- Add Gitea Actions macOS CI on a self-hosted runner.
- Fetch Argyll sidecars before build.
- Universal xcodebuild test with ARCHS='arm64 x86_64' ONLY_ACTIVE_ARCH=NO.
- CODE_SIGNING_ALLOWED=NO for local agent debug/test builds.
- Optional release packaging job on milestone and version tags.
- Add scripts/package-release.sh:
- fetch-argyll → generate project → Release universal build.
- Sign .app with CODESIGN_IDENTITY (Developer ID) or ad-hoc.
- Re-verify every bundled Argyll Mach-O sidecar with codesign -dvv.
- Build DMG with dmgbuild and optional notarize/staple.
- Add scripts/verify-sidecar-signatures.sh for a hard-fail sidecar check.
- Add scripts/dmgbuild-settings.py with optional background art support.
- Update .gitignore to exclude *.dmg, *.zip, Release/, and notarization/.
Refs #32
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