export function buildPageNumbers(current: number, totalPages: number): (number | "...")[] {
  if (totalPages <= 7) return Array.from({ length: totalPages }, (_, i) => i + 1);

  const pages: (number | "...")[] = [1];
  if (current > 3) pages.push("...");
  for (let p = Math.max(2, current - 1); p <= Math.min(totalPages - 1, current + 1); p++) pages.push(p);
  if (current < totalPages - 2) pages.push("...");
  pages.push(totalPages);
  return pages;
}