Refactor identity assignment and sorting logic

ConstructIdentitiesAsync now uses _identitiesTags directly, bypassing ReadIdentitiesAsync. SortIdentitiesAsync performs an async batch read of identity keys and uses LastValue directly for sorting, removing synchronous calls for improved performance. Minor formatting change to DuplicateIdentityException.

Author: PTKu

src/AXSharp.connectors/src/AXSharp.Connector/Identity/TwinIdentityProvider.cs

@@ -1,4 +1,4 @@
-// AXSharp.Connector
+// AXSharp.Connector
 // Copyright (c) 2023 MTS spol. s r.o.,  and Contributors. All Rights Reserved.
 // Contributors: https://github.com/inxton/axsharp/graphs/contributors
 // See the LICENSE file in the repository root for more information.
@@ -238,7 +238,7 @@ public async Task WriteIdentities(IEnumerable<OnlinerULInt> identitiesToWrite)
     /// </summary>
     public async Task ConstructIdentitiesAsync(Func<OnlinerULInt, ulong> identityProvider = null)
     {
-        await WriteIdentities(AssignIdentities(await ReadIdentitiesAsync(), identityProvider));
+        await WriteIdentities(AssignIdentities(_identitiesTags, identityProvider));        
         await SortIdentitiesAsync();
     }
 
@@ -247,13 +247,14 @@ public async Task ConstructIdentitiesAsync(Func<OnlinerULInt, ulong> identityPro
     /// </summary>
     internal async Task SortIdentitiesAsync()
     {
-        await Task.Run(() =>
+        await Task.Run(async () =>
         {
             _connector?.Logger.Information("Sorting identities...");
+            await _connector?.ReadBatchAsync(_identities.Select(p => p.Key), eAccessPriority.High);
             _sortedIdentities.Clear();
             foreach (var identity in _identities)
             {
-                var key = identity.Key.LastValue == 0 ? identity.Key.GetAsync().Result : identity.Key.LastValue;
+                var key = identity.Key.LastValue;
                 if (!_sortedIdentities.ContainsKey(key))
                 {
                     _sortedIdentities.Add(key, identity.Value);
@@ -280,4 +281,4 @@ public class DuplicateIdentityException : Exception
     public DuplicateIdentityException(string message) : base(message)
     {
     }
-}
+}