{"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-pshaisvz","versions":[{"created_at":"2026-06-04T05:50:53Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.4→99.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"1c0c65b99669dc8476069b2a3dde51e55b2eb81912863da1459aa0d39bcbe3a7","version":10},{"created_at":"2026-06-04T04:54:25Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 66.4→99.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"3f4530e9d424faaa4890ae531c016ab18fda791692c6283697b1458551f62466","version":9},{"created_at":"2026-06-04T04:54:25Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"22b1e61f378ae2ea89ad57c94cd19ba46d343ef8179a5a2c255e9141225c919a","version":8}]}