frontend and backend base setup

backend-go/internal/domain/repositories/user_repository.go

@@ -0,0 +1,9 @@
+package repositories
+
+import "actatempus_backend/internal/domain/entities"
+
+type UserRepository interface {
+	Create(user *entities.User) error
+	FindByEmail(email string) (*entities.User, error)
+	FindByID(id string) (*entities.User, error)
+}