{"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-ghp57i3u","versions":[{"created_at":"2026-06-04T16:59:56Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.5->99.7)","saved_by":"editor","sha256":"94d32190fc08998298fac0b375baef9d893b6b1da403bc680bea844ddc8ec11b","version":11},{"created_at":"2026-06-04T05:53:55Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.7→91.5 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 91.5 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"75b5e06f210b83f1f83f374bb1375501b03397b1885be285d345925afaa64a58","version":10},{"created_at":"2026-06-04T04:59:21Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 36.9→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cc9ff0085da86cddbfc9dd24d8f3423e46b1704ea821a60e2da0479eb237cce7","version":9},{"created_at":"2026-06-04T04:59:21Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5eb2d05b792c72f72c9fd699b51d8885e853f802f253ca2faf5d34cfe8469a06","version":8}]}