{"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-g2-zevkdv6p","versions":[{"created_at":"2026-06-04T17:00:50Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"a1c064c9cd4c2b9bcabff4877d85a55de0d8fabdb808c714eb5e72c0aafd5c01","version":5},{"created_at":"2026-06-04T05:52:30Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"c8f649aa11326936fb49b2c9085ca0066659eadc865e44c00de3ad43855bc49a","version":4},{"created_at":"2026-06-04T04:55:21Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.1→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":"0ec353a00d9231b61c66a8984852da88177a5f3b3ab43fa4905ef75802eb4ab2","version":3},{"created_at":"2026-06-04T04:55:21Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"35bb94f525362c7d374c6f3154db5a6dfefaedc2dc296ca5f3f3abd25127adea","version":2}]}