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/sitemap.js

@@ -3,7 +3,11 @@ import { serverApi } from '../lib/serverApi.js';
 const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL || 'https://top-sysops.ru';
 
 export default async function sitemap() {
-  const [posts, services] = await Promise.all([serverApi.getBlogPosts(), serverApi.getServices()]);
+  const [posts, services, faqs] = await Promise.all([
+    serverApi.getBlogPosts(),
+    serverApi.getServices(),
+    serverApi.getFaqs(),
+  ]);
 
   return [
     { url: `${SITE_URL}/`, changeFrequency: 'weekly', priority: 1.0 },
@@ -18,6 +22,11 @@ export default async function sitemap() {
     { url: `${SITE_URL}/o-kompanii`, changeFrequency: 'monthly', priority: 0.6 },
     { url: `${SITE_URL}/otzyvy`, changeFrequency: 'weekly', priority: 0.5 },
     { url: `${SITE_URL}/faq`, changeFrequency: 'monthly', priority: 0.5 },
+    ...faqs.filter((f) => f.slug).map((f) => ({
+      url: `${SITE_URL}/faq/${f.slug}`,
+      changeFrequency: 'monthly',
+      priority: 0.4,
+    })),
     { url: `${SITE_URL}/kontakty`, changeFrequency: 'monthly', priority: 0.6 },
     { url: `${SITE_URL}/blog`, changeFrequency: 'weekly', priority: 0.7 },
     ...posts.map((p) => ({