Added security checks for confidence levels

app/MindWork AI Studio/Chat/ChatThread.cs

@@ -1,6 +1,7 @@
 using System.Globalization;
 
 using AIStudio.Components;
+using AIStudio.Provider;
 using AIStudio.Settings;
 using AIStudio.Settings.DataModel;
 using AIStudio.Tools.ERIClient.DataModel;
@@ -76,6 +77,11 @@ public sealed record ChatThread
     /// </summary>
     public DataSourceSecurity DataSecurity { get; set; } = DataSourceSecurity.NOT_SPECIFIED;
 
+    /// <summary>
+    /// The minimum provider confidence required by data sources used so far.
+    /// </summary>
+    public ConfidenceLevel DataComplianceLevel { get; set; } = ConfidenceLevel.NONE;
+
     /// <summary>
     /// The name of the chat thread. Usually generated by an AI model or manually edited by the user.
     /// </summary>