{"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-eps1usxt","versions":[{"created_at":"2026-06-04T17:01:13Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.4)","saved_by":"editor","sha256":"654415794eb89f42daa3fb62e5cc1d618b3526b826bb155ddc195f676b140ed6","version":11},{"created_at":"2026-06-04T05:53:06Z","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":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":10},{"created_at":"2026-06-04T04:56:17Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 56.4→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":"d7602c8c421453603b81986afdfacf14bb1de71c889ae149ab4deeb053a05819","version":9},{"created_at":"2026-06-04T04:56:17Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8e244fca4e6da2335ee2bf4e703be853c7b640a6a9aa32ba61cdeaa79c853197","version":8}]}