Add WebSite + Organization JSON-LD to the home page (#109)

ddiff --git a/server/views/index.js b/server/views/index.js
iindex 3c1b8ea..916ccbc 100644
---- a/server/views/index.js
++++ b/server/views/index.js
@@@ -13,6 +13,7 @@
   */
  const layoutLib = require('../render/layout');
  const kit = require('openvibe-shared/kit');
++const seo = require('openvibe-shared/seo');
  // The short home (the owner's rule, 2026-10-30): pick blocks and folds.
  const { pickBlock, pickRules, foldAround } = require('../render/short');
  const sc = require('openvibe-shared/showcase');
@@@ -161,6 +162,7 @@ function home({ themes } = {}) {
      return layout({
          title: null, description: 'Your look, everywhere: one theme across every OpenVibe site, the same theme as code for the web, Android and iOS, and AI design on it, ranked honestly by the Design Arena.',
          path: '/', body: `<div class="ds-wrap">${body}</div>`, active: '/',
++        jsonLd: [seo.jsonLd.website({ name: 'OpenVibe.Design', url: 'https://openvibe.design/', description: 'Your look, everywhere: one theme across every OpenVibe site, the same theme as code for the web, Android and iOS, and AI design on it, ranked honestly by the Design Arena.' }), seo.jsonLd.organization()],
          // The rule that shows the picked scene of the pick block: one per scene, written for this page.
          inlineStyles: [`@supports selector(:has(*)){@media (max-width:640px){${pickRules('scenes', arts.map((_, i) => `ds-scene-${i}`))}}}`],
      });
ddiff --git a/test/pages.test.js b/test/pages.test.js
iindex 6ef913a..01ab2f2 100644
---- a/test/pages.test.js
++++ b/test/pages.test.js
@@@ -19,6 +19,10 @@ const { assetVersion } = require('../server/assets');
          assert.match(r.text, /href="\/tokens"/, 'the nav and the home lead to the tokens');
          assert.match(r.text, /<a class="ds-swatch" href="\/t\/aurora">[\s\S]*?<span class="ds-swatch-name">Aurora<\/span>/);
          assert.match(r.text, /<main id="main"/);
++        const ld = [...r.text.matchAll(/<script type="application\/ld\+json">([\s\S]*?)<\/script>/g)].map((m) => JSON.parse(m[1])).flatMap((b) => b['@graph'] || [b]);
++        assert.ok(ld.some((x) => x['@type'] === 'WebSite'), 'home has WebSite JSON-LD');
++        const org = ld.find((x) => x['@type'] === 'Organization');
++        assert.ok(org && Array.isArray(org.sameAs) && org.sameAs.includes('https://github.com/OpenVibers'), 'home has the OpenVibe Organization');
          assert.strictEqual(r.headers.get('cache-control'), 'public, max-age=120');
          assert.match(r.headers.get('vary'), /Cookie/i);
      });