Docs: Update benchmark for test 3

tests/3_signal_pipeline/outputs/anthropic_claude-sonnet-4.5 TEMP_0.7.js

@@ -0,0 +1,54 @@
+const analyzeSignal = async (yamlStr) => {
+  const [
+    { load: loadYaml },
+    math,
+    ndarray,
+    { fft },
+    DOMPurify
+  ] = await Promise.all([
+    import('https://cdn.jsdelivr.net/npm/js-yaml@4/dist/js-yaml.mjs'),
+    import('https://cdn.jsdelivr.net/npm/mathjs@12/lib/esm/index.js'),
+    import('https://cdn.jsdelivr.net/npm/ndarray@1/+esm'),
+    import('https://cdn.jsdelivr.net/npm/ndarray-fft@1/+esm'),
+    import('https://cdn.jsdelivr.net/npm/dompurify@3/dist/purify.es.mjs')
+  ]);
+
+  const config = loadYaml(yamlStr);
+  const N = config.sampleRate * config.duration;
+  
+  const signal = Array.from({ length: N }, (_, i) => {
+    const t = i / config.sampleRate;
+    return config.components.reduce((sum, { frequency, amplitude }) =>
+      sum + amplitude * math.sin(2 * math.pi * frequency * t), 0);
+  });
+
+  const real = ndarray(new Float64Array(signal), [N]);
+  const imag = ndarray(new Float64Array(N), [N]);
+  
+  fft(1, real, imag);
+
+  const magnitude = Array.from({ length: Math.floor(N / 2) + 1 }, (_, k) =>
+    math.sqrt(math.pow(real.get(k), 2) + math.pow(imag.get(k), 2)) / (N / 2));
+
+  const peaks = magnitude
+    .map((mag, k) => ({ 
+      frequencyHz: Math.round(k * config.sampleRate / N), 
+      magnitude: Math.round(mag * 100) / 100 
+    }))
+    .filter(({ magnitude }) => magnitude > 0.1)
+    .sort((a, b) => b.magnitude - a.magnitude);
+
+  const html = `<table><tr><th>Frequency (Hz)</th><th>Magnitude</th></tr>${
+    peaks.map(({ frequencyHz, magnitude }) => 
+      `<tr><td>${frequencyHz}</td><td>${magnitude}</td></tr>`).join('')
+  }</table>`;
+
+  return {
+    peaks,
+    html: DOMPurify.sanitize(html),
+    signalLength: N
+  };
+};
+export default analyzeSignal;
+// Generation time: 8.641s
+// Result: FAIL