feat: storage, language rules and migration

api/handlers/article/articleHandler.go

@@ -59,6 +59,8 @@ type baseArticleResponse struct {
 	Authors    []author.Byline   `json:"authors"`
 	CreatedAt  time.Time         `json:"created_at"`
 	UpdatedAt  time.Time         `json:"updated_at"`
+	Lang       string            `json:"lang"`
+	StoryID    uint32            `json:"story_id"`
 }
 
 type articleResponse struct {
@@ -117,6 +119,8 @@ func toBaseResponse(article domain.Article, format domain.BodyFormat, viewer acc
 		Authors:    authors,
 		CreatedAt:  article.CreatedAt,
 		UpdatedAt:  article.UpdatedAt,
+		Lang:       article.Lang,
+		StoryID:    article.StoryID,
 	}, nil
 }