Fix SEO/UX audit gaps: canonical tags, org schema, nav, header claims

Add canonical URLs and a sitewide Organization JSON-LD (linked via @id
to page-specific LocalBusiness/Service/Article schemas), move FAQ and
Reviews into the top nav, attach the 24/7 support claim to a tooltip
on the header badge instead of leaving it unexplained, drop the
unverifiable incidents_resolved stat from the hero terminal animation,
and clean up the empty-reviews state instead of showing a thin
placeholder.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013otXCiTZsxdZ4SJKZ9wUky

public-site/app/o-kompanii/page.jsx

@@ -10,6 +10,7 @@ export const metadata = {
   title: 'О компании',
   description:
     'TopSysOps — IT-аутсорсинг и техподдержка с 2023 года. Команда 20+ специалистов, штаб-квартира в Санкт-Петербурге, работаем с клиентами по всей России.',
+  alternates: { canonical: '/o-kompanii' },
 };
 
 const FACTS = [
@@ -47,6 +48,7 @@ export default async function AboutPage() {
   const orgSchema = {
     '@context': 'https://schema.org',
     '@type': 'Organization',
+    '@id': `${process.env.NEXT_PUBLIC_SITE_URL || 'https://top-sysops.ru'}/#organization`,
     name: 'TopSysOps',
     url: process.env.NEXT_PUBLIC_SITE_URL || 'https://top-sysops.ru',
     foundingDate: '2023',