stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.Provcache/WriteBehindQueueHostedService.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Hosting;
+
+namespace StellaOps.Provcache;
+
+internal sealed class WriteBehindQueueHostedService : BackgroundService
+{
+    private readonly IWriteBehindQueue _queue;
+
+    public WriteBehindQueueHostedService(IWriteBehindQueue queue)
+    {
+        _queue = queue ?? throw new ArgumentNullException(nameof(queue));
+    }
+
+    protected override Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        return _queue.RunAsync(stoppingToken);
+    }
+}