feat: Executive Summary Onepager-Slide mit PDF-Download

Neue Folie als erste Content-Slide (nach Intro) mit kompakter
Investor-Uebersicht: Problem/Loesung, KPIs, Markt, Team, Funding.
PDF-Download via window.print() ohne zusaetzliche Dependencies.

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

pitch-deck/components/PitchDeck.tsx

@@ -19,6 +19,7 @@ import PresenterOverlay from './presenter/PresenterOverlay'
 import AvatarPlaceholder from './presenter/AvatarPlaceholder'
 
 import IntroPresenterSlide from './slides/IntroPresenterSlide'
+import ExecutiveSummarySlide from './slides/ExecutiveSummarySlide'
 import CoverSlide from './slides/CoverSlide'
 import ProblemSlide from './slides/ProblemSlide'
 import SolutionSlide from './slides/SolutionSlide'
@@ -117,6 +118,8 @@ export default function PitchDeck({ lang, onToggleLanguage }: PitchDeckProps) {
             isPresenting={presenter.state !== 'idle'}
           />
         )
+      case 'executive-summary':
+        return <ExecutiveSummarySlide lang={lang} data={data} />
       case 'cover':
         return <CoverSlide lang={lang} onNext={nav.nextSlide} funding={data.funding} />
       case 'problem':