docs(wiki): add ops-voice reference (v2.9.1)
Covers native macOS Phone/FaceTime, Zoom start|join|schedule, smart
calendar join with AV policy + lid-state mic + Elgato auto-launch,
Twilio voice/SMS, Bland AI agent calls, ElevenLabs TTS, Groq Whisper.
Cross-OS notes: macOS full, Linux full (no Apple-only), Windows/WSL
partial. Rule 6 outbound-comms guardrail documented inline.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>