-- Rollback initial schema - drop tables in reverse dependency order DROP TABLE IF EXISTS notification_events; DROP TABLE IF EXISTS audit_events; DROP TABLE IF EXISTS policy_violations; DROP TABLE IF EXISTS policy_rules; DROP TABLE IF EXISTS jobs; DROP TABLE IF EXISTS certificate_versions; DROP TABLE IF EXISTS certificate_target_mappings; DROP TABLE IF EXISTS deployment_targets; DROP TABLE IF EXISTS managed_certificates; DROP TABLE IF EXISTS agents; DROP TABLE IF EXISTS issuers; DROP TABLE IF EXISTS renewal_policies; DROP TABLE IF EXISTS owners; DROP TABLE IF EXISTS teams; DROP EXTENSION IF EXISTS "uuid-ossp";