{"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-g4-sdfd75mi","versions":[{"created_at":"2026-06-04T05:50:10Z","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":"fa2f5cfba79b22768befbc37114571e0a2ae7bdb8bfc9cc82d82127723f09754","version":4},{"created_at":"2026-06-04T04:57:30Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.9→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":"3dcff6a0932226fb81fe6af739170e212d070661c239dc25451d6dba53e7339b","version":3},{"created_at":"2026-06-04T04:57:30Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"72061dda180019822526b8a7830413c0e36dd122b2a130fffcf02bebf297a31f","version":2}]}