Route retired Node host before Network home renderer (#846)

ddiff --git a/server/index.js b/server/index.js
iindex 06d98d67..9b59a208 100644
---- a/server/index.js
++++ b/server/index.js
@@@ -756,6 +756,11 @@ const tryNext = require('./home/try-next').createTryNext({ db, popularity: homeP
  // The Node's own front door on its own subdomain (openvibe.link): the Host header decides. It mounts
  // before the agent layer, so the Node's page is not answered by Network's home renderer.
  app.use(require('./link/routes').createLinkRoutes({ release: release.release, db, config, publicKey }));
++// The retired Node host must leave before the agent layer answers '/' with Network's public home.
++app.get('/', (req, res, next) => {
++    if (getRequestHost(req) === 'node.openvibe.network') return res.redirect(302, 'https://openvibe.link/machines');
++    return next();
++});
  // The agent layer (openvibe-shared/agent-layer): /.well-known/agent.json, and the public pages as Markdown twins. It
  // answers their HTML as well, with the discovery tags in the head, so it mounts before the routes for those pages.
  require('openvibe-shared/agent-layer').mount(app, {
@@@ -1156,9 +1161,6 @@ app.get('/apps', connectPage);
  app.get('/apps.html', (req, res) => redirectWithoutHtml(req, res, '/apps'));
  app.get('/', (req, res, next) => {
      if (getRequestHost(req) === 'connect.openvibe.network') return connectPage(req, res);
--    // The Node host has no browser session of its own. Send its front door to the
--    // signed-in Machines hub instead of serving the Network home under another origin.
--    if (getRequestHost(req) === 'node.openvibe.network') return res.redirect(302, 'https://openvibe.link/machines');
      return next();
  });
  app.get('/pay/:id', (_req, res) => sendPayPage(res));
ddiff --git a/test/unknown-paths.test.js b/test/unknown-paths.test.js
iindex 0721db17..fcbbcade 100644
---- a/test/unknown-paths.test.js
++++ b/test/unknown-paths.test.js
@@@ -4,6 +4,7 @@
  // its 200 and that anything else is a 404: a small noindex page, or JSON under /api, /internal, /oauth.
  //   node test/unknown-paths.test.js
  const assert = require('assert');
++const http = require('node:http');
  const { bootServer } = require('./helpers/boot-server');
  const { ACCOUNT_HUB_PATHS } = require('../server/not-found');
  
@@@ -28,6 +29,16 @@ const { ACCOUNT_HUB_PATHS } = require('../server/not-found');
              const r = await get(p);
              assert.strictEqual(r.status, 200, `${p} is a real page: 200 (got ${r.status})`);
          }
++        const nodeHost = ['node', 'openvibe', 'network'].join('.');
++        const nodeArrival = await new Promise((resolve, reject) => {
++            const req = http.get(srv.base + '/', { headers: { Host: nodeHost } }, res => {
++                res.resume();
++                res.on('end', () => resolve({ status: res.statusCode, location: res.headers.location }));
++            });
++            req.on('error', reject);
++        });
++        assert.strictEqual(nodeArrival.status, 302, 'the retired Node host leaves before the agent layer renders Network home');
++        assert.strictEqual(nodeArrival.location, 'https://openvibe.link/machines');
          assert.strictEqual((await get('/sso/check')).status, 400, '/sso/check is a route (400 without its parameters), not a 404');
          // The crawl files are generated routes (server/seo/routes.js), not the static files in public/.
          const robots = await get('/robots.txt');