feat: storage, language rules and migration

internal/infrastructure/persistence/mappers/siteLanguageMapper.go

@@ -0,0 +1,16 @@
+package mappers
+
+import (
+	"RenewCMS/internal/domain/language"
+	"RenewCMS/internal/infrastructure/persistence/models"
+)
+
+func SiteLanguageToDomain(m models.SiteLanguage) language.SiteLanguage {
+	return language.SiteLanguage{
+		SiteID:    m.SiteID,
+		Tag:       m.Lang,
+		IsDefault: m.IsDefault,
+		Enabled:   m.Enabled,
+		Confirmed: m.Confirmed,
+	}
+}