feedback7 R22-E2EFIX: loadout e2e's pickChess waits for the detail to show the picked chess at the top before clicking in it; golden: unchanged

loadout.e2e 「局内数值 (desktop)…」 failed with 'Node is either not clickable or not an Element' on the 局内数值 精锐 tab
right after picking 信仰搅拌机. pickChess returned as soon as a stats cell was visible — the previous chess's — and the
detail resets its scroll for a new chess after paint (screens/loadout.js), so puppeteer scrolled the tab into view and
the reset then moved it below the viewport before the click (measured: scrollTop 366 → 0, the tab at y 1201 of 1080).
The 0.2.2 detail opens with 潜能与练度 and 特质, so 局内数值 / 模组 sit below the fold and need that scroll. pickChess now
waits for the detail's name and its body back at scrollTop 0. A player is not affected (the reset is the intended
behaviour); the assertions are unchanged.

- Tests (SP_E2E=1): loadout.e2e 11/11.

test/ui/loadout.e2e.test.js

@@ -455,6 +455,10 @@ describe('干员调配 overlay (real server, headless Chrome)', { skip: !ENABLED
     await page.type('.lo-search input', name);
     await page.waitForFunction((n) => document.querySelectorAll('.lo-card').length === 1 && document.querySelector('.lo-card .lo-card__name')?.textContent === n, { timeout: 5000 }, name);
     await page.click('.lo-card__pick');
+    // the detail shows the picked chess and its body is back at the top: screens/loadout.js resets the scroll for a new
+    // chess after paint, and a click that puppeteer scrolled into view before that reset lands outside the viewport (the
+    // 0.2.2 detail opens with 潜能与练度 and 特质, so 局内数值 / 模组 sit below the fold at 1920 × 1080)
+    await page.waitForFunction((n) => document.querySelector('.lo-dhead__name')?.textContent === n && document.querySelector('.lo-detail__body')?.scrollTop === 0, { timeout: 5000 }, name);
     await page.waitForSelector('.lo-sec--stats .dstat', { visible: true });
   }