{"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-2-7olqvvgw","versions":[{"created_at":"2026-06-04T17:01:15Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.6->96.8)","saved_by":"editor","sha256":"08a7a3ac66b50ad7f29f767c62590159911937073175e8a147232cfbbdf4f67d","version":11},{"created_at":"2026-06-04T05:55:39Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.6→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7269e7bd222d1dab2f48e01d7ac96d44e103093c385542629098eac81f1d679b","version":10},{"created_at":"2026-06-04T04:57:21Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 47.4→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6c0dec61ace0372d706fd97de0f485d5eee680a36e3eb974567384122db55fb9","version":9},{"created_at":"2026-06-04T04:57:21Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5c2e82f3165053638851a737f87e9899f2fcbba515828d9e69eb1c97d2bbd2a3","version":8}]}