Place google-services.json at the Android app module root (app/google-services.json)
where the com.google.gms.google-services Gradle plugin expects it, via a new
native-push:copy-assets lifecycle hook. The previous 'assets' manifest mapping
targeted app/src/main/assets/ (wrong location) and failed native:plugin:validate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>