Identity lifecycle on the sys_user table: get/create/update user
(resolved by sys_id, username or email), enable user (active=true +
locked_out cleared), disable user, and user field discovery via
sys_dictionary for mapping. Basic or OAuth 2.0 (password grant)
authentication, stdlib-only scripts.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>