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/ModelComparisonSeriesJudgeStatus.cs

@@ -0,0 +1,33 @@
+namespace AIStudio.Assistants.ModelComparison;
+
+/// <summary>
+/// What became of the judge for a task of a comparison series.
+/// </summary>
+public enum ModelComparisonSeriesJudgeStatus
+{
+    /// <summary>
+    /// The judge was not asked: the series has none, the user did not decide yet, or the user left before the judge
+    /// answered.
+    /// </summary>
+    NOT_ASKED,
+
+    /// <summary>
+    /// The judge gave a usable verdict.
+    /// </summary>
+    VERDICT,
+
+    /// <summary>
+    /// The judge was asked, but gave no usable verdict.
+    /// </summary>
+    NO_VERDICT,
+
+    /// <summary>
+    /// Both chats together are too long for the context window of the judge, so it was not asked.
+    /// </summary>
+    TOO_LONG,
+
+    /// <summary>
+    /// The judge is no longer available as it was when the series began, so it was not asked.
+    /// </summary>
+    UNAVAILABLE,
+}