added metadata for bm25 and also confidence levels

app/MindWork AI Studio/Settings/IDataSource.cs

@@ -1,6 +1,7 @@
 using System.Text.Json.Serialization;
 
 using AIStudio.Chat;
+using AIStudio.Provider;
 using AIStudio.Settings.DataModel;
 using AIStudio.Tools.PluginSystem;
 using AIStudio.Tools.RAG;
@@ -25,6 +26,11 @@ public interface IDataSource : IConfigurationObject
     /// Which data security policy is applied to this data source?
     /// </summary>
     public DataSourceSecurity SecurityPolicy { get; init; }
+
+    /// <summary>
+    /// Which compliance level is assigned to this data source?
+    /// </summary>
+    public ConfidenceLevel ComplianceLevel { get; init; }
     
     /// <summary>
     /// The maximum number of matches to return when retrieving data from the ERI server.