{"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-ms2jw6fu","versions":[{"created_at":"2026-06-04T14:56:49Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (93.2->94.0)","saved_by":"editor","sha256":"a0c563888607b51adb982443bb17d6dfdb55243d430b27a0f35f34a2f4b2ba98","version":11},{"created_at":"2026-06-04T05:55:26Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 93.2→93.2 (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 93.2 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"c1a66ac0fc90acc60c96bc4e176f00494bd165e601ecaa157a36d045081e4c3c","version":10},{"created_at":"2026-06-04T04:53:28Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 70.1→93.2 (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 93.2 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"3af1e8544a8c7adbf4b904f70404b5e47ecace7c5184ae1e9f5be7dc17944bf0","version":9},{"created_at":"2026-06-04T04:53:28Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5f58e539502444bcfea187e963e2999615175a3213826a5679ed9a22cd1731e4","version":8}]}