{"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-g4-qjiodlxz","versions":[{"created_at":"2026-06-04T05:50:09Z","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":"b5cb23188f9601cac85b6be93849e100e4daca2a70ad097aacc501d5a388a4c8","version":4},{"created_at":"2026-06-04T04:56:11Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 57.1→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":"adb678830fdd4bca86464701a44b47c0a6a390b5a10fc008b3341fd442bd449f","version":3},{"created_at":"2026-06-04T04:56:11Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b73bd033d2dd0ebafb1a13f51bc85d0b1a01e7cb47aa6bf1becd0b10f8ba4910","version":2}]}