//! Voice Processing Module
//!
//! Speech-to-text and text-to-speech services.
//! Supports:
//! - API-based STT (Groq Whisper, OpenAI-compatible, Voicebox)
//! - Local STT (whisper.cpp / rwhisper)
//! - API-based TTS (OpenAI, OpenAI-compatible, Voicebox)
//! - Local TTS (Piper)
//!
//! This file is declarations only — no function definitions live here
//! (CONTRIBUTING.md); [`availability`] holds the local-backend probes.
pub
pub use ;
pub use ;
pub use ;