chore: restore product scaffold to rollback baseline

crates/chanora_audio/src/lib.rs

@@ -6,7 +6,7 @@
 //! ## What's wired in this Beta
 //!
 //! * Default-input capture via platform audio backends (Oboe on Android,
-//!   VoiceProcessingIO on Apple platforms, PipeWire/PulseAudio on Linux, cpal on Windows)
+//!   VoiceProcessingIO on Apple platforms, cpal/SDL elsewhere)
 //! * Frame-aligned 20 ms / 48 kHz mono Opus encoding via `audiopus`
 //! * Forward encoded frames to the protocol crate as `OutPacket`s
 //! * Inbound voice packets fed to `tsclientlib::audio::AudioHandler`
@@ -32,7 +32,6 @@ pub mod audio_processing;
 pub mod debug_wav;
 mod engine;
 pub mod frame;
-#[cfg(any(target_os = "android", target_os = "ios", target_os = "macos"))]
 pub mod mobile_voice_backend;
 pub mod mode_stack;
 pub(crate) mod opus_voice;
@@ -45,11 +44,10 @@ pub mod transmit_mode;
 pub mod transmit_selector;
 pub mod vad;
 pub mod voice_activity;
-#[cfg(any(target_os = "android", target_os = "ios", test))]
 pub(crate) mod voice_render;
 
 #[cfg(target_os = "linux")]
-mod linux_pipewire_input;
+mod sdl_output;
 
 #[cfg(any(target_os = "ios", target_os = "macos"))]
 mod ios_voice_unit;