src/lib/format.ts

export function maskPhone(phone: string) {
  const p = phone.replace(/\s+/g, "")
  if (p.length < 7) return p
  return `${p.slice(0, 3)}****${p.slice(-4)}`
}

export function formatPct(v: number) {
  if (!Number.isFinite(v)) return "0%"
  return `${Math.round(v * 100)}%`
}