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.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+import wave, array, math, sys
+
+SR = 44100
+
+def synth(path, freqs, dur=6.0, amp=1.0, gain_dbs=None, sr=SR):
+    # amp = target peak amplitude (1.0 = full scale)
+    n = int(sr*dur)
+    out = [0.0]*n
+    if gain_dbs is None:
+        gain_dbs = [-20*math.log10(len(freqs))*0 + 0]*len(freqs)  # equal
+    for k, f in enumerate(freqs):
+        g = 1.0/len(freqs) if len(gain_dbs) != len(freqs) else 10**(gain_dbs[k]/20)
+        for i in range(n):
+            t = i/sr
+            out[i] += g*math.sin(2*math.pi*f*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/0.03, (dur-t)/0.05)
+        a.append(max(-32767, min(32767, int(v*sc*fade*32767))))
+    w = wave.open(path, 'wb')
+    w.setnchannels(1); w.setsampwidth(2); w.setframerate(sr)
+    w.writeframes(a.tobytes())
+    w.close()
+
+if __name__ == '__main__':
+    # usage: synth.py <freq> [<amp level dBFS or amplitude>] [<path>]
+    import os
+    freq = float(sys.argv[1])
+    amp = 1.0
+    path = '/home/m/soothe-bt/tone.wav'
+    for a in sys.argv[2:]:
+        try:
+            amp = float(a)
+        except ValueError:
+            path = a
+    synth(path, [freq], amp=amp)
+    print("wrote", path, freq, "Hz amp", amp)