Remove the refresh icon button from the session list toolbar and make
the list itself the refresh affordance via a touch pull gesture.
Gesture (SessionList):
- Touch listeners on the scrollable list container; pull engages only
at scrollTop 0, with 16px feedback / 64px trigger thresholds, and
fires on release past the trigger. Mirrors the established
pull-to-load-older pattern in HappyThread.
- Touch-only by design: desktop has no overscroll bounce, so a wheel
pull feels broken; desktop keeps relying on SSE live updates and
query focus refetch.
- onRefresh widened to () => Promise<unknown> | void so the indicator
tracks the in-flight refetch and ignores re-entrant pulls.
Feedback:
- Status pill over the list (role=status, aria-live) shows
pull/release/refreshing states with a spinner while refreshing; it
also covers the initial useSessions load (isLoading), which lost its
only busy indication when the toolbar button was removed.
- The success toast is dropped (the pill is the feedback); the failure
toast is kept. handleRefresh now returns its promise.
Empty states (review P2s):
- SessionsEmptyState and the no-results message move from the shrink-0
header container into the scroll container, so the gesture works on
the visible empty state (retry path after a failed initial fetch)
and short viewports scroll instead of crushing the gesture area.
- SessionsEmptyState is gated on !isLoading so a slow initial request
no longer flashes the final empty state with active actions.
i18n: add sessions.refresh.pull/release/refreshing (en + zh-CN),
remove now-unused button.refresh and sessions.refresh.success.*.
Desktop wheel pull was implemented and then reverted after review.
weishu
b6897ee736