Docs: Update benchmark results

tests/9_stream_visualizer/outputs/google_gemini-3-pro-preview.js

@@ -0,0 +1,32 @@
+export const createStreamVisualizer = async (
+  stream,
+  { maxPoints, alpha, width, height, yDomain }
+) => {
+  const { scaleLinear, line } = await import('https://cdn.jsdelivr.net/npm/d3@7/+esm');
+  const data = [];
+  let prev = null;
+
+  for await (const { timestamp, value } of stream) {
+    const ema = prev == null ? value : alpha * value + (1 - alpha) * prev;
+    prev = ema;
+    data.push({ timestamp, value, ema });
+    if (data.length > maxPoints) data.shift();
+  }
+
+  if (!data.length) return { data, path: '' };
+
+  const x = scaleLinear()
+    .domain([data[0].timestamp, data[data.length - 1].timestamp])
+    .range([0, width]);
+
+  const y = scaleLinear()
+    .domain(yDomain)
+    .range([height, 0]);
+
+  const curve = line()
+    .x(d => x(d.timestamp))
+    .y(d => y(d.ema));
+
+  return { data, path: curve(data) };
+};
+export default createStreamVisualizer;