feat(esppOrderLoader): логика синхронизации

PARR.EsppOrderLoader/ParrEsppOrderLoaderInstaller.cs

@@ -3,6 +3,7 @@ using Microsoft.Extensions.DependencyInjection;
 using PARR.BLL;
 using PARR.DAL;
 using PARR.EsppApi;
+using PARR.EsppOrderLoader.Services;
 using PARR.EsppOrderLoader.Settings;
 
 namespace PARR.EsppOrderLoader
@@ -20,6 +21,7 @@ namespace PARR.EsppOrderLoader
             services.AddSingleton(settings);
 
             services.AddTransient<IEsppOrderLoader, EsppOrderLoader>();
+            services.AddTransient<IOrderItemService, OrderItemService>();
         }
 
         public static IConfigurationBuilder AddEsppOrderLoaderConfigurations(this IConfigurationBuilder builder, IServiceCollection services)