Use nullable sqlc.narg fields so empty strings are not written to team_role and other optional columns.
Co-authored-by: Cursor <cursoragent@cursor.com>
Expose POST /admin/roles/:role/bulk-deactivate and bulk-reactivate for platform users and team_members, mirroring deactivate/reactivate semantics and optional team member exclusions.
Co-authored-by: Cursor <cursoragent@cursor.com>