{"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-kx8a8cqf","versions":[{"created_at":"2026-06-04T05:51:30Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.3→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"cf12b98d014728c82dc725d369d0e1420545a086b8716dcdc0a06078827f30a6","version":10},{"created_at":"2026-06-04T04:58:40Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 41.7→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"c28b120fd0da90f1dcc932d24eced7122f76af22bea04331dc126e9312de4cf9","version":9},{"created_at":"2026-06-04T04:58:40Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c7c1836230f35424e42effcc6117ff3a64417730951f75e78ebf191edb4b74a8","version":8}]}