This PR completes 2.1.176 adoption: coverage advances now that 2.1.176 is captured +
triaged (7 features). The owner floor override stays pinned at 2.1.170; `latest` is automation-owned.
2.1.177 sits ahead — the binary shipped before its changelog notes (B's NOTE surfaces it).
supported_floor = 2.1.170 — owner manual_override (expires 2026-09-07); support only newest CC. Unchanged by this PR.
latest_known = 2.1.176 — highest version ork's adoption COVERS (captured + triaged). Was 2.1.175; advanced here. Stamps LATEST_KNOWN_CC.
installed binary = 2.1.177 — published ahead of its changelog notes → unadoptable until they ship. cc-watch's new NOTE (#2444) makes this gap visible.
latest = 2.1.170 — support-window head, automation-owned (cc-support-window-bump.yml). Hand-bumps break the recovery test; left alone.