Added a retrieval context validation agent (#289)

app/MindWork AI Studio/Settings/DataModel/DataAgentDataSourceSelection.cs

@@ -3,12 +3,12 @@ namespace AIStudio.Settings.DataModel;
 public sealed class DataAgentDataSourceSelection
 {
     /// <summary>
-    /// Preselect any text content cleaner options?
+    /// Preselect any data source selection options?
     /// </summary>
     public bool PreselectAgentOptions { get; set; }
     
     /// <summary>
-    /// Preselect a text content cleaner provider?
+    /// Preselect a data source selection provider?
     /// </summary>
     public string PreselectedAgentProvider { get; set; } = string.Empty;
 }