{"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-d5lvy6tr","versions":[{"created_at":"2026-06-04T05:50:13Z","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":"8c04362f3512230ac334daeb93a4efa3bea052f279003db48cf8918753492c67","version":10},{"created_at":"2026-06-04T04:52:39Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 75.1→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":"7c0a20d62a4a5cf67944eb2326dedac4e29bfaea8e2015df771623a6fe23393e","version":9},{"created_at":"2026-06-04T04:52:39Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ebab586e6624547c3b713f274f869c3166439a76ce84243fa861f2f6c8a7d3d0","version":8}]}