The onKeyDown stop/switch paths only cleared memRunningActionId/EntryId
after a successful stopTimer call. If the tracked Notion entry was
already gone (archived/deleted/edited outside the plugin), stopTimer
threw and the stale ID was never cleared -- every subsequent keypress
retried the same doomed stop call, showed a warning triangle, and the
deck got permanently stuck (unable to unselect the stuck button or
start any new timer). checkElapsed already handled this correctly by
clearing state unconditionally; onKeyDown now does the same: stopTimer
failures are logged but non-fatal, and local state clears regardless.