Adds Generic CommandHandlerDecorator

Core/CommandQueries/CommandResponse.cs

@@ -0,0 +1,16 @@
+namespace PlanTempus.Core.CommandQueries;
+
+public class CommandResponse
+{
+    public Guid RequestId { get; }
+    public Guid CorrelationId { get; }
+    public Guid? TransactionId { get; }
+    public DateTime CreatedAt { get; }
+
+    public CommandResponse(Guid correlationId)
+    {
+        CorrelationId = correlationId;
+        RequestId = Guid.CreateVersion7();
+        CreatedAt = DateTime.Now;
+    }
+}