{"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-7adtwbk2","versions":[{"created_at":"2026-06-04T05:50:40Z","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":"1eecfa23ffdf2858e3619e88d4bfa6885a780b8ec1930bf7f043222a405f7983","version":10},{"created_at":"2026-06-04T04:55:37Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 60.6→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":"aaed58ca01ea280bb86632e001e277154ec00829f4d939e1bb05db2600019211","version":9},{"created_at":"2026-06-04T04:55:37Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a8f2fc40c89dcd9ed0036c48887275613bc70c44732a8d71960db8dfa557fbc6","version":8}]}