feat(pitch-deck): legal disclaimer slide + projection footer on financial slides

New DisclaimerSlide (last slide):
- Full liability disclaimer (German/English)
- Confidentiality clause (purpose limitation, 3yr duration, Konstanz jurisdiction)
- Status as private individual in founding preparation

ProjectionFooter component on 4 financial slides:
- FinancialsSlide, TheAskSlide, FinanzplanSlide, CapTableSlide
- "Alle Finanzdaten sind Planzahlen" disclaimer

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

pitch-deck/components/slides/FinanzplanSlide.tsx

@@ -3,6 +3,7 @@
 import { useCallback, useEffect, useState } from 'react'
 import { Language } from '@/lib/types'
 import { t } from '@/lib/i18n'
+import ProjectionFooter from '../ui/ProjectionFooter'
 import GradientText from '../ui/GradientText'
 import FadeInView from '../ui/FadeInView'
 import GlassCard from '../ui/GlassCard'
@@ -513,11 +514,7 @@ export default function FinanzplanSlide({ lang }: FinanzplanSlideProps) {
       </GlassCard>
       )}
 
-      <p className="text-center text-[9px] text-white/40 mt-2">
-        {de
-          ? 'Doppelklick auf blaue Zellen zum Bearbeiten · Gründung: 01.08.2026'
-          : 'Double-click blue cells to edit · Founding: 01.08.2026'}
-      </p>
+      <ProjectionFooter lang={lang} />
     </div>
   )
 }