Add Info, Error, AddedWho, and ChangedWho to ResultView

Extended ResultView with four new nullable string properties:
Info and Error for additional details and error messages,
and AddedWho and ChangedWho for tracking user metadata.

src/ReC.Domain/Views/ResultView.cs

@@ -25,6 +25,10 @@ public class ResultView
 
     public string? Body { get; set; }
 
+    public string? Info { get; set; }
+
+    public string? Error { get; set; }
+
     public string? AddedWho { get; set; }
 
     public DateTime? AddedWhen { get; set; }