Initial commit: soothe2 RE workspace + roadmap

- Инфраструктура: RTTI-дампы (rtti_dsp/full.json), декомпиляции DSP-классов (decomp_*.txt),
  Ghidra-скрипты (Dump*.java, ImportRtti*.java, Diag.java), depthcurve/curve_fits LUT.
- Поведенческая модель sim_v5.py + sim.py (RMSE ~0.3dB), утилиты (measure, tt_sweep, patchparam,
  sweep, harness_*, verify_sim).
- summary.md + roadmap.md (контракт из manual M1-M12, топология пайплайна из OCR, фазы A-C).
- pipeline_ocr.txt: OCR диаграммы Appendix A (mid/side ручка, trim/mix/bypass порядок).

synth_multi.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+import wave, array, math, sys
+
+SR = 44100
+
+def synth_multi(path, freqs, dur=6.0, amp=0.5, am=0.3, sr=SR):
+    n = int(sr*dur)
+    out = [0.0]*n
+    for f in freqs:
+        for i in range(n):
+            t = i/sr
+            # each tone: carrier + gentle AM (makes it "resonant" for the detector)
+            out[i] += math.sin(2*math.pi*f*t)*(1.0 + am*math.sin(2*math.pi*(f/8.0)*t))
+    peak = max(abs(v) for v in out) or 1.0
+    sc = amp/peak
+    a = array.array('h')
+    for i, v in enumerate(out):
+        t = i/sr
+        fade = min(1.0, t/0.05, (dur-t)/0.1)
+        a.append(max(-32767, min(32767, int(v*sc*32767*fade))))
+    w = wave.open(path, 'wb')
+    w.setnchannels(1); w.setsampwidth(2); w.setframerate(sr)
+    w.writeframes(a.tobytes())
+    w.close()
+    print("wrote", path, "tones", len(freqs), "amp", amp)
+
+if __name__ == '__main__':
+    freqs = [int(f) for f in sys.argv[2].split(',')]
+    synth_multi(sys.argv[1], freqs, dur=float(sys.argv[3]) if len(sys.argv)>3 else 6.0)