Function sanitize

packages/web/app/api/track/usage/route.ts:156–161

(value: string | undefined)

}

function sanitize(value: string | undefined): string | undefined {
  if (!value) return undefined
  // only allow alphanumeric, dash, underscore, slash, dot
  const sanitized = value.replace(/[^a-zA-Z0-9\-_/.]/g, "").slice(0, 100)
  return sanitized || undefined
}