Phase 8: replace voice clips with Samantha TTS, fix end click

src/main/voice/gen_wav_arrays.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+"""
+Regenerate sit_up_wav.c and thank_you_good_work_wav.c from WAV files.
+Run from repo root: python3 src/main/voice/gen_wav_arrays.py
+"""
+import os
+
+WAV_DIR = os.path.join(os.path.dirname(__file__))
+
+CLIPS = [
+    ("sit_up.wav",              "sit_up_wav",              "sit_up_wav.c"),
+    ("thank_you_good_work.wav", "thank_you_good_work_wav", "thank_you_good_work_wav.c"),
+]
+
+COLS = 16
+
+for wav_file, sym, out_file in CLIPS:
+    wav_path = os.path.join(WAV_DIR, wav_file)
+    out_path = os.path.join(WAV_DIR, out_file)
+
+    with open(wav_path, "rb") as f:
+        data = f.read()
+
+    lines = ["#include <stdint.h>", "#include <stddef.h>", ""]
+    lines.append(f"// Auto-generated from voice/{wav_file} — do not edit manually")
+    lines.append(f"const uint8_t {sym}_data[] = {{")
+
+    for i in range(0, len(data), COLS):
+        chunk = data[i:i + COLS]
+        hex_vals = ", ".join(f"0x{b:02x}" for b in chunk)
+        lines.append(f"    {hex_vals},")
+
+    lines.append("};")
+    lines.append(f"const uint32_t {sym}_len = {len(data)}u;")
+    lines.append("")
+
+    with open(out_path, "w") as f:
+        f.write("\n".join(lines))
+
+    print(f"wrote {out_file}  ({len(data)} bytes from {wav_file})")