{"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-wnn07wz1","versions":[{"created_at":"2026-06-04T07:22:21Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0206066548648ebbc76e051f6da34e49e9bf64d4063cfd418dc6971ec501118b","version":11},{"created_at":"2026-06-04T05:53:14Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"9611e2703cd8e254693189cbbd05edc5bac3894ff0992743baefff21e740759f","version":10},{"created_at":"2026-06-04T04:53:45Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 69.0→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"82ea9568ca24878afe5f42e1b0e1f822c4b61bd12b32c82a41d51989cd04c98e","version":9},{"created_at":"2026-06-04T04:53:45Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f4c6453a071d0639a428d4a79538ee5f16b896de8c0f9ff5f69977299313d942","version":8}]}