBucket, sourceKey, destinationBucket, destinationKey);
+                throw;
+            }
+        }
+
+        public async IAsyncEnumerable<StorageObject> ListObjectsAsync(
+            string bucket, string prefix, [System.Runtime.CompilerServices.EnumeratorCancellation] CancellationToken cancellationToken)
+        {
+            var listRequest = new ListObjectsV2Request
+            {
+                BucketName = bucket,
+                Prefix = prefix.EndsWith('/') ? prefix : $"{prefix}/"
+            };
+
+            ListObjectsV2Response listResponse;
+            do
+            {
+                listResponse = await amazonS3.ListObjectsV2Async(listRequest, cancellationToken);
+                foreach (var s3Object in listResponse.S3Objects ?? [] )
+                    yield return new StorageObject(s3Object.Key, (s3Object.LastModified ?? DateTime.UtcNow).ToUniversalTime());
+
+                listRequest.ContinuationToken = listResponse.NextContinuationToken;
+            }
+            while (listResponse.IsTruncated.HasValue && listResponse.IsTruncated.Value);
+        }
+
+        public async Task RemoveFolderAsync(string bucket, string folderKey, CancellationToken cancellationToken)
+        {
+            var prefix = folderKey.EndsWith('/') ? folderKey : $"{folderKey}/";
+            var listRequest = new ListObjectsV2Request
+            {
+                BucketName = bucket,
+                Prefix = prefix
+            };
+
+            ListObjectsV2Response listResponse;
+            do
+            {
+                listResponse = await amazonS3.ListObjectsV2Async(listRequest, cancellationToken);
+
+                if (listResponse.S3Objects is null or { Count: 0 })
+                    break;
+
+                var deleteRequest = new DeleteObjectsRequest
+                {
+                    BucketName = bucket,
+                    Objects = listResponse.S3Objects
+                        .Select(o => new KeyVersion { Key = o.Key } )
+                        .ToList()
+                };
+
+                var deleteResponse = await amazonS3.DeleteObjectsAsync(deleteRequest, cancellationToken);
+
+                if (deleteResponse.DeleteErrors.Count > 0)
+                {
+                    var errors = string.Join(", ", deleteResponse.DeleteErrors.Select(e => $"{e.Key}: {e.Message}"));
+                    throw new InvalidOperationException($"Failed to delete some objects in folder {folderKey}: {errors}");
+                }
+
+                listRequest.ContinuationToken = listResponse.NextContinuationToken;
+
+            } while (listResponse.IsTruncated.HasValue && listResponse.IsTruncated.Value);
+        }
+    }
+}