-- Down migration for 0026_observability_hitl (reverse order).

DROP TABLE IF EXISTS notification_prefs;

DROP INDEX IF EXISTS idx_project_members_user;
DROP TABLE IF EXISTS project_members;

ALTER TABLE acp_sessions DROP COLUMN IF EXISTS tokens_total;
ALTER TABLE acp_sessions DROP COLUMN IF EXISTS cost_usd;

DROP INDEX IF EXISTS idx_audit_target;
DROP INDEX IF EXISTS idx_audit_created;