Poll effect on the Effect Clock until predicate holds, timing out to
EventualConsistencyTimeout once waitUpTo elapses. Because it uses the
Effect Clock (not Date.now/setTimeout), TestClock.adjust advances it
deterministically in tests — no real-clock burn.
Poll
effecton the EffectClockuntilpredicateholds, timing out to EventualConsistencyTimeout oncewaitUpToelapses. Because it uses the EffectClock(notDate.now/setTimeout),TestClock.adjustadvances it deterministically in tests — no real-clock burn.