feat(ui): add people lists for game owners and community stats

src/pages/GameDetail.test.jsx

@@ -23,6 +23,7 @@ const echo = (url, init) => json(200, JSON.parse(init.body));
 // The user and the game at /library/<shown.appid>; `routes` adds or replaces answers.
 const answer = (shown, routes = {}, me = {settings: {}}) => fetchRoutes({
     'GET /api/users/me': json(200, me),
+    'GET /api/stats/owners': json(200, {listed: [], listedTotal: 0, privateCount: 0, includesYou: false, page: 0, totalPages: 1}),
     [`GET /api/library/games/${shown.appid}`]: json(200, shown),
     ...routes,
 });
@@ -38,6 +39,27 @@ afterEach(() => {
 });
 
 describe('GameDetail', () => {
+    it('showsHowManyOthersOwnTheGameAndOnlyNamesTheListedOnes', async () => {
+        answer(game, {'GET /api/stats/owners': json(200, {listed: [{displayName: 'Lobo'}], listedTotal: 1, privateCount: 1,
+            includesYou: true, page: 0, totalPages: 1})});
+        renderDetail();
+
+        expect(await screen.findByText('PEOPLE.OTHER_OWNERS:2')).toBeTruthy();
+        expect(screen.getByRole('link', {name: 'Lobo'}).getAttribute('href')).toBe('/u/Lobo');
+        expect(screen.getByText('PEOPLE.PRIVATE:1')).toBeTruthy();
+        expect(screen.queryByText('PEOPLE.YOU')).toBeNull();
+        expect(fetch.mock.calls.find(([url]) => url.includes('/api/stats/owners'))[0]).toContain('appid=220&page=0');
+    });
+
+    it('showsNoOwnersTitleWhenNobodyElseOwnsTheGame', async () => {
+        answer(game, {'GET /api/stats/owners': json(200, {listed: [], listedTotal: 0, privateCount: 0,
+            includesYou: true, page: 0, totalPages: 0})});
+        renderDetail();
+
+        expect(await screen.findByText('PEOPLE.NONE')).toBeTruthy();
+        expect(screen.queryByText(/PEOPLE.OTHER_OWNERS/)).toBeNull();
+    });
+
     it('shows the coming badge of a game that is not released yet', async () => {
         answer({...game, source: 'STEAM', coming: true, comingOn: '2026-12-04'});
         renderDetail();
@@ -447,6 +469,7 @@ describe('GameDetail session', () => {
     it('replacesTheUrlOfAMergedKeyWithTheKeptGame', async () => {
         fetchRoutes({
             'GET /api/users/me': json(200, {settings: {}}),
+            'GET /api/stats/owners': json(200, {listed: [], listedTotal: 0, privateCount: 0, includesYou: false, page: 0, totalPages: 1}),
             'GET /api/library/games/-7': json(200, {...game, appid: 220, source: 'STEAM'}),
             'GET /api/library/games/220': json(200, {...game, appid: 220, source: 'STEAM'}),
         });