{"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-hc4q5mdh","versions":[{"created_at":"2026-06-04T05:50:16Z","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":"b7eff4b13db02c5cfa2c2618294cdc071b467699c64037e41cdd321e64b8cf4d","version":10},{"created_at":"2026-06-04T04:56:46Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 51.0→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":"a2b604e1f76b1fc05dea5d512ff9eba21ca4e5622e065f3ca04b5d9bb52f2d76","version":9},{"created_at":"2026-06-04T04:56:46Z","element_count":51,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c986e11e9b6612369795d31b7db0e564b73fb96738f9e8f5fb4463c2f6f180c0","version":8}]}