restructure project for part 2

Hyperbar.Widget/WidgetEnumerator.cs

@@ -4,7 +4,8 @@ using System.Runtime.Loader;
 
 namespace Hyperbar.Widget;
 
-public class WidgetEnumerator(IHostEnvironment hostEnvironment, 
+public class WidgetEnumerator(IFactory<Type, IWidget> factory,
+    IHostEnvironment hostEnvironment, 
     IMediator mediator) :
     INotificationHandler<Enumerate<IWidget>>
 {
@@ -21,10 +22,17 @@ public class WidgetEnumerator(IHostEnvironment hostEnvironment,
                                 .SelectMany(assemblyDirectory => Directory.GetFiles(assemblyDirectory, "*.dll"))
             ];
 
-            Parallel.ForEach(assemblyPaths, (string assemblyPath) =>
+            Parallel.ForEach(assemblyPaths, async (string assemblyPath) =>
             {
                 Assembly assembly = AssemblyLoadContext.Default.LoadFromAssemblyPath(assemblyPath);
-                mediator.PublishAsync(new Created<Assembly>(assembly));
+                if (assembly.GetTypes().FirstOrDefault(x => typeof(IWidget).IsAssignableFrom(x)) is Type widgetType)
+                {
+                    if (factory.Create(widgetType) is IWidget widget)
+                    {
+                       await mediator.PublishAsync(new Created<IWidget>(widget),
+                           cancellationToken);
+                    }
+                }
             });
         }