fix issues in core

core/identity/domain/services/RatingUpdateService.ts

@@ -9,6 +9,8 @@ import { UserRating } from '../value-objects/UserRating';
  * Centralizes rating calculation logic and ensures consistency across the system.
  */
 export class RatingUpdateService implements IDomainService {
+  readonly serviceName = 'RatingUpdateService';
+  
   constructor(
     private readonly userRatingRepository: IUserRatingRepository
   ) {}