Add operation executor

Hcs.WebApp/BackgroundServices/Executors/15_7_0_1/NsiCommon/ExportAllRegistryElementsExecutor.cs

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+using Hcs.Broker;
+using Hcs.WebApp.Data.Hcs;
+
+namespace Hcs.WebApp.BackgroundServices.Executors._15_7_0_1.NsiCommon
+{
+    public class ExportAllRegistryElementsExecutor(IClient client, Operation operation) : ExecutorBase(client, operation)
+    {
+        public override async Task<string> ExecuteAsync(CancellationToken cancellationToken)
+        {
+            return await client.NsiCommon.RequestExportNsiItemAsync(1, Service.Async.NsiCommon.ListGroup.NSI, cancellationToken);
+        }
+    }
+}

Hcs.WebApp/BackgroundServices/Executors/ExecutorBase.cs

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+using Hcs.Broker;
+using Hcs.WebApp.Data.Hcs;
+
+namespace Hcs.WebApp.BackgroundServices.Executors
+{
+    public abstract class ExecutorBase(IClient client, Operation operation) : IExecutor
+    {
+        protected readonly IClient client = client;
+        protected readonly Operation operation = operation;
+
+        public abstract Task<string> ExecuteAsync(CancellationToken cancellationToken);
+    }
+}

Hcs.WebApp/BackgroundServices/Executors/ExecutorFactory.cs

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+using Hcs.Broker;
+using Hcs.WebApp.BackgroundServices.Executors._15_7_0_1.NsiCommon;
+using Hcs.WebApp.Data.Hcs;
+
+namespace Hcs.WebApp.BackgroundServices.Executors
+{
+    public class ExecutorFactory
+    {
+        public IExecutor CreateExecutor(IClient client, Operation operation)
+        {
+            switch (operation.Type)
+            {
+                case Operation.OperationType.NsiCommon_15_7_0_1_ExportAllRegistryElements:
+                    return new ExportAllRegistryElementsExecutor(client, operation);
+            }
+
+            throw new NotImplementedException();
+        }
+    }
+}

Hcs.WebApp/BackgroundServices/Executors/IExecutor.cs

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+namespace Hcs.WebApp.BackgroundServices.Executors
+{
+    public interface IExecutor
+    {
+        Task<string> ExecuteAsync(CancellationToken cancellationToken);
+    }
+}