Configuración del webhook.

SUBMITTED   accepted by BroadNet, queued for the network
SENT        handed to the operator or channel
DELIVERED   confirmed on the handset
READ        opened by the recipient (channels that report reads, e.g. WhatsApp)
FAILED      not delivered
REJECTED    refused by the operator or channel

import express from "express";

const app = express();

app.post("/webhooks/broadnet", express.json(), async (req, res) => {
  // Store the raw status update first, then acknowledge.
  // Field names per channel are in the OpenAPI spec.
  await db.statusUpdates.insert({ receivedAt: new Date(), body: req.body });
  res.sendStatus(200);
});