export function getUserInitials(nameOrEmail: string): string {
  const parts = nameOrEmail.includes('@')
    ? nameOrEmail.split('@')[0].split(/[._-]/)
    : nameOrEmail.split(' ')

  return parts
    .filter(Boolean)
    .slice(0, 2)
    .map((part) => part[0].toUpperCase())
    .join('')
}