{"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-vxw0iiyi","versions":[{"created_at":"2026-06-04T05:50:54Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.4→99.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"0b4a853169125ffb136d7a0c2d9df33991b3993bda4a18f701e78552e7d349b4","version":10},{"created_at":"2026-06-04T04:54:17Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 66.8→99.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"3d6572c3dacaf8368b8455b11af1604e993c745f8ca6a7ca0db682e8ca455cc7","version":9},{"created_at":"2026-06-04T04:54:17Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"024e1568fbe0571db7fcccd4f2ccb50cb48031a1b7cd3d9a1d5b3eb3e55db585","version":8}]}