{"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-sn0hqd05","versions":[{"created_at":"2026-06-04T05:49:25Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 100.0→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"1e3c7070c5f067c8c6e45d811a0f502cd06a4187a2f62e1ca9bd15f0ab5343b4","version":10},{"created_at":"2026-06-04T04:57:36Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.5→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"feb797deb99217816948bdf262360c70ad5239eb826cab97c8f47eb36021b41b","version":9},{"created_at":"2026-06-04T04:57:36Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8fc53f0ff6790aee74430e04c39ed693bcca4b6667fff719da780555cdb1620e","version":8}]}