{"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-nubcwqhk","versions":[{"created_at":"2026-06-04T05:52:49Z","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":"2026-06-04T04:55:51Z","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":"5aecd52cb1420bd08a0eb8b88631ac234d3ebdac3aab35a29215bce644d5d36c","version":9},{"created_at":"2026-06-04T04:55:51Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"beb422a4718d0907330f8eca954820a14158f6205f22c1951fba928e0aeddd29","version":8}]}