Add whitelisting and admin

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

@@ -131,6 +131,7 @@ public static class PostgreSqlMappers
             AvatarUrl = entity.AvatarUrl,
             TelegramChannel = entity.TelegramChannel,
             Id = entity.Id, // Assuming Id is the primary key for UserEntity
+            IsAdmin = entity.IsAdmin,
             Accounts = entity.Accounts?.Select(MapAccountWithoutUser).ToList() ?? new List<Account>()
         };
     }
@@ -163,7 +164,8 @@ public static class PostgreSqlMappers
             Name = user.Name,
             AgentName = user.AgentName,
             AvatarUrl = user.AvatarUrl,
-            TelegramChannel = user.TelegramChannel
+            TelegramChannel = user.TelegramChannel,
+            IsAdmin = user.IsAdmin
         };
     }