fix(pitch-deck): replace all hardcoded financial numbers with computed values

All financial data now flows from the same compute engine (useFinancialModel).
No more hardcoded numbers in any slide — all values are derived from the
finanzplan database, ensuring consistency across all pitch deck versions.

- FinanzplanSlide: KPI table + charts now use computeAnnualKPIs() from FMResult[]
- BusinessModelSlide: bottom-up calc (customers × ACV = ARR) from compute engine
- AssumptionsSlide: Base case from compute, Bear/Bull scaled from Base
- New helper: lib/finanzplan/annual-kpis.ts for 60-month → 5-year aggregation
- PitchDeck: passes investorId to all financial slides for version-aware data

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

pitch-deck/components/slides/BusinessModelSlide.tsx

@@ -2,6 +2,7 @@
 
 import { Language } from '@/lib/types'
 import { t } from '@/lib/i18n'
+import { useFinancialModel } from '@/lib/hooks/useFinancialModel'
 import GradientText from '../ui/GradientText'
 import FadeInView from '../ui/FadeInView'
 import GlassCard from '../ui/GlassCard'
@@ -10,11 +11,19 @@ import { ArrowRight, TrendingUp, Target, Repeat, DollarSign, Users, BarChart3 }
 interface BusinessModelSlideProps {
   lang: Language
   products?: unknown[]
+  investorId?: string | null
 }
 
-export default function BusinessModelSlide({ lang }: BusinessModelSlideProps) {
+export default function BusinessModelSlide({ lang, investorId }: BusinessModelSlideProps) {
   const i = t(lang)
   const de = lang === 'de'
+  const fm = useFinancialModel(investorId || null)
+  const summary = fm.activeResults?.summary
+  const results = fm.activeResults?.results || []
+  const lastResult = results[results.length - 1]
+  const finalCustomers = summary?.final_customers || 0
+  const finalArr = summary?.final_arr || 0
+  const acv = finalCustomers > 0 ? Math.round(finalArr / finalCustomers) : 0
 
   const tiers = [
     {
@@ -145,8 +154,8 @@ export default function BusinessModelSlide({ lang }: BusinessModelSlideProps) {
                 </div>
                 <p className="text-xs text-white/50">
                   {de
-                    ? '1.200 Kunden × 8.400 EUR ACV = ~10 Mio. EUR ARR (2030)'
-                    : '1,200 customers × EUR 8,400 ACV = ~EUR 10M ARR (2030)'}
+                    ? `${finalCustomers.toLocaleString('de-DE')} Kunden × ${acv.toLocaleString('de-DE')} EUR ACV = ~${(finalArr / 1_000_000).toFixed(1).replace('.', ',')} Mio. EUR ARR (2030)`
+                    : `${finalCustomers.toLocaleString('en-US')} customers × EUR ${acv.toLocaleString('en-US')} ACV = ~EUR ${(finalArr / 1_000_000).toFixed(1)}M ARR (2030)`}
                 </p>
               </div>
             </GlassCard>