{"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-wr1qfh0b","versions":[{"created_at":"2026-06-04T05:51:47Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.6→99.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"feb505dba06e33d9317a4b377c3c959cc2669322ebf5a99ef91fc0b0d5933ff1","version":4},{"created_at":"2026-06-04T04:58:07Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 45.3→97.6 (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 97.6 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"4542d7302a0f19da31d9205c8607e8309559a9238bc128b0dad8cdecebac6164","version":3},{"created_at":"2026-06-04T04:58:07Z","element_count":52,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"920e447e4879cf24d5a18db454b46bb547f78f312f37decbe54a9021156599dc","version":2}]}