- Add contributor manifest, recognition page, API endpoint, labels, and mentorship issue briefs
- Add production Dockerfile, Compose deployment, environment reference, and deployment documentation
- Add versioned submit endpoint and readiness health check
- Add database migration and authentication integration notes
- Harden Docker sandbox runtime selection and submitted file validation
- Add sandbox timeout handling and privacy-conscious JSONL audit logging
- Document Firecracker architecture, rollout criteria, and estimated effort
- Expand API, sandbox, and contributor test coverage