{"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-2-sio7zoiy","versions":[{"created_at":"2026-06-04T05:51:07Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"7225ee9320622d19976d5052c932cd843a6dc25ba2b0b071a5288aec75a91db1","version":10},{"created_at":"2026-06-04T04:54:29Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.2→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"732c83a30f981a42b44fe8c2211664c6967c24d89608e2c7294af90f22b4ab00","version":9},{"created_at":"2026-06-04T04:54:29Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b2ccf7ff79a4ce3eaa409d0c09fddeccd0c39d1e7583cfc1b324b2a317ad783c","version":8}]}