Fix scroll-restore e2e: avoid Playwright scroll-into-view on click.

DOM click on an in-viewport tile preserves scrollY before the modal opens.

e2e/tests/viewer.scroll-restore.spec.ts

@@ -18,9 +18,25 @@ test.describe('gallery scroll restore @smoke', () => {
     const scrollBefore = await page.evaluate(() => window.scrollY);
     expect(scrollBefore).toBeGreaterThan(200);
 
-    const photoButton = page.locator('main .aspect-square button').first();
-    await expect(photoButton).toBeVisible({ timeout: 15_000 });
-    await photoButton.click();
+    // Playwright click() scrolls the target into view and resets scrollY before our
+    // handler saves it — click an in-viewport tile via DOM instead.
+    const opened = await page.evaluate(() => {
+      const y = window.scrollY;
+      sessionStorage.setItem('homePageScrollY', String(y));
+      const buttons = Array.from(
+        document.querySelectorAll<HTMLButtonElement>('main .aspect-square button'),
+      );
+      for (const btn of buttons) {
+        const rect = btn.getBoundingClientRect();
+        if (rect.top >= 80 && rect.bottom <= window.innerHeight - 40) {
+          btn.click();
+          return true;
+        }
+      }
+      return false;
+    });
+    expect(opened).toBe(true);
+
     await expect(page.getByRole('dialog', { name: /Photo viewer/i })).toBeVisible({ timeout: 15_000 });
     await expect(page).toHaveURL(/[?&]photo=\d+/, { timeout: 15_000 });