{"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-5i037e5x","versions":[{"created_at":"2026-06-04T05:51:02Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.3→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"aae64b7a706dac5211366a140c25b8ab842224ddad3240a3416b79f51d92e820","version":10},{"created_at":"2026-06-04T04:53:07Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.8→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"009ead84e6a98eacb16163385a60c41d3ac6ccd0c5617fc284b6da2c3597fb13","version":9},{"created_at":"2026-06-04T04:53:07Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f15c19f610e62bdd0e55245d0044fed31051a7fa510cded39257575e9b274bc4","version":8}]}