feat(points): show points result on every status save

Core now settles on GET /api/rewards/games/{appid}. The Frontend
shows a toast, refreshes the header balance, and lists the paid
rows and reasons on the game page. Deploy Core first.

src/pages/GameDetail.reload.test.jsx

@@ -6,6 +6,7 @@ import {fetchRoutes, json} from '../test/fetchRoutes.js';
 import {renderWithProviders} from '../test/renderWithProviders.jsx';
 
 vi.mock('react-i18next', () => import('../test/i18n-mock.js'));
+vi.mock('../components/GamePointsLine.jsx', () => ({default: () => null}));
 // Stands in for a saved correction, which loads the game again.
 vi.mock('../components/GameCorrectionDialog.jsx', () => ({
     default: ({onChanged}) => <button type="button" onClick={onChanged}>correction saved</button>,