E6:S06:T60 → migrated to E2:S01:T09

BR-060 implementing work now lives under Epic 2 / Story 001 (RW agent execution & validators).

Canonical task doc: E2:S01:T09 — RW allow IN PROGRESS task releases (BR-060) — E4:S19:T01 stub (superseded)

Historical attribution: Releases through v0.6.6.60+1 used task id E6:S06:T60; changelogs and validators may still reference that id for those builds.

BR: BR-060