- Replace all Presenton branding with Oliver DeckForge (metadata, headers, titles, logos)
- Pass CAN_CHANGE_KEYS=false to web container so setup page redirects to /upload
- Switch image provider from gemini_flash to nanobanana_pro
- Update default fallback paths from /tmp/presenton to /tmp/deckforge
- Rename packages: presenton → oliver-deckforge, presenton-backend → oliver-deckforge-backend
- Remove external presenton.ai URLs from metadata (canonical, OG, Twitter)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>