Added the Model Comparison assistant for blind comparisons of two models (#1009)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Components/AssistantModeOption.cs

@@ -0,0 +1,11 @@
+namespace AIStudio.Components;
+
+/// <summary>
+/// One of the modes an assistant offers before it starts, e.g., to compare models on one request or on whole tasks.
+/// </summary>
+/// <typeparam name="TMode">The type of the modes of the assistant.</typeparam>
+/// <param name="Mode">The mode the assistant works in once the user chose this option.</param>
+/// <param name="Icon">The icon of the option.</param>
+/// <param name="Title">The short name of the option.</param>
+/// <param name="Description">What the assistant does in this mode.</param>
+public readonly record struct AssistantModeOption<TMode>(TMode Mode, string Icon, string Title, string Description);