Add main menu, 3v3 with goalies, and dead-puck faceoffs.

Players pick 1-on-1 shootout or 3-on-3 scrimmage; 3v3 gets nets,
goalies, scoring, OOB whistles to the nearest faceoff circle, and
one-way board re-entry for skaters who leave the ice.

tools/capture.mjs

@@ -83,10 +83,15 @@ try {
   });
   page.on('pageerror', (err) => errors.push(String(err?.stack ?? err)));
 
-  await page.goto(URL, { waitUntil: 'domcontentloaded' });
+  // 3v3 scrimmage is what the lineup / skating shots need; skip the menu.
+  const captureUrl = new URL(URL);
+  if (!captureUrl.searchParams.has('mode')) captureUrl.searchParams.set('mode', '3v3');
+  await page.goto(captureUrl.href, { waitUntil: 'domcontentloaded' });
 
   // The boot overlay is removed once physics is up and the first frame ran.
   await page.waitForFunction(() => !document.getElementById('boot'), { timeout: 45000 });
+  // Mode auto-starts from ?mode=; wait until the match handle is live.
+  await page.waitForFunction(() => window.tilt?.match, { timeout: 15000 });
 
   // The canvas must fill the window exactly, at whatever pixel ratio. Checked
   // at two window sizes so a resize path that only works on first load fails