feat: add locales parameter to formatDate for internationalization su…

[cfngc4594]

// Before (only en-US)
formatDate(new Date(), { year: 'numeric', month: 'long', day: 'numeric' });
// → "December 19, 2025"

// After – custom locale
formatDate(new Date(), { year: 'numeric', month: 'long', day: 'numeric' }, 'fr-FR');
// → "19 décembre 2025"

formatDate(new Date(), { day: '2-digit', month: '2-digit', year: 'numeric' }, 'de-DE');
// → "19.12.2025"

formatDate(new Date(), { year: 'numeric', month: 'long', day: 'numeric' }, 'zh-CN');
// → "2025年12月19日"

[vercel]

@cfngc4594 is attempting to deploy a commit to the tablecn Team on Vercel.

A member of the Team first needs to authorize it.