The round summary used to disappear after a fixed 5 seconds. It is now
derived from the game state: the previous round's result is shown while
the new round is in bidding and hides once card play starts. This also
survives a page reload.
- Drop the client-side round timer from useWizard
- On narrow screens show the summary in the page flow so it does not
cover the bid buttons
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>