Docs: Update benchmark for openrouter/sherlock-dash-alpha

tests/9_stream_visualizer/outputs/openrouter_sherlock-dash-alpha.js

@@ -0,0 +1,26 @@
+async function createStreamVisualizer(asyncIterable, { maxPoints = 100, alpha = 0.3, width = 800, height = 400, yDomain = [-1, 1] } = {}) {
+  const { select, scaleLinear, scaleTime, line } = await import('https://cdn.skypack.dev/d3@7');
+  
+  let data = [], prevEma;
+  
+  for await (const { timestamp, value } of asyncIterable) {
+    const ema = prevEma === undefined ? value : alpha * value + (1 - alpha) * prevEma;
+    prevEma = 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 lineGen = line()
+    .x(d => x(d.timestamp))
+    .y(d => y(d.ema))
+    .curve(select.curveMonotoneX);
+  
+  return { data, path: lineGen(data) };
+}
+export default createStreamVisualizer;