{"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-h2px3txv","versions":[{"created_at":"2026-06-04T05:50:13Z","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":"9ac54c3c24d81db6814c41066aacb6e8752ef8e1b6e966cb0c883b9494399be9","version":10},{"created_at":"2026-06-04T04:58:40Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 41.8→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":"c27c244f9f9da702466fd3a9bf73428dac323c46ee7245e87dbe44f6afcaf16d","version":9},{"created_at":"2026-06-04T04:58:40Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1afecbd76201a5bef978179b03a26a00962b9ea0aa601eb59e8de7bbca4d4df6","version":8}]}