Start operation implementation

Hcs.WebApp/BackgroundServices/OperationExecutionState.cs

@@ -0,0 +1,27 @@
+using Hcs.WebApp.Data.Hcs;
+using System.Collections.Concurrent;
+
+namespace Hcs.WebApp.BackgroundServices
+{
+    public class OperationExecutionState
+    {
+        private readonly ConcurrentQueue<Operation> operations = new();
+
+        public event Action<Operation> OnOperationStarted;
+
+        public void EnqueueOperation(Operation operation)
+        {
+            operations.Enqueue(operation);
+        }
+
+        public bool TryDequeueOperation(out Operation operation)
+        {
+            return operations.TryDequeue(out operation);
+        }
+
+        public void InvokeOnOperationStarted(Operation operation)
+        {
+            OnOperationStarted?.Invoke(operation);
+        }
+    }
+}