v0.1.0 — API Auto-Deployment

## DevOps Foundation
After iterating on the core product through December and January, we formalized our release process.
### Changes
- **Automated deployment pipeline** — Push to main triggers build + deploy
- **Docker Compose** — Containerized API, MongoDB, and Redis
- **DigitalOcean deployment** — Production environment on managed infrastructure
- **Health checks** — `/health` endpoint for monitoring
- **Version tagging** — Semantic versioning (v0.1.0 → v0.2.0 → v0.3.0 → v0.4.0)
- **API call logging** — Request/response tracking for debugging
This was the foundation that made rapid iteration possible.