{"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-ychtblyh","versions":[{"created_at":"2026-06-04T05:51:31Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.3→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"3ee6aefb4f9ac1dadf11c194d941f254ec802e20be31ac8deddac3929b69c7f9","version":10},{"created_at":"2026-06-04T04:54:43Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.5→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"6ac687777067e100308dc2c2906f6d3dc66d419f359df27fcd06a4d986f3e61d","version":9},{"created_at":"2026-06-04T04:54:43Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"941565070fff009ed76e3184d4890a4ef07f066199f41f8eb9536da0a907f8f9","version":8}]}