{"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-93axlazv","versions":[{"created_at":"2026-06-04T05:50:41Z","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":"03d613283089be1ad2e661632a2784791e675ac508f95bb15cebe38ab51dbba0","version":10},{"created_at":"2026-06-04T04:52:47Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 74.3→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":"df1e2677b6517f0fe1b57d80089a1f1834413e7ac682f50b492ea269efbf545a","version":9},{"created_at":"2026-06-04T04:52:47Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8d84a32c24cc1acd5129e09a7a431c1023e763e18725c1895fbfb376a63f4878","version":8}]}