fix(go): App Store distribution — re-enable App Sandbox + macOS team

Two validation failures from Xcode Organizer when uploading the macOS
build to App Store Connect:

- "No Team Found in Archive" — DEVELOPMENT_TEAM was set on the iOS
  build configs only. Added AP69DBR725 to the macOS Debug and Release
  configs so Xcode's distribution flow can resolve the team.

- "App sandbox not enabled" — the entitlements file had sandbox off
  (left disabled earlier for the Developer ID DMG path while debugging
  amfid keychain restrictions). MAS distribution requires it on, and
  with GoogleSignIn now replacing FirebaseAuth the keychain-access-
  groups conflict that originally forced sandbox off is gone.

Also: catch package-lock.json up to package.json 0.4.0 (was stale from
the version bump commit since lockfile wasn't regenerated then).