fix(web): wait for chart render in supported-link e2e

ChartCanvas lazy-loads Plot after navigation. The supported-URL
spec asserted on svg anchors immediately, so a slow CI runner could
time out before marks appeared even though link handling was correct.

Co-authored-by: cynarAI <cynarAI@users.noreply.github.com>

apps/web/e2e/chart-links.spec.ts

@@ -63,8 +63,10 @@ test("chart links retain supported URLs and browser encoding semantics", async (
     "java%73cript:void(0)",
   ]) {
     await page.goto(`${fixture}?${new URLSearchParams({ href })}`);
+    // ChartCanvas lazy-loads Plot; mirror the inert-link test and wait for marks first.
+    await expect(page.locator("svg circle").first()).toBeVisible();
     const link = page.locator("svg a").first();
-    await expect(link).toBeVisible();
+    await expect(link).toBeAttached();
     expect(
       await link.evaluate((anchor) =>
         anchor.getAttributeNS("http://www.w3.org/1999/xlink", "href"),