fix circular dependency: remove unused AuthService from QrAuthService

src/qr-auth/qr-auth.service.ts

@@ -5,7 +5,6 @@ import { randomUUID } from 'node:crypto';
 import * as qrcode from 'qrcode';
 import { PinoLogger } from 'nestjs-pino';
 import { PrismaService } from '../prisma/prisma.service';
-import { AuthService } from '../auth/auth.service';
 import { JwtPayload } from '../auth/strategies/jwt.strategy';
 
 @Injectable()
@@ -14,7 +13,6 @@ export class QrAuthService {
     private readonly prisma: PrismaService,
     private readonly jwtService: JwtService,
     private readonly configService: ConfigService,
-    private readonly authService: AuthService,
     private readonly logger: PinoLogger,
   ) {
     this.logger.setContext(QrAuthService.name);