Доработана QR авторизация

PlaylistShared.Api/Controllers/YandexAccountController.cs

@@ -64,7 +64,7 @@ public class YandexAccountController : ControllerBase
         var user = await _userManager.FindByIdAsync(userId.ToString());
         if (user == null) return Unauthorized();
 
-        var qr = await _yandexService.GenerateQrAsync(user);
+        var qr = await _yandexService.GetQrOrGenerate(user);
 
         return Ok(ApiResponse<YandexAuthQr>.Ok(qr));
     }