Locale-map (jsonb) translatable attributes with a fallback chain for Eloquent; per-locale slugs via sluggable-for-laravel — native, zero third-party deps.

Single- and multi-language (json/jsonb locale-map) slugs for Eloquent: multiple columns per model, scoped per-locale uniqueness with engine-native indexes, locale-aware route binding, SEO slug history — native, zero third-party deps.