{"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-l28lpx4b","versions":[{"created_at":"2026-06-04T05:50:27Z","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":"b68ad027be4db0073b79dc6e502d6bed2ab359fc54764a2cb3c5668214dd86b3","version":10},{"created_at":"2026-06-04T04:53:37Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.7→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":"4eb75004f09119c38099d6d58a9c0cec1addd8fbb01dc4cb8d2abcfa1042fbfb","version":9},{"created_at":"2026-06-04T04:53:37Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2905dd537ae804f153a72d9c17c8a45bbcda79860456cadbfef2294630281cbb","version":8}]}