Added the BeyondFacts Lab as a prototype (#1175)

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

@@ -0,0 +1,40 @@
+namespace AIStudio.Assistants.BeyondFactsLab;
+
+/// <summary>
+/// A field of the form "Your details" of a step in the BeyondFacts Lab.
+/// </summary>
+/// <param name="Id">The ID of the field, which a form stores. It never changes.</param>
+/// <param name="Step">The step whose form shows the field.</param>
+/// <param name="Kind">How the field takes its value.</param>
+public sealed record BflFieldDefinition(string Id, BflStep Step, BflFieldKind Kind)
+{
+    /// <summary>
+    /// Gets whether the step works poorly without the field, so the lab marks it as missing while it is empty.
+    /// The person may continue anyway; the chat asks for it.
+    /// </summary>
+    public bool IsKeyDetail { get; init; }
+
+    /// <summary>
+    /// Gets whether the field holds something personal, which exports and sharing leave out unless the person
+    /// chooses otherwise.
+    /// </summary>
+    public bool IsPersonalDisclosure { get; init; }
+
+    /// <summary>
+    /// Gets whether the field holds public details about the event, which the research on the web may use.
+    /// </summary>
+    /// <remarks>
+    /// Nothing else of a preparation reaches the research: neither the other fields, nor materials, nor work states.
+    /// </remarks>
+    public bool IsSharedWithResearch { get; init; }
+
+    /// <summary>
+    /// Gets whether the field holds names of people.
+    /// </summary>
+    public BflNameRole NameRole { get; init; } = BflNameRole.NONE;
+
+    /// <summary>
+    /// Gets the options of a field which offers a choice, in the order to show them.
+    /// </summary>
+    public IReadOnlyList<BflFieldOption> Options { get; init; } = [];
+}