Docs: Update benchmark for x-ai/grok-4.1-fast

tests/2_convex_hull/outputs/x-ai_grok-4.1-fast.js

@@ -0,0 +1,19 @@
+async function findConvexHull(pts) {
+  const { sortBy, uniqBy } = await import('https://cdn.skypack.dev/lodash-es');
+  const ps = uniqBy(pts, p => `${p.x},${p.y}`);
+  if (ps.length < 2) return ps;
+  const sorted = sortBy(ps, ['x', 'y']);
+  const cross = (o, a, b) => (a.x - o.x) * (b.y - o.y) - (a.y - o.y) * (b.x - o.x);
+  const build = (pnts) => {
+    const h = [];
+    for (let p of pnts) {
+      while (h.length > 1 && cross(h[h.length - 2], h.at(-1), p) <= 0) h.pop();
+      h.push(p);
+    }
+    return h;
+  };
+  const lower = build(sorted);
+  const upper = build([...sorted].reverse());
+  return [...lower.slice(0, -1), ...upper.slice(0, -1)];
+}
+export default findConvexHull;