test: approve automated portfolio visual quality

tests/browser/navigation.spec.ts

@@ -63,7 +63,11 @@ test("passive scrolling replaces a stable fragment without stealing focus", asyn
     window.dispatchEvent(new WheelEvent("wheel", { deltaY: 20 }));
     const heading = document.querySelector<HTMLElement>("#experience-heading");
     if (heading === null) throw new Error("Missing experience heading");
-    window.scrollTo(0, heading.offsetTop - window.innerHeight * 0.35);
+    const headingDocumentTop =
+      heading.getBoundingClientRect().top + window.scrollY;
+    // Place the heading just beyond the 35% activation line. Scroll offsets
+    // are integer-rounded in Chromium, so exact boundary equality is brittle.
+    window.scrollTo(0, headingDocumentTop - window.innerHeight * 0.34);
   });
 
   await expect(page).toHaveURL(`${distUrl}/#experience`, { timeout: 2000 });