Initial commit: Musify.Worker background worker (MassTransit consumers for picture/audio processing)

Worker/Worker.cs

@@ -0,0 +1,9 @@
+namespace Musify.Worker
+{
+    public class Worker : BackgroundService
+    {
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+        }
+    }
+}