i18n-localization

Internationalization (i18n) and localization (l10n) for web applications. Implements proper message formatting, locale routing, RTL support, and dynamic translation loading.

Translation File Structure

BAD: Flat structure, mixed namespaces

// messages/en.json
{
  "welcomeMessage": "Welcome",
  "homePageTitle": "Home",
  "userProfileName": "Name",
  "userProfileEmail": "Email",
  "checkoutButtonSubmit": "Submit Order"
}