{"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-8j2kc50h","versions":[{"created_at":"2026-06-04T16:59:51Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"9e833d8474fad597504b6876dfbebe7c3ac42b1b919fc3697dd0f60905b13405","version":11},{"created_at":"2026-06-04T05:54:45Z","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":"2026-06-04T04:58:50Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 39.0→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":"2b84c418495508597746717c22eac1722c6c071903e54d91c817df73fb1cd296","version":9},{"created_at":"2026-06-04T04:58:50Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a977ea3dcfa36fa66a13284342857cd8001ec681140d8c383a81cf1a894161f7","version":8}]}