gplay setup (auth onboarding)

Get gplay talking to the Google Play Developer API. This skill covers the auth namespace end to end; for the conventions every command shares (credential resolution order, exit codes, output), see gplay-cli-usage.

The credential

gplay authenticates as a Google Cloud service account with the Android Publisher role, invited to your Play Console. You supply its JSON key one of three ways (resolution order in gplay-cli-usage):

• GPLAY_SERVICE_ACCOUNT, a path to the JSON file or the inline JSON itself (handy for CI secrets).
• --service-account <path-or-json> on any command, overrides the env.
• A stored Account registered with gplay auth login (the credential lands in the OS keystore, see gplay auth status for where).

First-run flow