{"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-sif18fdk","versions":[{"created_at":"2026-06-04T17:00:00Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (94.6->100.0)","saved_by":"editor","sha256":"c624063ebcd171d4a70984e71857aefb9c6e53d5be3044e0ee74ed29218190d1","version":11},{"created_at":"2026-06-04T05:52:45Z","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":"43e760f3cabf230f221312d13fc7670b5b3c07a5bbd13c6c0290ce561eeb8cc8","version":10},{"created_at":"2026-06-04T04:55:54Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 58.9→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":"9293e1e5f0f0d6ba3030c955de6aeca67e9abb5d3a6b807b1390e024e8e8ad20","version":9},{"created_at":"2026-06-04T04:55:54Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"07e23f0a013f829da007e7df1bb791558b12bf4828e499ac2fc37b7e0efa161b","version":8}]}