{"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-xdfki7vw","versions":[{"created_at":"2026-06-04T06:04:28Z","element_count":99,"note":"GA diverse final 2026-06-04: 総合 89.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"d8fd587a6e52b732e19e0dcae19aafc74efdcd4d30d36bfd54395799bdc09cce","version":11},{"created_at":"2026-06-04T05:51:10Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.0→89.0 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 89.0 (美 94 環 95 楽 91))","saved_by":"editor","sha256":"d15433be35875fada6f30750ef95799bd8a9fd75757343dcc4c86ec139135417","version":10},{"created_at":"2026-06-04T04:57:59Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.5→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"8125cfaa5cb618f2e44e7f803f2f8d7e3867770535c697af7f0097e8e4f5b891","version":9},{"created_at":"2026-06-04T04:57:59Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d96c0e78bb973aeadab5ee39133c400a77bf126e4fafc4b74b6b8e3f829de32b","version":8}]}