/add-localization

Add comprehensive number, date, and currency formatting based on user locale. Use JavaScript Intl API for native formatting capabilities. Create formatting utility functions for common patterns: currency, percentages, dates, times. Implement locale-aware components that automatically format values. Add timezone support with automatic conversion and display. Format currencies correctly with appropriate symbols and decimal places. Support regional number formats (comma vs period as decimal separator). Create date formatting presets: short, medium, long, relative. Add calendar localization for date pickers. Provide formatting examples and usage guide. Test with multiple locales to ensure accuracy.