{"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-y0ywv1it","versions":[{"created_at":"2026-06-04T17:00:49Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (90.4->98.3)","saved_by":"editor","sha256":"860db304df894eed0d72fe257a3a60fe39e3268bd418dba113723255f1021d82","version":11},{"created_at":"2026-06-04T05:50:45Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.5→90.4 (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 90.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"dbeb7b6409f7934d5e37f0c8d1cf4e0e566bafb28073dd281ce0ff3068a1ec54","version":10},{"created_at":"2026-06-04T04:56:07Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 57.5→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":"01c3d14c7f400a74dedbbd5d8309e0926e25dee13bf8a0a77df680d1fe769e2c","version":9},{"created_at":"2026-06-04T04:56:07Z","element_count":28,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"88b0148a9ee0345a7e4ad047a9c75d3f8ad3ea9e592c2fdbf587eacd72992656","version":8}]}