{"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-tzgn91ka","versions":[{"created_at":"2026-06-04T05:52:04Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.0→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2f072d9197abb69a1818ebb3e6c350b469ae992e3eabe4113da8656987009471","version":10},{"created_at":"2026-06-04T04:52:53Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 73.6→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"099c89a93bb061ac2b719183806c7b29b1f73630ae72ccf5d6ad6ad42bf87e70","version":9},{"created_at":"2026-06-04T04:52:53Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"caf6c91c81f98644d0bdf6c4e20aeceafc3e3bd2ca6202035767d307db130683","version":8}]}