Add dedicated self-hosted runners for parallel Unity builds:
- unity-mac: Mac Unity builds and deployment
- unity-windows: Windows Unity builds (cross-compiled on Mac)
- notarize: Notarization waiting (lightweight, doesn't block builds)
Split mac_build.yml into 3 jobs:
1. build-and-sign (unity-mac): Build, sign, submit to Apple
2. wait-notarization (notarize): Wait for Apple, staple ticket
3. deploy (unity-mac): Deploy notarized app
This allows:
- Mac and Windows Unity builds to run in parallel
- Notarization waiting doesn't block other builds
- All runners share the same Mac Mini hardware
New scripts:
- notarize_submit.sh: Submit without waiting, output submission ID
- notarize_wait.sh: Wait for submission ID, staple ticket
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
