{"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-zwcz0n0i","versions":[{"created_at":"2026-06-04T05:51:33Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.1→99.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.6 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"09e0010066002cca89c0f4859def6c801873037e94b16bb2e66c9451c64ac76d","version":10},{"created_at":"2026-06-04T04:53:02Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 72.6→98.1 (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 98.1 (美 95 環 100 楽 100))","saved_by":"editor","sha256":"f9ef0ad84bbc2c23d763b44b4641f7aa34b3238e3caa87cb6ef818ebee30bcbf","version":9},{"created_at":"2026-06-04T04:53:02Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"39ea2c555948c07dc32c206fdd5461b48b1502ee28c6a73255572c8c673f9ef5","version":8}]}