{"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-j30z5pi7","versions":[{"created_at":"2026-06-04T05:50:40Z","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":"69aea2f7e9a70e171b50a8e58ffcf8a0dffbd8604ec87724e7480e1dbf9dbe0d","version":10},{"created_at":"2026-06-04T04:53:56Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 68.2→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":"9957d9e9e386def2a0e31e649154bbf483ccedcd4592aca15639e6267e75b8b1","version":9},{"created_at":"2026-06-04T04:53:56Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bcdda92e2e47bc1111d4b5e8b4d4dd30e697cc2957d360d8da63e710f2e5fca7","version":8}]}