{"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-gs11hj9q","versions":[{"created_at":"2026-06-04T17:01:41Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (90.1->98.8)","saved_by":"editor","sha256":"b353ba2285aa1aac13437a631e22aabcc56ef6d9760742d1898efade6321620e","version":11},{"created_at":"2026-06-04T05:55:39Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 92.6→90.1 (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 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"9f15ed92b33a83b027a5babb411c1b55e35bf884594706df6cd50edf3a4c346b","version":10},{"created_at":"2026-06-04T04:56:22Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 56.1→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cee7e8f5546406df3b2b0e0708dc23f1b9511b1995fcf941435ec34600e44bfa","version":9},{"created_at":"2026-06-04T04:56:22Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"be531d8c59a5f4fc536a298005212efa605d8a8016510ed1276bda454c7eef31","version":8}]}