{"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-2po0b7gt","versions":[{"created_at":"2026-06-04T16:59:42Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"2f728e60a83f4a1e47ce51b434545d39325093471ff2a55103afd5bc8818d7c2","version":11},{"created_at":"2026-06-04T05:54:47Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b78753ab899b05b9ab710699b7972f3b6c862d8237644e02e580bd94d1a99b48","version":10},{"created_at":"2026-06-04T04:56:10Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 57.2→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"a8385344077e491286133b07f1c19bc250a45c1259b010a170f7707cb7e097f3","version":9},{"created_at":"2026-06-04T04:56:10Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"99c7074db341314fdd899e3ebba551113f58160e2b6ce9cd8f199315dbd7c0d1","version":8}]}