privateworld failed in CI on "carol replays the world from its start". A
member's carry for an epoch is published once, when it applies the commit;
the commit that adds a page follows its join, and the clock records the join
when the page's world track appears. The page published first and followed
the clock and the actors' tracks after, so on a loaded host the carries
could go out before its subscriptions, and no wait would bring them.
A publishing page in a private world now reads the room's log to its present
end, follows every actor it records and waits for each subscription's answer,
and publishes after (E2ee.readToEnd, WorldClient.followActors). live-worlds
8.2 says a member that enters SHOULD; the e2e checks that carol followed both
members before she published.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
8ab46dfb02