Add Coolify self-hosted deployment platform with:
- Coolify main service at coolify.dev.pivoine.art
- Dedicated PostgreSQL database (uses shared core instance)
- Soketi WebSocket server for real-time features
- Traefik routing with HTTPS and compression
- Environment variables in arty.yml (secrets in .env)
- Database creation in PostgreSQL init script
Coolify enables deploying applications from Git repositories,
including the pivoine.art Jekyll site from Gitea.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Sebastian Krüger
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