-- Adds users.auto_approve_requests for the per-user auto-approve toggle
-- (#355 sub-feature surface). The handler that honors this flag in
-- the request submission flow is sibling work (U2.5 follow-up); this
-- migration just lands the schema + the column default.
--
-- Default false: existing users keep manual approval, opt-in via the
-- admin user-management UI.

ALTER TABLE users
    ADD COLUMN IF NOT EXISTS auto_approve_requests boolean NOT NULL DEFAULT false;