CRITICAL: This fixes the deployment issue where changes weren't appearing on production
Changes:
- Update docker-compose.prod.yml to use ghcr.io pre-built images instead of local builds
- Fix deployment script to pull latest images rather than building locally
- Add proper GitHub Container Registry authentication
- Remove --build flag that was causing deployment to use stale local code
This should resolve the issue where www.vhtv-stiftung.de wasn't showing the new Verpachtung features.
- Add Paperless-ngx service to Docker Compose configuration
- Configure nginx routing for /paperless/ path with large file support
- Add production environment variables for Paperless
- Create automated setup script for initial Paperless configuration
- Add comprehensive production setup documentation
- Configure Paperless with HTTPS and proper database setup
- Update Django app to use production Paperless instance
