{"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-un21id1q","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":"4a8a07cf532601e660bb05fe3460e9126a5a360b9c382cdc91d3a548c8a07a2c","version":10},{"created_at":"2026-06-04T04:54:04Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 67.6→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":"b715efdbbd881b995917532b79b6c06442592713032a142bc29cde23e104617b","version":9},{"created_at":"2026-06-04T04:54:04Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"70cee51dd0869d19a0b215945638cb413a589918f6c6aef5f8b0ee65b113ce31","version":8}]}