{"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-g5-1mkmpv84","versions":[{"created_at":"2026-06-04T07:22:05Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.8→99.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"fb7fd252cd11866a4f19db3ccf9f58fe131e5bf74ce7183bed684a32640288cb","version":5},{"created_at":"2026-06-04T05:49:50Z","element_count":97,"note":"GA diverse re-design 2026-06-04: 総合 99.7→97.8 (中庭ロの字・吹抜 ピアノ室 PV 天窓 / 適応度 97.8 (美 100 環 90 楽 100))","saved_by":"editor","sha256":"08cf286ce403de99e74c088fd695dcde397b46d4b6fe13f0aecd635fb3a0acc6","version":4},{"created_at":"2026-06-04T04:56:16Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 56.6→99.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"78a30e47a043c969e8981d2e1f6bce7af4dc95a1b4210160903642368deb72ce","version":3},{"created_at":"2026-06-04T04:56:16Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"388506f2b645adbaf9c5d184bb05d9c214ca0ce62e8b689343707dd1a023a9b5","version":2}]}