message: chore(exchange): linter errors
diff: import { OrderSide } from '@energyweb/exchange-core';
  import { Test, TestingModule } from '@nestjs/testing';
  import BN from 'bn.js';
  +import { plainToClass } from 'class-transformer';
  import { Asset } from '../asset/asset.entity';
  +import { BundleItem } from '../bundle/bundle-item.entity';
  +import { BundleTrade } from '../bundle/bundle-trade.entity';
  +import { Bundle } from '../bundle/bundle.entity';
  +import { BundleService } from '../bundle/bundle.service';
  import { Order } from '../order/order.entity';
  import { OrderService } from '../order/order.service';
  import { Trade } from '../trade/trade.entity';
  @@ -11,11 +16,6 @@ import { TransferDirection } from '../transfer/transfer-direction';
  import { Transfer } from '../transfer/transfer.entity';
  import { TransferService } from '../transfer/transfer.service';
  import { AccountBalanceService } from './account-balance.service';
  -import { BundleService } from '../bundle/bundle.service';
  -import { Bundle } from '../bundle/bundle.entity';
  -import { BundleItem } from '../bundle/bundle-item.entity';
  -import { BundleTrade } from '../bundle/bundle-trade.entity';
  -import { plainToClass } from 'class-transformer';
  jest.mock('../trade/trade.service');
  jest.mock('../transfer/transfer.service');
  