{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-qfjqfwi7","versions":[{"created_at":"2026-06-10T23:39:58Z","element_count":90,"note":"5軸GA polish 50->98 by M5 (autonomous)","saved_by":"mcp","sha256":"694f555839ba43d081dfb6cf62ea81de1c48577ca21599dda107caaeb6868b25","version":11},{"created_at":"2026-06-10T23:09:13Z","element_count":54,"note":"legacy fix: rooms設備語除去 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"70e5875a6be87c218d86977e6e276d0578b48043688657d3a957452d451821a1","version":7}]}