kyx-i18n-translation

Add or update translations for a VitePress blog's multilingual configuration (src/.vitepress/config.ts). Use this skill when the user mentions 'add new tool', 'update keywords', 'translate', 'multilingual', 'i18n', or 'add feature description'. Responsible for synchronously updating the description and keywords across all 20 languages, and for updating the zh-CN UI text when necessary.