{"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-usepn9v5","versions":[{"created_at":"2026-06-04T17:01:19Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"8b1c2acfa2d4e5599c2f2d1895aba2873fd0b7ec1ffe5426411e4e75f3da5e3b","version":11},{"created_at":"2026-06-04T05:52:50Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"faecb7707fbfa274a16c696adae99bd5f799eab7c092786772194f52d942a608","version":10},{"created_at":"2026-06-04T04:59:13Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 37.9→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"327af1f010c4f74044bf5b07e1925a092d92da85a704e8c857a4d1321a20aed5","version":9},{"created_at":"2026-06-04T04:59:13Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1787dd07505e524c5d1c0ececfd284ff7ded5b32ef2cb046a0d889bb0f324a39","version":8}]}