{"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-i8u79lpc","versions":[{"created_at":"2026-06-04T16:59:41Z","element_count":78,"note":"polish: batch-improve-100 2026-06-04 (95.7->99.0)","saved_by":"editor","sha256":"c5104ce3bea6813f466fe6442c6be450df453ad61bfaa2e7524f85e67de680b3","version":11},{"created_at":"2026-06-04T05:51:41Z","element_count":73,"note":"GA diverse re-design 2026-06-04: 総合 97.9→95.7 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 南面サンルーム / 適応度 95.7 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"80c720374c7f450c400c1c5f48c3effa36201efab033786f97c05f29ba1a5df5","version":10},{"created_at":"2026-06-04T04:56:56Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 49.2→97.9 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e265e850f9fe58973e4261fe0a40b00eedee9c63308f62a2feb6b1676e5d03f7","version":9},{"created_at":"2026-06-04T04:56:56Z","element_count":51,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ebca299ad35b5fbbae1a53026b0bac4ecdb3110e015da6d4e068f634857f087d","version":8}]}