CI caught two lint issues in the tile-reconcile path:
- no-restricted-syntax: don't mirror the $busy atom into a ref via
useEffect (stale-read hazard); reconcileTileTranscripts now receives a
live getter view so the loop reads the current value at tick time.
- react-hooks/exhaustive-deps: add updateSessionState to the
sessions.changed effect deps (stable useCallback from
useSessionStateCache, so no extra re-subscription).
No behavioral change: regression tests 2/2, adjacent hook suite 58/58,
typecheck clean.
beplee
3669fa3095