Post-creation confirmation page showing shareable event URL with
copy-to-clipboard and fallback feedback on failure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Form with client-side validation, server error handling, aria-invalid/
aria-describedby for a11y, localStorage persistence via useEventStorage
composable. Routes for /create and /events/:token.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>