meeting-assistant/openspec/changes/add-macos-meeting-audio-capture/tasks.md

1. macOS Capture Behavior

• 1.1 Specify macOS microphone and computer-output capture behavior and Windows isolation.
• 1.2 Add failing behavior tests for macOS PCM streaming, platform registration, and the public recording endpoints.
• 1.3 Implement the managed macOS audio-source and process-lifetime adapter.
• 1.4 Implement and package the AVFoundation/ScreenCaptureKit Swift helper.
• 1.5 Register the macOS composite source without changing the Windows registration path.

2. Verification and Documentation

• 2.1 Document macOS permissions, build packaging, and recording behavior.
• 2.2 Capture and inspect a short example mixed WAV through the new implementation.
• 2.3 Run focused tests, portable tests/build, Windows-target regression compilation, strict OpenSpec validation, and refactoring/code review.