Add complete frontend implementation and Docker deployment setup

- Implement React frontend with TypeScript and Tailwind CSS
- Add scrappbook.de-inspired UI design with photo galleries
- Implement authentication, photo viewing, and download features
- Add Docker Swarm configuration with Traefik reverse proxy
- Set up Drone CI/CD pipeline for automated deployments
- Add monitoring stack with Prometheus and Grafana
- Create comprehensive deployment documentation
- Add simple local development setup with docker-compose.local.yml

Features:
- Password-protected galleries with expiration warnings
- Responsive photo grid with lightbox viewer
- Bulk download functionality
- Hot reload development environment
- Email testing with Mailhog
- Production-ready deployment scripts

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/.dockerignore

@@ -0,0 +1,18 @@
+node_modules
+dist
+.git
+.gitignore
+.env*
+.DS_Store
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.vscode
+.idea
+*.swp
+*.swo
+README.md
+.eslintcache
+coverage
+.nyc_output