chore(application): add IForgingBlazorApplication and IForgingBlazorA…

src/ForgingBlazor/ForgingBlazorApplication.cs

@@ -9,12 +9,11 @@
 using Microsoft.Extensions.Options;
 using NetEvolve.ForgingBlazor.Components.Administration;
 using NetEvolve.ForgingBlazor.Configurations;
-using NetEvolve.ForgingBlazor.Extensibility;
 
 /// <summary>
 /// Represents a ForgingBlazor application that can be configured and executed.
 /// </summary>
 public sealed class ForgingBlazorApplication : IForgingBlazorApplication
 {
     /// <summary>
     /// The underlying ASP.NET Core web application.
@@ -32,7 +31,7 @@
     /// </summary>
     /// <param name="args">The command-line arguments passed to the application.</param>
     /// <returns>A configured <see cref="IForgingBlazorApplicationBuilder"/> instance with default services.</returns>
     public static IForgingBlazorApplicationBuilder CreateDefaultBuilder(string[] args) =>
         new ForgingBlazorApplicationBuilder(args).AddHostingServices().AddConfigurations();
 
     /// <summary>

src/ForgingBlazor/ForgingBlazorApplicationBuilder.cs

@@ -6,12 +6,11 @@
 using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
-using NetEvolve.ForgingBlazor.Extensibility;
 
 /// <summary>
 /// Internal implementation of <see cref="IForgingBlazorApplicationBuilder"/> that configures and builds a ForgingBlazor application.
 /// </summary>
 internal sealed class ForgingBlazorApplicationBuilder : IForgingBlazorApplicationBuilder
 {
     /// <summary>
     /// The underlying ASP.NET Core web application builder.
@@ -41,7 +40,7 @@
     /// Builds and returns a configured <see cref="IForgingBlazorApplication"/> instance.
     /// </summary>
     /// <returns>A configured <see cref="ForgingBlazorApplication"/> instance ready to run.</returns>
     public IForgingBlazorApplication Build() => new ForgingBlazorApplication(_builder.Build());
 
     /// <summary>
     /// Configures the application's configuration settings from various sources including JSON, YAML, environment variables, and user secrets.

src/ForgingBlazor/ForgingBlazorApplicationBuilderExtensions.cs

@@ -3,7 +3,6 @@
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.Extensions.DependencyInjection;
 using NetEvolve.ForgingBlazor.Configurations;
-using NetEvolve.ForgingBlazor.Extensibility;
 
 /// <summary>
 /// Provides extension methods for <see cref="IForgingBlazorApplicationBuilder"/> to configure hosting and application services.
@@ -28,7 +27,7 @@
     /// <returns>The <see cref="IForgingBlazorApplicationBuilder"/> for method chaining.</returns>
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="builder"/> is null.</exception>
     /// <exception cref="InvalidOperationException">Thrown when the builder is not of type <see cref="ForgingBlazorApplicationBuilder"/> or when hosting services have already been registered.</exception>
     public static IForgingBlazorApplicationBuilder AddHostingServices(this IForgingBlazorApplicationBuilder builder)
     {
         ArgumentNullException.ThrowIfNull(builder);
         if (builder is not ForgingBlazorApplicationBuilder forgingBlazorApplicationBuilder)
@@ -60,7 +59,7 @@
     /// <returns>The <see cref="IForgingBlazorApplicationBuilder"/> for method chaining.</returns>
     /// <exception cref="ArgumentNullException">Thrown when <paramref name="builder"/> is null.</exception>
     /// <exception cref="InvalidOperationException">Thrown when the builder is not of type <see cref="ForgingBlazorApplicationBuilder"/> or when configuration services have already been registered.</exception>
     public static IForgingBlazorApplicationBuilder AddConfigurations(this IForgingBlazorApplicationBuilder builder)
     {
         ArgumentNullException.ThrowIfNull(builder);
         if (builder is not ForgingBlazorApplicationBuilder forgingBlazorApplicationBuilder)