{"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-2-2vul7drk","versions":[{"created_at":"2026-06-04T05:51:48Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.6→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"65f4f3867c05aef9ea508bc15ffeb283be0dc08a827e395fc7037838af13abd1","version":10},{"created_at":"2026-06-04T04:54:07Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 67.4→97.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.6 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"43d211ad396e410aa571d191db9701c42be9f6b18122f5824f519e677070f058","version":9},{"created_at":"2026-06-04T04:54:07Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7b62fb1c046ca04759c46dab3167a87d368b8a67abb180f256f77be78b629b2e","version":8}]}