Docs: Update benchmark results

tests/9_stream_visualizer/outputs/openai_gpt-5.1-codex.js

@@ -0,0 +1,23 @@
+async function createStreamVisualizer(iterable, {
+  maxPoints = 100,
+  alpha = .5,
+  width = 300,
+  height = 150,
+  yDomain = [0, 1]
+} = {}) {
+  const { scaleLinear, line } = await import('https://cdn.jsdelivr.net/npm/d3@7/+esm')
+  const data = []
+  let ema
+  for await (const point of iterable) {
+    const { timestamp, value } = point
+    ema = ema == null ? value : alpha * value + (1 - alpha) * ema
+    data.push({ timestamp, value, ema })
+    data.length > maxPoints && data.shift()
+  }
+  if (!data.length) return { data, path: '' }
+  const x = scaleLinear().domain([data[0].timestamp, data.at(-1).timestamp]).range([0, width])
+  const y = scaleLinear().domain(yDomain).range([height, 0])
+  const path = line().x(d => x(d.timestamp)).y(d => y(d.ema))(data) || ''
+  return { data, path }
+}
+export default createStreamVisualizer;