Allow us to hide some messages from the user

app/MindWork AI Studio/Assistants/AssistantBase.razor.cs

@@ -201,13 +201,14 @@ public abstract partial class AssistantBase : ComponentBase, IMessageBusReceiver
         return chatId;
     }
     
-    protected DateTimeOffset AddUserRequest(string request)
+    protected DateTimeOffset AddUserRequest(string request, bool hideContentFromUser = false)
     {
         var time = DateTimeOffset.Now;
         this.chatThread!.Blocks.Add(new ContentBlock
         {
             Time = time,
             ContentType = ContentType.TEXT,
+            HideFromUser = hideContentFromUser,
             Role = ChatRole.USER,
             Content = new ContentText
             {

app/MindWork AI Studio/Chat/ContentBlock.cs

@@ -18,10 +18,15 @@ public class ContentBlock
     /// <summary>
     /// The content of the block.
     /// </summary>
-    public IContent? Content { get; init; } = null;
+    public IContent? Content { get; init; }
 
     /// <summary>
     /// The role of the content block in the chat thread, e.g., user, AI, etc.
     /// </summary>
     public ChatRole Role { get; init; } = ChatRole.NONE;
+
+    /// <summary>
+    /// Should the content block be hidden from the user?
+    /// </summary>
+    public bool HideFromUser { get; set; }
 }

app/MindWork AI Studio/Pages/Chat.razor

@@ -21,10 +21,13 @@
         @if (this.chatThread is not null)
         {
             foreach (var block in this.chatThread.Blocks.OrderBy(n => n.Time))
+            {
+                @if (!block.HideFromUser)
                 {
                     <ContentBlockComponent Role="@block.Role" Type="@block.ContentType" Time="@block.Time" Content="@block.Content"/>
                 }
             }
+        }
     </ChildContent>
     <FooterContent>
         <MudElement Style="flex: 0 0 auto;">