{"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-wl7id5in","versions":[{"created_at":"2026-06-04T16:59:57Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (90.9->98.9)","saved_by":"editor","sha256":"f2974c5eafd2f487b9ef3b2dd53991177aa13d9711416b7480f1bc164baf53e7","version":11},{"created_at":"2026-06-04T05:49:38Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.9→90.9 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 90.9 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"3a2a3a089048fe22039326b32de77f90a16ee976597aed982c5a6891817a9097","version":10},{"created_at":"2026-06-04T04:55:21Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 62.1→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e8b62a3f13ce701dd9562cbebcc8658015c3c2f6b34659f0fea33ccfaa9b495d","version":9},{"created_at":"2026-06-04T04:55:21Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"00e5df431a50beebc38a0e5ce7da9af4e40ba2f04ae1bed76f36b1f045340314","version":8}]}