Доработан менеджер состояний.

BotPages.Core/Navigation/InMemoryStateStore.cs

@@ -6,17 +6,21 @@
     /// </summary>
     public sealed class InMemoryStateStore : IStateStore
     {
-        private readonly Dictionary<long, UserState> _store = new();
+        private readonly Dictionary<(string chatClientId, long userId), UserState> _store = new();
 
         /// <summary>
         /// Получает состояние пользователя, создавая новое при отсутствии.
         /// </summary>
-        public Task<UserState> GetAsync(long userId, CancellationToken ct)
+        public Task<UserState> GetAsync(string chatClientId, long userId, CancellationToken ct)
         {
-            if (!_store.TryGetValue(userId, out var st))
+            if (!_store.TryGetValue((chatClientId, userId), out var st))
             {
-                st = new UserState { UserId = userId };
-                _store[userId] = st;
+                st = new UserState 
+                {
+                    UserId = userId, 
+                    ChatClientId = chatClientId,
+                };
+                _store[(chatClientId, userId)] = st;
             }
             return Task.FromResult(st);
         }
@@ -26,7 +30,7 @@
         /// </summary>
         public Task SaveAsync(UserState state, CancellationToken ct)
         {
-            _store[state.UserId] = state;
+            _store[(state.ChatClientId, state.UserId)] = state;
             return Task.CompletedTask;
         }
     }