{"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-n7qagb2t","versions":[{"created_at":"2026-06-04T17:01:37Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (93.7->93.8)","saved_by":"editor","sha256":"57c5e09e27a4acad41731d5cca740caeeb949b37c573e11b3914e6d48c46e4b2","version":11},{"created_at":"2026-06-04T05:54:02Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.7→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"15c3f97e722060d2ebcb28374b96cc344f698242ba39d5aae4fecea1bd27b0f4","version":10},{"created_at":"2026-06-04T04:55:56Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 58.6→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"43f2f935eb4727a010db6e39f49c6194700429a1b331373cd81d4c3dbd53d3e2","version":9},{"created_at":"2026-06-04T04:55:56Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"14e3f162c75b4a028eebdd1727937536bf67392a132f156b717b88a6ad8b03f9","version":8}]}