{"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-70heyeja","versions":[{"created_at":"2026-06-04T07:22:19Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.6→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":"eeff456511193a6f93d63f2a85268e023f9b06d635694b73cd79c36760311990","version":11},{"created_at":"2026-06-04T05:54:51Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 93.6→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"9b7508d252df38ebeb166f5fae5aaa6ef2e4e5c4ad16a03d4d0989a0718408bc","version":10},{"created_at":"2026-06-04T04:56:33Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 53.1→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"1bbf1a5e4cd332cda08da3c427c065449c43a29bb03c3b3a25c75f45fb011206","version":9},{"created_at":"2026-06-04T04:56:33Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"252c8f68af97e15bcc18686546de45e1815bd13753454afb7153685923077124","version":8}]}