{"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-dz4x9gtb","versions":[{"created_at":"2026-06-04T16:59:55Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"7959465a7174f1b705f555c356d921289cec1571decf7ca944f942329add0fe4","version":11},{"created_at":"2026-06-04T05:52:52Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→92.4 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"be4bafc76208fdacb84f45c73241319c11f162e0a8bd76e25b86b986086bea00","version":10},{"created_at":"2026-06-04T04:55:47Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.4→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":"d678b55ad0777a6b31406d354b2d7cb8dda10bf4497f514cac0c538f53ab6f21","version":9},{"created_at":"2026-06-04T04:55:47Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"78c368598df5528909af678bc52cc07d1b6fb2a856c4122454e07c6d6744a742","version":8}]}