-- 修复「实例 completed 但项目仍为 active」的历史不一致数据。
-- 用法：
--   psql "$DATABASE_URL" -f scripts/fix-completed-instance-lifecycle.sql
-- Dry-run（仅统计）：
--   psql "$DATABASE_URL" -c "SELECT COUNT(*) FROM projects p JOIN project_workflow_instances i ON i.project_id = p.id AND i.status = 'completed' WHERE p.lifecycle_status <> 'planning';"

BEGIN;

UPDATE projects p
SET lifecycle_status = 'planning',
    active_workflow_key = '',
    updated_at = now()
FROM project_workflow_instances i
WHERE i.project_id = p.id
  AND i.status = 'completed'
  AND p.lifecycle_status <> 'planning';

COMMIT;