v0.1.6 — reliable cleanup and current delivery checks

Improve Workspace process diagnostics and replace stale final-validation evidence requirements with current production verification.

• Preserve owned child status/output and bound cleanup, registration and deadlines.
• Handle the macOS zombie-group exit race without accepting real or unknown permission failures.
• Verify current Revision, artifact set, expected DeliveryBuildId, exact four-file media and a stable read-only snapshot.

776 repository tests, the macOS ARM64 gate and npm publication passed. A fresh official npm Workspace completed real Codex 0.153.4 and Hermes 0.21.0 videos (32.23 s and 32 s); independent checksums, codec/specification and EOF checks passed. Published package bytes remained unchanged.

A subsequent concurrent final check exposed an additional macOS edge: an unrelated process state ?E caused the strict snapshot parser to reject the target group's absence. The videos are valid, but v0.1.6 does not close this cleanup issue. v0.1.7 corrects this parser edge and is now published.