{"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-oxfcg7a3","versions":[{"created_at":"2026-06-04T05:50:29Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→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":"21a182b4d3ff48647b4f6cf24c84ff6e78bc8f013a9eba835138d01083084945","version":10},{"created_at":"2026-06-04T04:58:21Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 44.5→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":"a6ef46b7976bcfe9489ae18ff9fd19514480a86860c75c52dcf62d1edea28091","version":9},{"created_at":"2026-06-04T04:58:21Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e7ba168477311f710b1565f57b47d5ea5f1c555b703129c3488e3a4a78bfa344","version":8}]}