Vibe's steps test answers Search and Tools locally: main went red when search_openvibe made two outside calls and the wait for Vibe's message ran out (#237)

ddiff --git a/test/vibe-how-steps.test.js b/test/vibe-how-steps.test.js
iindex e832426..bfa787b 100644
---- a/test/vibe-how-steps.test.js
++++ b/test/vibe-how-steps.test.js
@@@ -27,7 +27,16 @@ async function lastAi(slug) {
  }
  
  t('boot', async () => {
--    h = await boot({ env: { CHAT_WEB_URL: 'https://openvibe.chat' } });
++    // Search and Tools answer here, not on the real network: the steps are what this file checks, and a slow outside
++    // answer would only make the wait for Vibe's message run out.
++    const stub = require('http').createServer((req, res) => {
++        res.writeHead(200, { 'content-type': 'application/json' });
++        res.end(JSON.stringify(req.url.startsWith('/api/v1/') ? { results: [] } : { title: 'Keyboards', text: 'Keychron K2 $59', links: [] }));
++    });
++    await new Promise((r) => stub.listen(0, '127.0.0.1', r));
++    stub.unref();
++    const local = `http://127.0.0.1:${stub.address().port}`;
++    h = await boot({ env: { CHAT_WEB_URL: 'https://openvibe.chat', CHAT_SEARCH_URL: local, CHAT_TOOLS_URL: local } });
      aiClient = require('../server/ai/client');
      ann = h.addUser('ann', { subject: ids.newId('user') });
      await h.ctx.upsertUser(h.live.users.get(ann.id));