Add test_check_status_completion_wakes_user_manager: register the auth tools against a stub MCP, drive nc_auth_check_status through a completed Login Flow (mocked storage + poll), and assert it stores the app password and rings the background-sync doorbell. The MCP-tool wake path was previously only verified by inspection (round-2 review nit); all three notify_user_provisioned() call sites now have dedicated coverage. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>