{"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-2-9dedtb5y","versions":[{"created_at":"2026-06-04T05:50:37Z","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":"c4305afa07de1e262db9bcaaff75ef72916e605ec4b838dc28502c01cb0a1db0","version":10},{"created_at":"2026-06-04T04:56:34Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 52.8→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":"09712652f523aa29bda9709929bf53fb8a0f3052dbfc1b89c5516c68739a7a44","version":9},{"created_at":"2026-06-04T04:56:34Z","element_count":44,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"80032048c6014cddf2105c3ed517619fb51dd4b14105fa86f0e6e777678a5b5d","version":8}]}