{"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-vl7u5q9m","versions":[{"created_at":"2026-06-04T17:01:26Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"9c5ce684c04b359cbb5e8d8a2364cd36a77270db81420e02ddaebf030b7bf25a","version":11},{"created_at":"2026-06-04T05:52:37Z","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":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":10},{"created_at":"2026-06-04T04:55:10Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.8→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":"a2b3eed8efd352df11994bfdf74a96514ae0980677101bd788fa17009dc3fb4a","version":9},{"created_at":"2026-06-04T04:55:10Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2b2ed090d06ccb6cfb0d40c0d0132d38e31fe2d22a5b633871ca3e871e083f7e","version":8}]}