feat(pitch-deck): pivot to Maschinen- und Anlagenbau target market

Refocus entire pitch deck narrative on machine/plant manufacturers with
in-house embedded software development. Key changes:

- i18n: All DE/EN texts updated (cover, problem, solution, market, etc.)
- MarketSlide: Dynamic unit formatting (Mrd/Mio/k) for SOM in millions
- SolutionSlide: Code-Security pillar with ScanLine icon
- HowItWorksSlide: GitBranch icon for code repo connection step
- CompetitionSlide: Security features reframed for firmware/embedded
- RegulatorySlide: Added CRA (Cyber Resilience Act) as 4th tab
- AI chat prompt: Updated Kernbotschaften for Maschinenbau USP
- DB migration: TAM 8.7B, SAM 850M, SOM 7.2M, customers 5-380 (2026-2030),
  4 new differentiator features, product capabilities for code-security

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pitch-deck/components/slides/HowItWorksSlide.tsx

@@ -3,7 +3,7 @@
 import { motion } from 'framer-motion'
 import { Language } from '@/lib/types'
 import { t } from '@/lib/i18n'
-import { Plug, Settings, RefreshCw, CheckCircle2 } from 'lucide-react'
+import { Plug, GitBranch, RefreshCw, CheckCircle2 } from 'lucide-react'
 import GradientText from '../ui/GradientText'
 import FadeInView from '../ui/FadeInView'
 
@@ -11,7 +11,7 @@ interface HowItWorksSlideProps {
   lang: Language
 }
 
-const stepIcons = [Plug, Settings, RefreshCw, CheckCircle2]
+const stepIcons = [Plug, GitBranch, RefreshCw, CheckCircle2]
 const stepColors = ['text-blue-400', 'text-indigo-400', 'text-purple-400', 'text-green-400']
 
 export default function HowItWorksSlide({ lang }: HowItWorksSlideProps) {