phone/voice_cmd.py — listens via termux-speech-to-text, parses commands
(go forward/back, turn left/right, stop, e-stop, go to waypoint, speed
up/down, status) and publishes structured JSON to saltybot/phone/voice_cmd.
TTS confirmation via termux-tts-speak. Manual text fallback via --text flag.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
