Server-render the front door's navigation in the first HTML (#832)

ddiff --git a/server/home/render.js b/server/home/render.js
iindex caa4d1d1..cfa0e4fa 100644
---- a/server/home/render.js
++++ b/server/home/render.js
@@@ -496,7 +496,7 @@ function render({ releaseId = '' } = {}) {
      })) + seo.jsonLdTag(seo.jsonLd.itemList(sitesHeading(), OPEN.map((site) => ({ name: siteName(site), url: `https://${site.host}/`, description: site.what })))) + seo.jsonLdTag(seo.jsonLd.faq(faqPairs()));
      const card = social.url('network', 'https://openvibe.network/shared') || 'https://openvibe.network/assets/logo-512.png';
      const summary = summaryOf(catalog);
--    const html = withSameAs(lookBoot.apply(fs.readFileSync(SHELL, 'utf8'))).replace('<div id="navbar-mount"></div>', '<div id="navbar-mount"></div>' + summary.body + require('openvibe-shared/frame').noscriptNav({ name: 'OpenVibe.Network', links: [{ label: 'Sign in', href: '/login' }, { label: 'Themes', href: '/themes' }] })).replace('<h1>Go live, chat, play<br><span class="grad">and get things done.</span></h1>', () => kit.pageHead({ title: 'Go live, chat, play and get things done.', icon: 'home', lede: 'Your places, people and projects across OpenVibe.' })).replace('<!--OV:HOME-->', body(catalog, act)).replace('<!--OV:INTENTS-->', intents(catalog, act.popularity)).replace('<!--OV:CONSTELLATION-->', () => orbit() + numbers(catalog, act)).replaceAll('__OV_CARD__', card).replace('<!--OV:SITES-->', String(SITE_COUNT)).replace('<!--OV:COUNT-->', catalog.tools.length ? String(catalog.tools.length) : 'free').replace('<div id="ov-footer"></div>', require('openvibe-shared/footer').ssr({ service: 'network', variant: 'full' })).replace('</head>', () => `${ld}\n<link rel="stylesheet" href="${require('openvibe-shared/serve').url('kit.css')}"><script src="${require('openvibe-shared/serve').url('kit-web.js')}" defer></script>\n${summary.head}\n${boost.meta(releaseId)}\n</head>`);
++    const html = withSameAs(lookBoot.apply(fs.readFileSync(SHELL, 'utf8'))).replace('<div id="navbar-mount"></div>', require('openvibe-shared/frame').serverNav({ name: 'OpenVibe.Network', service: 'network', home: '/', links: [{ label: 'Link', href: 'https://openvibe.link/' }, { label: 'My Account', href: '/my' }, { label: 'Wallet', href: '/wallet' }, { label: 'Themes', href: '/themes' }] }) + summary.body).replace('<h1>Go live, chat, play<br><span class="grad">and get things done.</span></h1>', () => kit.pageHead({ title: 'Go live, chat, play and get things done.', icon: 'home', lede: 'Your places, people and projects across OpenVibe.' })).replace('<!--OV:HOME-->', body(catalog, act)).replace('<!--OV:INTENTS-->', intents(catalog, act.popularity)).replace('<!--OV:CONSTELLATION-->', () => orbit() + numbers(catalog, act)).replaceAll('__OV_CARD__', card).replace('<!--OV:SITES-->', String(SITE_COUNT)).replace('<!--OV:COUNT-->', catalog.tools.length ? String(catalog.tools.length) : 'free').replace('<div id="ov-footer"></div>', require('openvibe-shared/footer').ssr({ service: 'network', variant: 'full' })).replace('</head>', () => `${ld}\n<link rel="stylesheet" href="${require('openvibe-shared/serve').url('kit.css')}"><script src="${require('openvibe-shared/serve').url('kit-web.js')}" defer></script>\n${summary.head}\n${boost.meta(releaseId)}\n</head>`);
      pageCache = { key, html, etag: '"' + crypto.createHash('sha1').update(html).digest('base64url').slice(0, 20) + '"' };
      return pageCache;
  }
ddiff --git a/test/home-front-door.test.js b/test/home-front-door.test.js
iindex 198b0c57..19a01ba7 100644
---- a/test/home-front-door.test.js
++++ b/test/home-front-door.test.js
@@@ -79,6 +79,12 @@ assert.deepStrictEqual(code, [{ code: 'FALL10', title: '10% off a watch', url: '
  // The page with nothing live: the empty state invites a browser go-live.
  activity._set({ live: [], pastes: [], posts: [] });
  let { html } = home.render();
++// The first HTML carries the site's navigation for a crawler; the browser navbar replaces it on boot.
++const serverNav = /<div id="navbar-mount"><nav class="openvibe-navbar"[^>]*data-ov-server-nav="true"[\s\S]*?<\/nav><\/div>/.exec(html);
++assert.ok(serverNav, 'the first HTML has the server navigation');
++for (const [label, href] of [['My Account', '/my'], ['Wallet', '/wallet'], ['Themes', '/themes']]) {
++    assert.ok(serverNav[0].includes(`href="${href}"`) && serverNav[0].includes(`>${label}</a>`), `the server nav links ${label}`);
++}
  assert.ok(/<form class="intent-bar" action="https:\/\/openvibe.tools\/search" method="get"/.test(html), 'the search works without JavaScript (a tool search)');
  for (const [id, , verb, , href] of home.INTENTS) {
      assert.ok(html.includes(`href="${href}" data-id="${id}"`), `intent ${id} links to ${href}`);