fix issues in core

core/shared/domain/DomainEvent.ts

@@ -7,4 +7,7 @@ export interface DomainEvent<T = unknown> {
 
 export interface DomainEventPublisher {
   publish(event: DomainEvent): Promise<void>;
-}
+}
+
+// Alias for backward compatibility
+export interface IDomainEvent<T = unknown> extends DomainEvent<T> {}

core/shared/domain/index.ts

@@ -1,4 +1,5 @@
 export * from './Entity';
 export * from './ValueObject';
 export * from './Service';
-export * from './Option';
+export * from './Option';
+export * from './DomainEvent';