{"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-mugenspiralmoontower-vuvt1fhw","versions":[{"created_at":"2026-06-04T16:59:42Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"c4d84024516abab8ddd439fb0de0da574d14c761607362ebc8b9c7e460a09d32","version":5},{"created_at":"2026-06-04T05:52:26Z","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":"05a23daa68d335f0be88a820fd6ee950b9fc80fe6da8e43f6e28f0f954737f0c","version":4},{"created_at":"2026-06-04T04:59:43Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 14.1→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":"0a598ce00ee2ef0b3c1857239ededbfc9ded12ea3f248e51db3693d24877ac74","version":3},{"created_at":"2026-06-04T04:59:43Z","element_count":317,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"44bbf805f28bf0371e87e157caffae06ea98a47bc1c234bb1128bcfceab671c0","version":2}]}