CI sibling-test blast radius from the cluster branch:
- singleFlightSessionResume crashed on run() doubles that return
non-promises (Cannot read 'finally'); wrap via Promise.resolve().then(run).
- Three use-session-tile-delegate tests pinned the pre-#92961 ambient
dispatch for default-profile sessions; the routing-authority change
intentionally routes every known owner through the profile router, so
the tests now assert requestGatewayForProfile('default', ...) instead.
Teknium
36bbb41d6c