new project stable version

lib/domain/usecase/get_certificates_usecase.dart

@@ -0,0 +1,13 @@
+import '../entities/certificate.dart';
+import '../repositories/certificate_repository.dart';
+import '../../core/result.dart';
+
+class GetCertificatesUsecase {
+  final CertificateRepository repository;
+
+  GetCertificatesUsecase(this.repository);
+
+  Future<Result<List<Certificate>>> call() async {
+    return await repository.getCertificates();
+  }
+}