{"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-iwq185cq","versions":[{"created_at":"2026-06-04T17:01:22Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.1->97.8)","saved_by":"editor","sha256":"bd605cea2089038228b14938e4dc06dc1b0bcac42ccf76bf99325f4d03c01803","version":11},{"created_at":"2026-06-04T05:55:29Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.1→93.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ed13c27a7afe80d740aa471ededade9777210b64b9ddea0295a1a9f34170cccb","version":10},{"created_at":"2026-06-04T04:57:32Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 46.8→93.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bc3dd4bdbe782f227f114a79fe2d5484c166cfe6b37a5a845bb577dd31df6cfe","version":9},{"created_at":"2026-06-04T04:57:32Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6a7cdefc94202183ec60d127c7da20a4d7c8dc67f54c739aadd1e28828c44fa0","version":8}]}