List allowed statuses for every new path

await db.$transaction(async (tx) => {
  await tx.$queryRaw`SELECT id FROM Member WHERE id = ${memberId} FOR UPDATE`;
  const e = await tx.membership.findUnique({ where: { memberId_planId } });
  if (e && !CAN_APPLY.includes(e.status)) throw new Error("not allowed");
  if (await tx.planRequest.findFirst({ where: { memberId, status: "pending" } }))
    throw new Error("already pending");
  await tx.planRequest.create({ data });
});