To be completed after reading human-owned input and the ticket preprompt.
Drafted all three gate configs on branch ticket/095-on-change-gates
(commits 5dd14f8..). governance-check fails GOV-WORKSTREAM-001/003:
workstream quality undeclared; root gate configs owned by no workstream.
koru-scan requires root markers, so infra/ placement cannot satisfy
STARTER-022/023/024. Manifest fix needs governance workstream, reserved by
in-flight ticket-094 (allocator refused). Ticket set to BLOCKED pending
ticket-094 merge + a governance ticket adding regix.yaml, wup.yaml,
testql-scenarios/** to infrastructure.ownedPaths.