{"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-668oehio","versions":[{"created_at":"2026-06-04T05:51:19Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.7→98.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"a5aa50d85c87cbcb8ecb530e3f7f5f8a2d97c510821166c6f83d4656cfae9301","version":10},{"created_at":"2026-06-04T04:58:39Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 41.8→98.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"f90b4b8b235ba6824f614111296ce9bf2aac73d715127c252b4287acde0ef1cd","version":9},{"created_at":"2026-06-04T04:58:39Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"27a07b104fad32966134f841c2a9b9bebcda7c1cefd9e0b22a0a24a97554db50","version":8}]}