Client order id

// Mint a fresh, single-use id and record what you need before you submit.
const clientOrderId = `mm-${crypto.randomUUID()}`;

myOrders.set(clientOrderId, {
  timeInForce: "GTC",       // write-only on the API — record it yourself
  marketHash,
  submittedAt: Date.now(),
});

await fetch(`${API}/orders-v3`, authed({
  method: "POST",
  body: JSON.stringify({ orders: [{ ...order, clientOrderId }] }),
}));

// Later, on account:orders_v3_#{address}, look each update up by its clientOrderId.
// Or poll GET /orders-v3/client/{clientOrderId} when you need the current row.