feat(backlog): save only the changed fields

src/components/PlayingHint.test.jsx

@@ -14,7 +14,8 @@ const renderHint = (props) => render(<MemoryRouter><PlayingHint game={game} onCh
 describe('PlayingHint', () => {
     beforeEach(() => {
         localStorage.setItem('tbp_session', '1');
-        fetchRoutes({'PUT /api/library/games/220/backlog': (url, init) => json(200, JSON.parse(init.body))});
+        // Core changes only the status and answers the whole entry.
+        fetchRoutes({'PUT /api/library/games/220/status': (url, init) => json(200, {...game, ...JSON.parse(init.body)})});
     });
 
     afterEach(() => {
@@ -31,15 +32,15 @@ describe('PlayingHint', () => {
         expect(screen.queryByRole('button')).toBeNull();
     });
 
-    it('sets the game to PLAYING and keeps the other fields', async () => {
+    it('sends only the status, so Core keeps the other fields', async () => {
         const onChanged = vi.fn();
         renderHint({onChanged});
 
         fireEvent.click(screen.getByRole('button', {name: 'GAME_DETAIL.SET_PLAYING'}));
 
-        await waitFor(() => expect(onChanged).toHaveBeenCalledWith({status: 'PLAYING', rating: 3, notes: 'keep', priority: 'HIGH'}));
+        await waitFor(() => expect(onChanged).toHaveBeenCalledWith(expect.objectContaining({status: 'PLAYING'})));
         const [url, init] = fetch.mock.calls[0];
-        expect(url).toMatch(/\/api\/library\/games\/220\/backlog$/);
-        expect(JSON.parse(init.body)).toEqual({status: 'PLAYING', rating: 3, notes: 'keep', priority: 'HIGH'});
+        expect(url).toMatch(/\/api\/library\/games\/220\/status$/);
+        expect(JSON.parse(init.body)).toEqual({status: 'PLAYING'});
     });
 });