-- 上传意图到达终态后，Worker 需要可靠记录临时对象是否已从对象存储清理。
SET search_path TO atlas, public;

ALTER TABLE media_upload_intents
    ADD COLUMN object_cleaned_at TIMESTAMPTZ;

CREATE INDEX ix_media_upload_intents_cleanup
    ON media_upload_intents (workspace_id, status, created_at)
    WHERE status IN ('failed', 'expired') AND object_cleaned_at IS NULL;