{"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-6v4ndegt","versions":[{"created_at":"2026-06-04T07:22:06Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.6→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":"5ea4b812afee9f2aebe4c43e28ba8eaf7e2a0a766614f3c58ad256e749c06e81","version":11},{"created_at":"2026-06-04T05:50:36Z","element_count":97,"note":"GA diverse re-design 2026-06-04: 総合 99.5→97.6 (中庭ロの字・吹抜 ピアノ室 PV 天窓 / 適応度 97.6 (美 100 環 90 楽 100))","saved_by":"editor","sha256":"23f29b951f351109428b2c8d69c3d5bda4262cc79b9e47b9a48758b98b113a6e","version":10},{"created_at":"2026-06-04T04:53:35Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.9→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":"a334b2a664f299f13d7ef4262b6f3a4b635cc6803188106ed91cd630241f1516","version":9},{"created_at":"2026-06-04T04:53:34Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0e3b6989e701c54b94c695138b57b9c67dd70e91f063c86e33fb8cfca5dd2fd7","version":8}]}