.NET Workflows - Clean-up declarative docs and product-context. (#1134)

* Clean-up

* Rollback sample

---------

Co-authored-by: Roger Barreto <19890735+rogerbarreto@users.noreply.github.com>

dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/WorkflowTemplateVisitor.cs

@@ -22,6 +22,8 @@ internal sealed class WorkflowTemplateVisitor : DialogActionVisitor
     {
         this._rootId = workflowId;
         this._workflowModel = new WorkflowModel<string>(new RootTemplate(workflowId, typeInfo));
+
+        WorkflowDiagnostics.SetFoundryProduct();
     }
 
     public bool HasUnsupportedActions { get; private set; }