{"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-oebu6iai","versions":[{"created_at":"2026-06-04T05:52:19Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 95.5→97.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.5 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"9194b6f90c0573989b4cecc84dd0e4ce8fd40186412f03bff168a458ec9e63e8","version":10},{"created_at":"2026-06-04T04:56:26Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 55.3→95.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 95.5 (美 93 環 97 楽 100))","saved_by":"editor","sha256":"c99fcd079c06b30a2bedd9628343d6e0f69f5091dc340d6e1485355a57352c37","version":9},{"created_at":"2026-06-04T04:56:26Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d45bca7b71e5159610d2636daa509ea7e6a44d8a807964190599fffa6b838e96","version":8}]}