function logAndNotifyRegistration logAndNotifyRegistration(event: EmailEntry["event"],attendee: WebhookAttendee,currency: string,): Promise<void> Log attendee registration and send consolidated webhook Used for single-event registrations Webhook sends are queued as pending work so they run in the background but complete before the edge runtime tears down the request context. Parameters event: EmailEntry["event"] attendee: WebhookAttendee currency: string Return Type Promise<void>