A brand-new session's first turn persists to the SessionDB a beat after
the gateway emits message.complete, so a refresh fired in that window gets
a listSessions(min_messages=1) page that omits the new row. sessionsToKeep()
already shields the *active* chat from this race, but a session you started
and then navigated away from is — at the next refresh — neither working,
pinned, nor active, so mergeSessionPage() evicts it. Nothing re-fetches
afterward, so it stays gone until the app restarts.
Track sessions whose turn just settled (a real working->idle transition) in
a short, auto-expiring grace window and add them to the merge keep-set. This
bridges the persist race for non-active chats without resurrecting deleted
rows (mergeSessionPage only revives rows still in the in-memory list, which
optimistic delete/archive already drop).
Repro: start a new chat, send a message, then click another session before
the reply lands — the new session vanishes from the sidebar.
brooklyn!
395ed91891