Docs: Update benchmark for deepseek/deepseek-v4-pro

tests/3_signal_pipeline/outputs/deepseek_deepseek-v4-pro.js

@@ -0,0 +1,42 @@
+async function analyzeSignal(y) {
+  const [Y, M, Nd, Fft, P] = await Promise.all([
+    import('https://esm.run/js-yaml@4.1.0').then(m => m.default),
+    import('https://esm.run/mathjs@11.8.0').then(m => m.default),
+    import('https://esm.run/ndarray@1.0.19').then(m => m.default),
+    import('https://esm.run/ndarray-fft@1.0.3').then(m => m.default),
+    import('https://esm.run/dompurify@3.0.5').then(m => m.default)
+  ]);
+  const cfg = Y.load(y),
+    sr = cfg.sampleRate,
+    d = cfg.duration,
+    comps = cfg.components,
+    N = sr * d,
+    sig = Array.from({ length: N }, (_, i) => {
+      const t = i / sr;
+      return comps.reduce((s, c) => s + c.amplitude * M.sin(2 * M.pi * c.frequency * t), 0);
+    }),
+    real = Nd(new Float64Array(sig), [N]),
+    imag = Nd(new Float64Array(N), [N]);
+  Fft(1, real, imag);
+  const half = N / 2,
+    peaks = [];
+  for (let k = 0; k <= half; k++) {
+    const re = real.get(k),
+      im = imag.get(k),
+      mag = M.sqrt(re * re + im * im) / half;
+    if (mag > 0.1) peaks.push({ f: Math.round(k * sr / N), m: Math.round(mag * 1e2) / 1e2 });
+  }
+  peaks.sort((a, b) => b.m - a.m);
+  let h = '<table><tr><th>Frequency (Hz)</th><th>Magnitude</th></tr>';
+  for (const p of peaks) h += `<tr><td>${p.f}</td><td>${p.m}</td></tr>`;
+  h += '</table>';
+  const sH = P.sanitize(h);
+  return {
+    peaks: peaks.map(p => ({ frequencyHz: p.f, magnitude: p.m })),
+    html: sH,
+    signalLength: N
+  };
+}
+export default analyzeSignal;
+// Generation time: 102.963s
+// Result: FAIL