feat: roles system backend

internal/infrastructure/persistence/models/articleModel.go

@@ -13,6 +13,7 @@ type Article struct {
 	Body              string
 	IsOnline          bool      `gorm:"not_null;default:false"`
 	SiteID            uint32    `gorm:"index"`
+	CreatedBy         uint32    `gorm:"not null;default:0"`
 	Slug              string    `gorm:"size:100;not null;default:''"`
 	Excerpt           string    `gorm:"size:300;not null;default:''"`
 	SEOTitle          string    `gorm:"column:seo_title;size:120;not null;default:''"`