Docs: Update benchmark results

tests/9_stream_visualizer/outputs/x-ai_grok-4.js

@@ -0,0 +1,35 @@
+async function createStreamVisualizer(asyncIterable, options) {
+  const { maxPoints, alpha, width, height, yDomain } = options;
+  const d3 = await import('d3');
+  const data = [];
+  let prevEma = null;
+  let first = true;
+  for await (const { timestamp, value } of asyncIterable) {
+    let ema;
+    if (first) {
+      ema = value;
+      prevEma = value;
+      first = false;
+    } else {
+      ema = alpha * value + (1 - alpha) * prevEma;
+      prevEma = ema;
+    }
+    data.push({ timestamp, value, ema });
+    if (data.length > maxPoints) data.shift();
+  }
+  if (data.length === 0) return { data, path: '' };
+  const x = d3.scaleLinear()
+    .domain([data[0].timestamp, data[data.length - 1].timestamp])
+    .range([0, width]);
+  const y = d3.scaleLinear()
+    .domain(yDomain)
+    .range([height, 0]);
+  const line = d3.line()
+    .x(d => x(d.timestamp))
+    .y(d => y(d.ema));
+  const path = line(data);
+  return { data, path };
+}
+export default createStreamVisualizer;
+// Generation time: 34.223s
+// Result: FAIL