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* fix(voice): add per-segment confidence validation in whisper engine (#385) Reject whisper segments with avg token log-probability below -0.7 or entropy above 2.4. Return TranscriptionResult with confidence metadata instead of plain String. Update callers in speech.rs and streaming.rs. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(voice): upgrade default STT model from tiny to base (#385) Base model produces significantly fewer hallucinations than tiny, especially in noisy/quiet conditions. User can still override via config. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(voice): add real-time silence gating in audio capture (#385) Gate sustained silence (>500ms) from being sent to whisper to prevent hallucinations. Maintain 100ms look-ahead ring buffer so speech onset after pauses is not clipped. Thresholds adapt to source sample rate. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(voice): fix Fn key timing race condition in hotkey event loop (#385) start_recording() blocks 1-7s on cpal device init but macOS fires Fn Release almost immediately, causing skipped cycles. Move recording start to spawn_blocking so the event loop stays responsive. Buffer Release events during setup and ensure minimum 1.5s recording duration when release arrives before recording handle is ready. Also includes: capture focused app on hotkey press, pass through pipeline for focus validation before paste. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(voice): validate and restore focus before paste, attempt regardless (#385) Add expected_app parameter to insert_text(). Before Cmd+V, validate focus via accessibility API and restore via AppleScript if shifted. Don't abort paste on focus validation failure — attempt insertion regardless so text is never silently lost. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(voice-ui): align voice server RPC response shape in settings panel (#385) * style(voice): apply rustfmt formatting in text_input * fix(voice): address CodeRabbit regressions in server, streaming, and settings polling --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>