test(web): ignore scroll-driven animations when waiting for settled layout

The model selector's clipped-text fade runs on a scroll timeline, which
never finishes, so document-wide waits never settled.

apps/web/tests/context-meter.e2e.ts

@@ -57,7 +57,8 @@ describe.skipIf(webSnapshotMode() === 'record')('web e2e: context details placem
           })
           await page.evaluate(async () => {
             await Promise.all(document.getAnimations()
-              .filter(animation => animation.effect?.getComputedTiming().iterations !== Infinity)
+              .filter(animation => animation.timeline === document.timeline
+                && animation.effect?.getComputedTiming().iterations !== Infinity)
               .map(animation => animation.finished.catch(() => undefined)))
           })
           await expect.poll(async () => {

apps/web/tests/window-drag-coverage.e2e.ts

@@ -169,13 +169,15 @@ function firstRecallPulse(page: Page): Promise<boolean> {
 }
 
 /**
- * Wait until nothing under the page is animating, so a probe measures the settled
- * layout instead of a frame of a column slide.
+ * Wait until no time-based animation under the page is running, so a probe measures
+ * the settled layout instead of a frame of a column slide. Scroll-driven animations
+ * never finish and are ignored.
  * @param page - the page under test.
  */
 async function settled(page: Page): Promise<void> {
   await expect.poll(() => page.evaluate(() => document.getAnimations()
-    .every(animation => animation.playState === 'finished' || animation.playState === 'idle')),
+    .every(animation => animation.timeline !== document.timeline
+      || animation.playState === 'finished' || animation.playState === 'idle')),
   { timeout: 20_000 }).toBe(true)
 }