feat(seo): implement AI SEO and structured data schema

- Add robust JSON-LD schema generators (LocalBusiness, FAQ, Service, Event)
- Refactor JsonLd component to use @graph pattern for merging global/local schemas
- Create FaqBlock component with automatic FAQPage schema injection
- Inject specific JSON-LD schemas into mdx pages (home, kompetenzen, messen)
- Add structured AI SEO content (hard facts, stats, clear definitions)

app/[locale]/[slug]/page.tsx

@@ -20,6 +20,8 @@ import { CallToAction } from '@/components/blocks/CallToAction';
 import { ServiceDetailGrid } from '@/components/blocks/ServiceDetailGrid';
 import { BenefitGrid } from '@/components/blocks/BenefitGrid';
 import { InteractiveGermanyMap } from '@/components/blocks/InteractiveGermanyMap';
+import { FaqBlock } from '@/components/blocks/FaqBlock';
+import JsonLd from '@/components/JsonLd';
 import { Button } from '@/components/ui/Button';
 
 
@@ -34,6 +36,8 @@ const mdxComponents = {
   ServiceDetailGrid,
   BenefitGrid,
   InteractiveGermanyMap,
+  FaqBlock,
+  JsonLd,
   Button,
   Heading,
 };

app/[locale]/page.tsx

@@ -11,6 +11,8 @@ import { HeroVideo as HomeHero } from '@/components/blocks/HeroVideo';
 import { SubCompanyTiles as HomeSubCompanyTiles } from '@/components/blocks/SubCompanyTiles';
 import { CompetenceBentoGrid as HomeCompetenceBentoGrid } from '@/components/blocks/CompetenceBentoGrid';
 import { ReferencesSlider as HomeReferencesSlider } from '@/components/blocks/ReferencesSlider';
+import { FaqBlock } from '@/components/blocks/FaqBlock';
+import JsonLd from '@/components/JsonLd';
 
 import { Button } from '@/components/ui/Button';
 import { Heading } from '@/components/ui/Heading';
@@ -20,6 +22,8 @@ const mdxComponents = {
   HomeSubCompanyTiles,
   HomeCompetenceBentoGrid,
   HomeReferencesSlider,
+  FaqBlock,
+  JsonLd,
   Button,
   Heading,
 };