{"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-3g97rr29","versions":[{"created_at":"2026-06-04T05:51:32Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.2→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"5422db275677a754492c8ba142f24b7e1d3f033fa3287163d895dbb051c5b3c4","version":10},{"created_at":"2026-06-04T04:55:07Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 63.0→98.2 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 98.2 (美 95 環 100 楽 100))","saved_by":"editor","sha256":"8e211164e8acf0762551965abf92a8189e7dc1c4d76f1e736e05bb789c39f041","version":9},{"created_at":"2026-06-04T04:55:07Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4ace22f6ef207eed71e308ff7d8a63cc3e5baf41b680ac9f87113b74e19a0257","version":8}]}