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…est features This commit adds several major features: **Local Transcription with WhisperKit** - Add LocalTranscriptionService using WhisperKit for on-device transcription - Add ModelManager for downloading and managing local Whisper models - Add TranscriptionRouter to switch between API and local transcription - Support for multiple model sizes (tiny, base, small, large-v3-turbo) - Model download progress tracking with success/failure alerts - Sandboxed model storage in Documents directory **Voice Isolation** - Add voiceIsolationEnabled setting (enabled by default) - Enable Apple's voice processing on AVAudioInputNode - Reduces background noise and isolates speech at hardware level **Microphone Test Feature** - Add AudioSampler for recording short audio clips (up to 10 seconds) - Playback recorded audio to verify microphone quality - Real-time audio level meter during recording - Respects voice isolation setting for accurate testing **Other Changes** - Rename TranscriptionResult to TranscriptionOutput to avoid WhisperKit collision - Add transcription source and model tracking in history - Update settings UI with model selection and voice isolation toggle 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add @preconcurrency import to ModelManager.swift to handle WhisperKit's non-Sendable types. This was passing on local Swift 6.2.3 but failing on CI's Swift 6.1.2 (Xcode 16.4) due to stricter concurrency checking. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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- Add @preconcurrency import to ModelManager.swift for WhisperKit - Add "CI Environment & Reproducing CI Failures" section to CLAUDE.md - Use swift-actions/setup-swift@v2 with Swift 6.2 to match local dev - Document how to reproduce CI issues locally Using setup-swift action ensures CI uses Swift 6.2 to match local development environment. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Changes
Local Transcription
LocalTranscriptionService- WhisperKit integration with actor-based thread safetyModelManager- Download, delete, and manage local Whisper modelsTranscriptionRouter- Routes between API and local transcription based on settingsVoice Isolation
voiceIsolationEnabledconfiguration settingAudioCaptureService(dictation) andAudioSampler(test)Microphone Test
AudioSampler- Record up to 10 seconds, playback to verify qualityOther
TranscriptionResult→TranscriptionOutputto avoid WhisperKit type collisionTest plan
🤖 Generated with Claude Code