feat: Implement ApiService with Dio for standardized API requests and responses using ApiResponse entity.

apps/mobile/packages/domain/lib/krow_domain.dart

@@ -6,6 +6,9 @@
 /// Note: Repository Interfaces are now located in their respective Feature packages.
 library;
 
+// Core
+export 'src/entities/core/services/api_service/api_response.dart';
+
 // Users & Membership
 export 'src/entities/users/user.dart';
 export 'src/entities/users/staff.dart';