desktop-v0.4.2

App Preview — desktop build (auto-released from uat).

• macOS (.dmg): signed with Developer ID & notarized — opens with no Gatekeeper warning.
• Windows (.exe): NSIS installer. Not Authenticode-signed yet, so SmartScreen may warn once
→ click "More info" ▸ "Run anyway". The app itself runs fine.

Auto-update enabled on both platforms (File ▸ Check for Updates…).

(If the Apple signing secrets are unset, the macOS build falls back to unsigned;
then run xattr -dr com.apple.quarantine "/Applications/AppPreview.app" to open.)