feat: add chat messages

Client/Domain/Factories/ChatMessageFactoryInterface.cs

@@ -0,0 +1,14 @@
+using Client.Domain.ValueObjects;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Client.Domain.Factories
+{
+    public interface ChatMessageFactoryInterface
+    {
+        ChatMessage Create(string data);
+    }
+}

Client/Domain/Factories/EntityFactoryInterface.cs

@@ -7,8 +7,8 @@ using Client.Domain.Entities;
 
 namespace Client.Domain.Factories
 { 
-    public interface EntityFactoryInterface<T>
-    {
+    public interface EntityFactoryInterface<T> where T: class
+    { 
         public T? Create(string data);
         public void Update(T entity, string data);
     }