feat: add CI/CD pipeline, backup system, and deployment automation

## Summary
- Add complete CI/CD pipeline with Gitea Actions for automated testing, building, and deployment
- Implement backup and restore system with full database and file backup to ZIP
- Add deployment automation with webhook receiver and systemd service
- Enhance recipe editing UI with improved ingredient parsing and cooking mode features
- Add comprehensive documentation for CI/CD, deployment, and backup features

## CI/CD Pipeline
- New workflow in .gitea/workflows/ci-cd.yml with test, build, and deploy stages
- Automated Docker image building and pushing to registry
- Webhook-triggered deployments to production servers

## Backup & Restore
- New backup service with ZIP creation including database dump and uploads
- REST API endpoints for create, list, download, restore, and delete operations
- Configurable backup path via BACKUP_PATH environment variable

## Deployment
- Automated deployment scripts (deploy.sh, manual-deploy.sh)
- Webhook receiver with systemd service for deployment triggers
- Environment configuration template (.env.deploy.example)

## Documentation
- docs/CI-CD-SETUP.md - Complete CI/CD pipeline setup guide
- docs/DEPLOYMENT-QUICK-START.md - Quick deployment reference
- docs/BACKUP.md - Backup and restore documentation
- docs/REMOTE_DATABASE.md - Remote database configuration guide
- scripts/README.md - Deployment scripts documentation

## Web Improvements
- Enhanced ingredient parser with better unit and quantity detection
- Improved recipe editing interface with unified edit experience
- Better cooking mode functionality
- Updated dependencies in package.json

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

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

docker-compose.yml

@@ -31,12 +31,15 @@ services:
     environment:
       NODE_ENV: production
       PORT: 3001
-      DATABASE_URL: postgresql://basil:basil@postgres:5432/basil?schema=public
+      # Use DATABASE_URL from .env if set, otherwise default to local postgres
+      DATABASE_URL: ${DATABASE_URL:-postgresql://basil:basil@postgres:5432/basil?schema=public}
       STORAGE_TYPE: local
       LOCAL_STORAGE_PATH: /app/uploads
+      BACKUP_PATH: /app/backups
       CORS_ORIGIN: https://basil.pkartchner.com
     volumes:
       - uploads_data:/app/uploads
+      - backups_data:/app/backups
     networks:
       - internal
       - traefik
@@ -62,6 +65,7 @@ services:
 volumes:
   postgres_data:
   uploads_data:
+  backups_data:
 
 networks:
   traefik: