Start operation implementation

Hcs.WebApp/BackgroundServices/OperationExecutionService.cs

@@ -0,0 +1,17 @@
+namespace Hcs.WebApp.BackgroundServices
+{
+    public class OperationExecutionService(OperationExecutionState state) : BackgroundService
+    {
+        private readonly OperationExecutionState state = state;
+
+        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                await Task.Delay(10000, stoppingToken);
+
+                // TODO
+            }
+        }
+    }
+}