Gmail client registration is unavailable

The Google authorization prototype and its registration command have been removed. Live Google ingestion will be reimplemented when needed. No Google Cloud project, OAuth client, or account authorization is required for the current application.

Use Google Takeout to export MBOX and import those files locally. For example, export your.name@gmail.com through Takeout. See the Gmail acquisition guide for the supported workflow. The former registration illustrations remain historical assets, not instructions for the current software.