{"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-ofqnwxhz","versions":[{"created_at":"2026-06-04T05:53:05Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"43e760f3cabf230f221312d13fc7670b5b3c07a5bbd13c6c0290ce561eeb8cc8","version":10},{"created_at":"2026-06-04T04:57:04Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 48.6→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":"2ee40222ca0382b4398cca739ee1baaacb659e69c122c78bf1598743755bfda6","version":9},{"created_at":"2026-06-04T04:57:04Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"abccacf82463751e9f3bb0d0445ffcd3b8b8b042f6a82d639293488611713021","version":8}]}