{"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-xw93fr85","versions":[{"created_at":"2026-06-04T17:00:55Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (90.6->94.8)","saved_by":"editor","sha256":"b0306b4f126a272e04cc68ee24e9c906acd85d58bdbe321a41b96bee8821e427","version":12},{"created_at":"2026-06-04T05:56:09Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 90.6→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"8b85c5847ae4fa2066c46ed504b5b7f64fadc599a07a73a3a76fbf7f5c959cfe","version":11},{"created_at":"2026-06-04T05:03:50Z","element_count":70,"note":"GA batch-improve pass2 2026-06-04: 総合 89.9→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"98adc907ecf451aedc232e59a2fd6567e3fa85957ddfb9d0bb4e528f6dc86d02","version":10},{"created_at":"2026-06-04T04:58:43Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 41.4→89.9 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 89.9 (美 94 環 97 楽 100))","saved_by":"editor","sha256":"796c4f288b1af4bf58089d2757bad7d0ede5c4fb7782fb8aeb32f763cbc6dc93","version":9},{"created_at":"2026-06-04T04:58:42Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4e224887379cf2c664b63404ad66ddbd580ccd5722fc95aef13438ef8ef4fa14","version":8}]}