{"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-2-s6rivom2","versions":[{"created_at":"2026-06-04T17:01:10Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.3->95.5)","saved_by":"editor","sha256":"d52087524d18ccfdd9e4a600d78f175e2d8e99a03056658375ad9c82e9652b9a","version":11},{"created_at":"2026-06-04T05:56:02Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 91.3→91.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.3 (美 100 環 93 楽 100))","saved_by":"editor","sha256":"a3f64371e7ece4b1f2549fb5cd3b2f8b4249608d30a3689618b911217ca9f4dc","version":10},{"created_at":"2026-06-04T04:58:03Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 45.5→91.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.3 (美 100 環 93 楽 100))","saved_by":"editor","sha256":"31d49b9ce1d05d384d5eeb72fbc199c5c68702792c5b37fc8ee5e6721ef7d284","version":9},{"created_at":"2026-06-04T04:58:03Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c86006e70dfbbb659e01013b2c269b28abd0d059e1d7af1730c01d557bce379e","version":8}]}