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/uslugi/[slug]/page.jsx

@@ -8,6 +8,7 @@ import { ServicePriceList } from '../../../components/sections/Services.jsx';
 import { getIcon } from '../../../lib/icons.js';
 import { getServiceLandingCopy } from '../../../lib/serviceLandingCopy.js';
 import { serverApi } from '../../../lib/serverApi.js';
+import { ORGANIZATION_ID } from '../../../lib/schema.js';
 
 async function findCategory(slug) {
   const services = await serverApi.getServices();
@@ -37,7 +38,7 @@ export default async function ServiceLandingPage({ params }) {
     '@type': 'Service',
     name: copy.h1,
     description: copy.metaDescription,
-    provider: { '@id': `${process.env.NEXT_PUBLIC_SITE_URL || 'https://top-sysops.ru'}/#organization` },
+    provider: { '@id': ORGANIZATION_ID },
     areaServed: 'RU',
   };