release: 0.5.2

release: 0.5.1

release: 0.5.0

release: 0.4.0

release: 0.3.2 ready

release: 0.3.1

feat: add production docker compose stack

Add docker-compose.yml and env.example for the production environment.
The stack runs the Go API server and Cloudflare Tunnel connector on an
isolated subnet (172.29.0.0/16) to prevent subnet collision with the
preview environment. The web frontend is deployed separately to
Cloudflare Pages.

Key configuration details:

- Server binds only to the internal compose network; cloudflared proxies
  the public api.kuku.mom hostname
- Database uses external managed Postgres with TLS required
- OAuth clients, email (SES), and Gemini API credentials are
  prod-specific
- Logging configured with size limits to prevent disk overflow
- TRUSTED_PROXIES pinned to the compose subnet and Cloudflare IP ranges

init