Added results and exports to the BeyondFacts Lab (#1184)

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

@@ -0,0 +1,14 @@
+namespace AIStudio.Assistants.BeyondFactsLab;
+
+/// <summary>
+/// Where a result belongs: to a preparation, as one of its kinds of results.
+/// </summary>
+/// <param name="ProjectId">The ID of the preparation.</param>
+/// <param name="Kind">The kind of result.</param>
+public sealed record BflResultLocation(Guid ProjectId, BflResultKind Kind)
+{
+    /// <summary>
+    /// Gets a key which tells the result apart from every other one, e.g., for a running request.
+    /// </summary>
+    public string Key => $"{this.ProjectId:D}/results/{this.Kind.FileName}";
+}