e9b6936904
Phase 1-3 of the builder subsystem on the Mac mini: - Express + SQLite + sessions scaffolding, LAN-only service on port 3090 - App Store Connect JWT client (ES256 signing, devices/profiles/bundleIds) - Device management UI with Apple-side registration - Fastlane sigh wrapper with profile cache + auto-install to ~/Library/ - launchd plist + deploy script for Mac mini supervision