Added the BeyondFacts Lab as a prototype (#1175)

app/MindWork AI Studio/Assistants/BeyondFactsLab/BflStorageOptions.cs

@@ -0,0 +1,12 @@
+namespace AIStudio.Assistants.BeyondFactsLab;
+
+/// <summary>
+/// Overrides where the BeyondFacts Lab stores its preparations, for tests.
+/// </summary>
+public sealed class BflStorageOptions
+{
+    /// <summary>
+    /// Gets or initializes the folder in which the folder beyondFactsLab is created.
+    /// </summary>
+    public string? DataDirectory { get; init; }
+}