The chat screen asked the claw for everything the cache did not hold by
counting events, and a session that ran for weeks cost the whole record
the first time it opened here. The stream now names each frame's seq and
the cache stores it, so a reopening screen sends since=<seq> and receives
only the gap. The cache migrates in place: the old count of events is
exactly the last seq plus one, because the record numbers densely.
A screen with no cache opens on the newest turn and walks back through
the new history route when the reader reaches the top, one whole turn
per page, so the phone does not hold a weeks-long transcript to show the
last few messages. Pages are folded through the same reducer the stream
uses and prepended, since the list runs oldest first: appended, they
would land at the newest end. A reset comment (the record no longer
holds the cursor) drops the mirror, and the tail that follows rebuilds
it. The outcome tag colours a steered turn as an accent rather than a
failure, matching the web UI.
vhaudiquet
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