{"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-zp1faqm7","versions":[{"created_at":"2026-06-04T17:00:24Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"5adc6236fb845d682ee58c534c3dd863adbc87f6182e1e3d1bfc9b2ec9f716e1","version":11},{"created_at":"2026-06-04T05:54:48Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→92.4 (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 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"1aa35c4e703ed8eecbccfa31d5bc68c13ca925fa569940bceba4510bc6da430c","version":10},{"created_at":"2026-06-04T04:58:58Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 38.8→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":"7d640ecbe39911cb21a096b701c498d2c90ae06dd931d358bd7342dceaebd016","version":9},{"created_at":"2026-06-04T04:58:58Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e6a00e917752254fca23d34625b00194efdf92244ffd420af1399b33fa9f844d","version":8}]}