Added IAsyncInitialization to host startup

Toolkit.Foundation/AppService.cs

@@ -2,19 +2,24 @@
 
 namespace Toolkit.Foundation;
 
-public class AppService(IEnumerable<IInitialization> initializers,
+public class AppService(IEnumerable<IInitialization> initializations,
+    IEnumerable<IAsyncInitialization> asyncInitializations,
     IPublisher publisher) :
     IHostedService
 {
-    public Task StartAsync(CancellationToken cancellationToken)
+    public async Task StartAsync(CancellationToken cancellationToken)
     {
-        foreach (IInitialization initializer in initializers)
+        foreach (IInitialization initialization in initializations)
         {
-            initializer.Initialize();
+            initialization.Initialize();
+        }
+
+        foreach (IAsyncInitialization initialization in asyncInitializations)
+        {
+            await initialization.Initialize();
         }
 
         publisher.Publish<StartedEventArgs>();
-        return Task.CompletedTask;
     }
 
     public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;

Toolkit.Foundation/ComponentHost.cs

@@ -4,7 +4,8 @@ using Microsoft.Extensions.Hosting;
 namespace Toolkit.Foundation;
 
 public class ComponentHost(IServiceProvider services,
-    IEnumerable<IInitialization> initializers,
+    IEnumerable<IInitialization> initializations,
+    IEnumerable<IAsyncInitialization> asyncInitializations,
     IEnumerable<IHostedService> hostedServices) :
     IComponentHost
 {
@@ -22,9 +23,14 @@ public class ComponentHost(IServiceProvider services,
 
     public async Task StartAsync(CancellationToken cancellationToken = default)
     {
-        foreach (IInitialization initializer in initializers)
+        foreach (IInitialization initialization in initializations)
         {
-            initializer.Initialize();
+            initialization.Initialize();
+        }
+
+        foreach (IAsyncInitialization initialization in asyncInitializations)
+        {
+            await initialization.Initialize();
         }
 
         foreach (IHostedService service in hostedServices)

Toolkit.Foundation/DefaultHostBuilder.cs

@@ -64,7 +64,7 @@ public class DefaultHostBuilder :
                 services.AddHandler<NavigateHandler>();
                 services.AddHandler<NavigateBackHandler>();
 
-                services.AddInitializer<ComponentInitializer>();
+                services.AddInitialization<ComponentInitializer>();
                 services.AddHostedService<AppService>();
             });
     }

Toolkit.Foundation/IServiceCollectionExtensions.cs

@@ -90,11 +90,19 @@ public static class IServiceCollectionExtensions
         return services;
     }
 
-    public static IServiceCollection AddInitializer<TInitializer>(this IServiceCollection services)
-        where TInitializer : class,
+    public static IServiceCollection AddInitialization<TInitialization>(this IServiceCollection services)
+        where TInitialization : class,
         IInitialization
     {
-        services.AddTransient<IInitialization, TInitializer>();
+        services.AddTransient<IInitialization, TInitialization>();
+        return services;
+    }
+
+    public static IServiceCollection AddAsyncInitialization<TInitialization>(this IServiceCollection services)
+        where TInitialization : class,
+        IAsyncInitialization
+    {
+        services.AddTransient<IAsyncInitialization, TInitialization>();
         return services;
     }