{"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-6ycqrfn9","versions":[{"created_at":"2026-06-04T05:50:05Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→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":"c0fda0a67ddbe0243b1bb4ba4d6bd652b4a9905f8caa6918b1ac2db13c16e2d4","version":11},{"created_at":"2026-06-04T05:03:57Z","element_count":98,"note":"GA batch-improve pass2 2026-06-04: 総合 81.5→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":"3415b3aa0c6a3734b1cfbbefa70016270eba0368119715e02f03fb4ce5de2b05","version":10},{"created_at":"2026-06-04T04:54:49Z","element_count":41,"note":"GA batch-improve 2026-06-04: 総合 65.1→81.5 (中庭ロの字・縁側 ロフト ピアノ室 PV 雨水 天窓 / 適応度 81.5 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"2e029e0b231cc84053134edbb452a592f5e9b15cf422f0a9c447cc73a925d8a3","version":9},{"created_at":"2026-06-04T04:54:49Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"dbb46176072027ddb86aa7184603cd7a52baf75f2510efb23abb0bd71a088df7","version":8}]}