Docs: Update benchmark for google/gemini-3.8-flash EFF:high

tests/3_signal_pipeline/outputs/google_gemini-3.8-flash EFF_high.js

@@ -0,0 +1,49 @@
+export async function analyzeSignal(yamlString) {
+  const [yaml, math, ndarray, fft, DOMPurify] = (
+    await Promise.all([
+      import('https://esm.sh/js-yaml'),
+      import('https://esm.sh/mathjs'),
+      import('https://esm.sh/ndarray'),
+      import('https://esm.sh/ndarray-fft'),
+      import('https://esm.sh/dompurify')
+    ])
+  ).map(m => m.default ?? m);
+
+  const { sampleRate, duration, components } = yaml.load(yamlString);
+  const N = sampleRate * duration;
+  const halfN = N / 2;
+
+  const signal = Float64Array.from({ length: N }, (_, i) => {
+    const t = i / sampleRate;
+    return components.reduce(
+      (sum, { frequency, amplitude }) => sum + amplitude * math.sin(2 * math.pi * frequency * t),
+      0
+    );
+  });
+
+  const real = ndarray(signal, [N]);
+  const imag = ndarray(new Float64Array(N), [N]);
+  fft(1, real, imag);
+
+  const peaks = [];
+  for (let k = 0; k <= halfN; k++) {
+    const magnitude = math.sqrt(real.get(k) ** 2 + imag.get(k) ** 2) / halfN;
+    if (magnitude > 0.1) {
+      peaks.push({ frequencyHz: (k * sampleRate) / N, magnitude });
+    }
+  }
+
+  peaks.sort((a, b) => b.magnitude - a.magnitude);
+  for (const p of peaks) {
+    p.frequencyHz = Math.round(p.frequencyHz);
+    p.magnitude = +p.magnitude.toFixed(2);
+  }
+
+  const rows = peaks.map(p => `<tr><td>${p.frequencyHz}</td><td>${p.magnitude}</td></tr>`).join('');
+  const html = DOMPurify.sanitize(`<table><tr><th>Frequency (Hz)</th><th>Magnitude</th></tr>${rows}</table>`);
+
+  return { peaks, html, signalLength: N };
+}
+export default analyzeSignal;
+// Generation time: 54.838s
+// Result: PASS