v0.2.0 — wutai-clinic audit harness joins the substrate

Adds packages/clinic (runtime-verifiable paired-intervention audit harness, 441 tests) as a first-class uv workspace member; repo-wide lint gate now covers it. Known gap (tracked): the clinic verdict demo requires an evidence packet not yet published — see upcoming credential_packet_v1.

---

Update (2026-07-09): credential_packet_v1.tar.gz is now attached to this release (sha256 af6e4142…01f1) and continuously re-verified by the release-evidence CI job. The "not yet published" note above reflects the state at original publish time and is left intact for history.