Sync macOS paste clipboard safety to X-ASR branch

Ariver

2026-06-13 859c14d783dc31fe68550b114fc8adeea09dab2a

 Release/PrivateVoice-Dictation-2.1.24-build20260603.1934/RELEASE_MANIFEST.md

@@ -44,6 +44,7 @@
- DMG `hdiutil verify`: PASS.
- DMG contents include `PrivateVoice Dictation.app` and `Applications -> /Applications`: PASS.
- Copied release DMG SHA256 verification: PASS.
- Visual smoke: launched local app, verified window title `PrivateVoice Dictation`, sidebar brand `PrivateVoice` / `Private. Offline.`, and About version `v2.1.24 (build 20260603.1934)`: PASS.

## Artifact