{"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-9m5ftwk7","versions":[{"created_at":"2026-06-04T17:00:37Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.7->98.9)","saved_by":"editor","sha256":"06086fc348ad0448380d63bd2a7efb127a92c7a6c1e15158bded5a593dc93df1","version":11},{"created_at":"2026-06-04T05:55:46Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.5→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4bb171a989976b104d2868d65e91feecc9b92c86b901b23380dc187e7e93bebb","version":10},{"created_at":"2026-06-04T04:58:54Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 38.9→92.5 (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 92.5 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"e7057b7853e47cfb530712b048c83abbf031d4e338f60195438c7da28e5b0c6c","version":9},{"created_at":"2026-06-04T04:58:54Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2a95fce66c88ecb387290294519a63c971ac598d439d33c5ad7262bed3530647","version":8}]}