feat(Client): statische Klasse zur Behandlung des Standarddienstanbieters mit „Lazy Loading“ erstellt

src/Leanetec.EConnect.Client/Client.cs

@@ -0,0 +1,31 @@
+using MediatR;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Leanetec.EConnect.Client;
+
+/// <summary>
+/// Provides a lazily initialized <see cref="IServiceProvider"/> for accessing the EConnect client services,
+/// including an <see cref="IMediator"/> instance for sending and publishing messages.
+/// </summary>
+public static class Client
+{
+    /// <summary>
+    /// Lazily initializes the <see cref="IServiceProvider"/> that registers and builds the EConnect client services.
+    /// </summary>
+    private static readonly Lazy<IServiceProvider> _serviceProvider = new(() =>
+    {
+        var services = new ServiceCollection();
+        services.AddEConnectClient();
+        return services.BuildServiceProvider();
+    });
+
+    /// <summary>
+    /// Gets the initialized <see cref="IServiceProvider"/> that provides access to registered EConnect client services.
+    /// </summary>
+    public static IServiceProvider Provider => _serviceProvider.Value;
+
+    /// <summary>
+    /// Gets the <see cref="IMediator"/> instance used for sending commands, queries, and publishing events within the EConnect client.
+    /// </summary>
+    public static IMediator Mediator => Provider.GetRequiredService<IMediator>();
+}