Docs: Update benchmark for openrouter/aurora-alpha

tests/9_stream_visualizer/outputs/openrouter_aurora-alpha.js

@@ -0,0 +1,17 @@
+async function createStreamVisualizer(src,{maxPoints=500,alpha=.5,width=800,height=600,yDomain}){
+  const d3=await import('https://cdn.jsdelivr.net/npm/d3@7')
+  const d=[];let e
+  for await(const{timestamp:t,value:v}of src){
+    e=e===undefined?v:alpha*v+(1-alpha)*e
+    d.push({timestamp:t,value:v,ema:e})
+    if(d.length>maxPoints)d.shift()
+  }
+  if(!d.length)return{data:[],path:''}
+  const x=d3.scaleLinear().domain([d[0].timestamp,d.at(-1).timestamp]).range([0,width])
+  const y=d3.scaleLinear().domain(yDomain||[d3.min(d,d=>d.ema),d3.max(d,d=>d.ema)]).range([height,0])
+  const p=d3.line().x(v=>x(v.timestamp)).y(v=>y(v.ema)).curve(d3.curveLinear)
+  return{data:d,path:p(d)}
+}
+export default createStreamVisualizer;
+// Generation time: 1.456s
+// Result: FAIL