fix(pitch-deck): all financial slides now read from fp_* tables via useFpKPIs

New shared hook: useFpKPIs — loads annual KPIs from fp_guv/liquiditaet/personal/kunden.
Replaces useFinancialModel (simplified model) for KPI display on all slides.

Slides updated:
- CompetitionSlide: "110 Gesetze" → "380+ Regularien & Normen"
- BusinessModelSlide: ACV + Gross Margin from fp_* (was useFinancialModel)
- ExecutiveSummarySlide: Unternehmensentwicklung from fp_* (was useFinancialModel)
- FinancialsSlide: KPI cards from fp_* (ARR, Customers, Break-Even, EBIT 2030)

All slides now show consistent numbers from the same source of truth (fp_* tables).

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

pitch-deck/components/slides/BusinessModelSlide.tsx

@@ -2,7 +2,7 @@
 
 import { Language } from '@/lib/types'
 import { t } from '@/lib/i18n'
-import { useFinancialModel } from '@/lib/hooks/useFinancialModel'
+import { useFpKPIs } from '@/lib/hooks/useFpKPIs'
 import GradientText from '../ui/GradientText'
 import FadeInView from '../ui/FadeInView'
 import GlassCard from '../ui/GlassCard'
@@ -13,18 +13,17 @@ interface BusinessModelSlideProps {
   products?: unknown[]
   investorId?: string | null
   preferredScenarioId?: string | null
+  isWandeldarlehen?: boolean
 }
 
-export default function BusinessModelSlide({ lang, investorId, preferredScenarioId }: BusinessModelSlideProps) {
+export default function BusinessModelSlide({ lang, isWandeldarlehen }: BusinessModelSlideProps) {
   const i = t(lang)
   const de = lang === 'de'
-  const fm = useFinancialModel(investorId || null, preferredScenarioId)
-  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 { last } = useFpKPIs(isWandeldarlehen)
+  const finalCustomers = last?.customers || 0
+  const finalArr = last?.arr || 0
   const acv = finalCustomers > 0 ? Math.round(finalArr / finalCustomers) : 0
+  const grossMargin = last?.grossMargin ?? 0
 
   const tiers = [
     {
@@ -62,7 +61,7 @@ export default function BusinessModelSlide({ lang, investorId, preferredScenario
     },
   ]
 
-  const grossMargin = lastResult?.gross_margin_pct ?? 0
+  // grossMargin already defined above from useFpKPIs
   const acvLabel = acv > 0
     ? (de ? `${(acv / 1000).toFixed(1).replace('.', ',')}k EUR` : `EUR ${(acv / 1000).toFixed(1)}k`)
     : '—'