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/Assistants/ModelComparison/ModelComparisonSeriesTaskState.cs

@@ -0,0 +1,27 @@
+namespace AIStudio.Assistants.ModelComparison;
+
+/// <summary>
+/// How far a task of a comparison series got.
+/// </summary>
+public enum ModelComparisonSeriesTaskState
+{
+    /// <summary>
+    /// The user works on the task in the first chat.
+    /// </summary>
+    FIRST_CHAT,
+
+    /// <summary>
+    /// The user works on the task in the second chat, which started with the same first message.
+    /// </summary>
+    SECOND_CHAT,
+
+    /// <summary>
+    /// The user is done with both chats and decides which one helped more.
+    /// </summary>
+    DECIDING,
+
+    /// <summary>
+    /// The user decided; the task counts toward the result of the series.
+    /// </summary>
+    DONE,
+}