{"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-1s6v0lbi","versions":[{"created_at":"2026-06-04T05:50:25Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"75ff0efea6eeefebb1a0b5ca7f6a80621a77bf45908cd69739b955dc1bc43690","version":10},{"created_at":"2026-06-04T04:57:14Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 47.8→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d5d3926004127e0572e251f06e2cf522c0d46d47d6f70771bdb3f10971b75a7b","version":9},{"created_at":"2026-06-04T04:57:14Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0486628efbc228ad1d710ec8ff58fa34a4146055755472d84d4ee250e5c5b557","version":8}]}