{"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-0pxwvtq2","versions":[{"created_at":"2026-06-04T17:01:42Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (90.1->98.9)","saved_by":"editor","sha256":"c0538e526c7b453640b38000c4a1380b3d010f2f2666c5902ade1a689af6afd5","version":11},{"created_at":"2026-06-04T05:50:43Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.5→90.1 (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 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"b4c2569389e9b59973fe73ae8c5337f5a851f2eb9c69186271eb9ec9161594ad","version":10},{"created_at":"2026-06-04T04:55:01Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 63.8→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":"f3abfc5ae3e968c29d839466dafc97cc44256e75c004965adfeb6cd664c76895","version":9},{"created_at":"2026-06-04T04:55:01Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d8bec3241c3dc5c5eb1a3181ddb29e105bb50688f106d639ac874a00c54aea27","version":8}]}