InteractiveMode.renderWidgets() called Container.clear() on the
widgetContainerAbove/Below render mounts, which disposed every mounted
extension widget and then re-added the now-dead components. In AUTO mode
updateProgressWidget re-registers gsd-progress on every unit dispatch,
so gsd-notifications and gsd-health had their refresh timers and store
subscriptions killed after the first dispatch. Renders kept returning
the widgets' frozen cachedLines, making them look alive but never update
(/gsd notifications clear appeared to do nothing, belowEditor last-commit
went stale while the top-of-screen dashboard stayed correct).
Split detach from dispose: add Container.detachChildren() and use it from
the two widget-mount call sites. clear() still disposes for every other
caller (chat, editor, status, pinned-message containers). The
extensionWidgets* maps remain the single owner of widget disposal via
removeExisting() and clearExtensionWidgets().
While in AUTO, gsd-progress duplicates gsd-health on last commit, cost/
budget, and the health signal. Make gsd-progress the single source of
truth: hide gsd-health from auto-start and re-register it from every
exit point in auto.ts (lock-lost stop, cleanupAfterLoopExit !paused
guard, stopAuto, pauseAuto). gsd-notifications stays visible — it is
independent state and, with the detach fix, its subscription + 5s
refresh actually work again.
Tests: Container.detachChildren()/clear() contract guards added to
packages/pi-tui/src/__tests__/tui.test.ts. health-widget,
notification-{store,widget,overlay}, notifications-handler, notifications,
and auto-paused-ui-cleanup suites all pass.