Consolidate Organization schema, add ItemList/Offer markup, expand FAQ

- Merge the duplicate Organization/LocalBusiness JSON-LD blocks (home's
  LocalBusiness + o-kompanii's Organization) into one shared
  getOrganizationSchema() call rendered on every page. Deliberately NOT
  wired through the root layout: fetches there get frozen into the
  static shell at build time (backend unreachable during image build)
  and never revalidate, silently serving stale data to crawlers - each
  page calls it directly instead, where revalidation is proven to work.
- Add optional ItemList schema on /uslugi and Offer/OfferCatalog schema
  on /aktsii; entity pages (/uslugi/[slug] Service, /blog/[slug]
  Article) reference the organization via @id instead of duplicating it.
- Add 8 more real FAQ entries (pricing model, contract terms,
  onboarding time, hybrid IT staff setup, supported stacks, backups,
  152-FZ compliance, escalation) and give every FAQ its own slug and
  dedicated /faq/[slug] page with its own title/H1/FAQPage schema,
  modeled on the one-topic-per-page pattern (h/t remontka.pro).

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

public-site/app/layout.jsx

@@ -2,7 +2,6 @@ import './globals.css';
 import { ThemeProvider } from '../components/ThemeProvider.jsx';
 import SupportChat from '../components/SupportChat.jsx';
 import VisitTracker from '../components/VisitTracker.jsx';
-import { getOrganizationSchema } from '../lib/schema.js';
 
 const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL || 'https://top-sysops.ru';
 
@@ -28,14 +27,17 @@ const NO_FLASH_SCRIPT = `
 })();
 `;
 
+// Organization/LocalBusiness JSON-LD намеренно НЕ рендерится здесь: root layout
+// в этом проекте частично запекается в статическую оболочку на этапе сборки
+// (когда бэкенд ещё недоступен), и любые fetch-данные отсюда попадают в HTML
+// устаревшими навсегда, даже с revalidate. Каждая страница вызывает
+// getOrganizationSchema() сама - там это надёжно ревалидируется на каждый запрос.
 export default function RootLayout({ children }) {
   return (
     <html lang="ru">
       <head>
         {/* eslint-disable-next-line react/no-danger */}
         <script dangerouslySetInnerHTML={{ __html: NO_FLASH_SCRIPT }} />
-        {/* eslint-disable-next-line react/no-danger */}
-        <script type="application/ld+json" dangerouslySetInnerHTML={{ __html: JSON.stringify(getOrganizationSchema()) }} />
       </head>
       <body className="bg-slate-50 dark:bg-slate-950 text-slate-900 dark:text-slate-100">
         <ThemeProvider>{children}</ThemeProvider>