0.3.0 "Goshawk" — the interoperability release
First network surface: /v1 HTTP API (health, navigator bundles, qglake story, envelope audit, semantic-model registry + search) and the A2A Agent Card at /.well-known/agent-card.json. Verifies qg-python Ed25519 TypeDID envelopes cross-language (verify-envelope CLI, agent::interop). OpenLineage run ids are spec-conformant deterministic UUIDv5, validated against the official 2-0-2 schema in the equivalence suite. GitHub Actions CI.
See CHANGELOG.md for full notes.