{"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-ik4mfuy2","versions":[{"created_at":"2026-06-10T23:58:02Z","element_count":73,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"486068c37917b91de697144f149ea74a7bcb9c5bf2e0f7b231738d6e197b2ad4","version":13},{"created_at":"2026-06-10T23:09:47Z","element_count":46,"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":"6db27dc46ac50a0b80642c90aa59bf5ffac7a78e746225f0adfd2a066da66e64","version":7}]}