feat(Program.cs): Hosting-Unterstützung zu CommandManagerRunner hinzufügen

- Einführung von `Microsoft.Extensions.Hosting` in `DependencyInjection.cs`.
- Überladung für `RunCommandManagerRunner` hinzugefügt, um `IHost` zu akzeptieren.
- Aktualisiert `Program.cs`, um die neue Methode `RunCommandManagerRunner` zu verwenden.

EnvelopeGenerator.Terminal/DependencyInjection.cs

@@ -8,6 +8,7 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.EntityFrameworkCore;
 using EnvelopeGenerator.Application.Contracts.Services;
 using EnvelopeGenerator.Application.Services;
+using Microsoft.Extensions.Hosting;
 
 namespace EnvelopeGenerator.Terminal;
 
@@ -48,4 +49,6 @@ public static class DependencyInjection
         var runner = provider.GetRequiredService<AppRunner<CommandManager>>();
         return runner.RunAsync(args);
     }
+
+    public static Task<int> RunCommandManagerRunner(this IHost host, string[] args) => host.Services.RunCommandManagerRunner(args);
 }

EnvelopeGenerator.Terminal/Program.cs

@@ -14,6 +14,6 @@ public class Program
 
         var app = builder.Build();
 
-        return await app.Services.RunCommandManagerRunner(args);
+        return await app.RunCommandManagerRunner(args);
     }
 }