clean: refacto User and Article repos for clarity

Simplified the code for creating and returning user and article entities in userRepository.go and articleRepository.go. Direct function calls to domain.FromDb(...) were replaced with the more descriptive mapping functions mapUserToDomain(...) and mapArticleToDomain(...). This ensures better code readability and understanding and provides a single, consistent way to map database entities to domain entities.

adapters/secondary/gateways/articleRepository.go

@@ -26,7 +26,7 @@ func (a *ArticleRepository) Get(id uint32) (domain.Article, error) {
 		return domain.Article{}, err
 	}
 
-	return domain.FromDb(article.ID, article.Title, article.Body, article.CreatedAt, article.UpdatedAt), nil
+	return mapArticleToDomain(article), nil
 }
 
 func (a *ArticleRepository) Create(article domain.Article) (domain.Article, error) {
@@ -41,13 +41,7 @@ func (a *ArticleRepository) Create(article domain.Article) (domain.Article, erro
 	var createdArticle entity.Article
 	creationResult.Scan(&createdArticle)
 
-	return domain.FromDb(
-			createdArticle.ID,
-			createdArticle.Title,
-			createdArticle.Body,
-			createdArticle.CreatedAt,
-			createdArticle.UpdatedAt),
-		nil
+	return mapArticleToDomain(createdArticle), nil
 }
 
 func (a *ArticleRepository) GetAll() []domain.Article {