export function formatEmailValue(value: unknown): string {
  if (value === null || value === undefined || value === '') {
    return 'N/A'
  }

  if (value instanceof Date) {
    return value.toISOString()
  }

  if (Array.isArray(value)) {
    return value.length > 0 ? value.map(formatEmailValue).join(', ') : 'N/A'
  }

  if (typeof value === 'object') {
    return JSON.stringify(value)
  }

  return String(value)
}