feat: SEO backend data (1/4)

internal/infrastructure/persistence/database/migrate.go

@@ -17,7 +17,16 @@ func Migrate(db *gorm.DB, publicURL string) error {
 	if err := BackfillUserRoles(db); err != nil {
 		return err
 	}
-	return SeedDefaultSite(db, publicURL)
+	if err := SeedDefaultSite(db, publicURL); err != nil {
+		return err
+	}
+	if err := BackfillSiteTitleTemplates(db); err != nil {
+		return err
+	}
+	if err := BackfillArticleSlugs(db); err != nil {
+		return err
+	}
+	return ensureArticleSlugIndex(db)
 }
 
 const (