feat(audio,android): add MobileVoiceAudioBackend + AndroidVoiceUnit (oboe-rs)
Add the cross-platform MobileVoiceAudioBackend trait, plus the
Android implementation AndroidVoiceUnit backed by oboe-rs 0.6.x.
AndroidVoiceUnit owns AAudio stream setup with VoiceCommunication
usage/preset, performance-mode LowLatency request, sharing-mode
Exclusive best-effort, hardware AEC/NS/AGC engagement via JNI, and
the diagnostics snapshot publish path used by SDD-116 evidence
collection.
Cargo.toml: adds oboe = "0.6" under the Android target.
Trace: SDD-111, SDD-112, SDD-113, SRS-210, SRS-211, SRS-212, SRS-213,
SRS-214.
EdisonJwa
76c6d1d40c