fix(pitch-deck): increase font sizes on slides 8, 11, 18, 25, 27

- All text-[10px] → text-xs (12px)
- All text-[9px] → text-[11px]
- All text-[8px] → text-[10px]
- Affected: BusinessModel, Product, Savings, Strategy slides
- Engineering: revert LoC to 481K (compliance SDK only, not all repos)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

pitch-deck/components/slides/EngineeringSlide.tsx

@@ -30,7 +30,7 @@ export default function EngineeringSlide({ lang }: EngineeringSlideProps) {
 
   const heroStats = [
     {
-      value: '960K+',
+      value: '481K',
       label: de ? 'Zeilen Code' : 'Lines of Code',
       sub: 'Go · Python · TypeScript',
       color: 'text-indigo-400',