b2c-localization

Add translations and multi-language support to B2C Commerce storefronts. Use this skill whenever the user needs to translate a storefront, add a new locale, create or edit .properties resource bundles, display translated strings in templates, format dates or currencies for different regions, or build a language switcher. Also use when they mention Resource.msg, Resource.msgf, locale fallback, or i18n — even if they just say "we need French translations" or "make this page work in multiple languages".