export function sessionUserId(value: unknown): number | null {
  const id = typeof value === "string" && /^\d+$/.test(value) ? Number(value) : NaN;
  return Number.isSafeInteger(id) && id > 0 ? id : null;
}

export function databaseUserId(value: bigint): number | null {
  const id = Number(value);
  return Number.isSafeInteger(id) && id > 0 ? id : null;
}