{"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-g0-z4tl8gxz","versions":[{"created_at":"2026-06-04T05:49:58Z","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":"e6e1479a7a58349eb9dd22f3b3ba0eaa1608dc903bd32dbfce01920be2023b40","version":4},{"created_at":"2026-06-04T04:57:50Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 45.9→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":"0b0c9404b5043a12cd4d91a790e1ff628d3bddcd20c325782739f136b6971b82","version":3},{"created_at":"2026-06-04T04:57:50Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b94383c19e75be4d4838568f0e4a2e95db4999efd3c716b1d1b44eca303b891e","version":2}]}