{"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-t6dhv03y","versions":[{"created_at":"2026-06-04T05:51:07Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"7225ee9320622d19976d5052c932cd843a6dc25ba2b0b071a5288aec75a91db1","version":10},{"created_at":"2026-06-04T04:55:25Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 61.6→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"1d7d758154a9650c678865189669c5c25e20397750b69cd9817420f24b480207","version":9},{"created_at":"2026-06-04T04:55:25Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"56268682ede5b075be529e9d6c9ea1b7b511ce446b3856ff4fbb9d82c59a47fc","version":8}]}