Added a Send to menu to every chat message and kept restrictions when sending content on (#1124)

app/MindWork AI Studio/Assistants/VisualBriefing/VisualBriefingFailureCode.cs

@@ -18,6 +18,11 @@ public enum VisualBriefingFailureCode
     /// </summary>
     PROVIDER_NOT_SELECTED,
 
+    /// <summary>
+    /// The selected provider may not see the content of the briefing.
+    /// </summary>
+    PROVIDER_NOT_ALLOWED,
+
     /// <summary>
     /// The selected model lacks a required capability.
     /// </summary>