feat(pitch-deck): add subtitles to USP + Milestones, EUR hint, re-secure

- USP: "Compliance und Code — in einer Plattform, immer synchron"
- Milestones: "Von der Idee zur GmbH — was wir bereits erreicht haben"
- Finanzplan subtitle: "Alle Werte in EUR"
- 2. Finanzierungsrunde (optional)
- Re-secure fp-patch

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

pitch-deck/middleware.ts

@@ -6,7 +6,6 @@ const PUBLIC_PATHS = [
   '/auth',                    // investor login pages
   '/api/auth',                // investor auth API
   '/api/health',
-  '/api/admin/fp-patch',
   '/api/admin-auth',          // admin login API
   '/pitch-admin/login',       // admin login page
   '/_next',