Fix perf with cache

src/Managing.Infrastructure.Database/PostgreSql/PostgreSqlMappers.cs

@@ -129,7 +129,27 @@ public static class PostgreSqlMappers
             AgentName = entity.AgentName,
             AvatarUrl = entity.AvatarUrl,
             TelegramChannel = entity.TelegramChannel,
-            Id = entity.Id // Assuming Id is the primary key for UserEntity
+            Id = entity.Id, // Assuming Id is the primary key for UserEntity
+            Accounts = entity.Accounts?.Select(MapAccountWithoutUser).ToList() ?? new List<Account>()
+        };
+    }
+
+    // Helper method to map AccountEntity without User to avoid circular reference
+    private static Account MapAccountWithoutUser(AccountEntity entity)
+    {
+        if (entity == null) return null;
+
+        return new Account
+        {
+            Id = entity.Id,
+            Name = entity.Name,
+            Exchange = entity.Exchange,
+            Type = entity.Type,
+            Key = entity.Key,
+            Secret = entity.Secret,
+            User = null, // Don't map User to avoid circular reference
+            Balances = new List<Balance>(), // Empty list for now, balances handled separately if needed
+            IsGmxInitialized = entity.IsGmxInitialized
         };
     }