{"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-g4-3x0u4752","versions":[{"created_at":"2026-06-04T17:00:17Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.6->95.7)","saved_by":"editor","sha256":"cfce9e4e24baed14e9d1cb24230218c0fc746a62aa3a616f86dbe25a555e3555","version":6},{"created_at":"2026-06-04T05:56:08Z","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":"5f25a8f46fd45626a1539c365289863545b99f503a06214f0c316e2054a25a91","version":5},{"created_at":"2026-06-04T05:03:54Z","element_count":70,"note":"GA batch-improve pass2 2026-06-04: 総合 87.9→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":"8d4bfc318b0207e8b1e153cc7ede7cf768a5ba35d433cfb8e09948349e19bf2f","version":4},{"created_at":"2026-06-04T04:58:04Z","element_count":54,"note":"GA batch-improve 2026-06-04: 総合 45.4→87.9 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 南面サンルーム / 適応度 87.9 (美 96 環 97 楽 91))","saved_by":"editor","sha256":"794385b6abb86b1896d23a29f0526185014b38e259ac9595464eb3387a3f2ed0","version":3},{"created_at":"2026-06-04T04:58:04Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"fc0d521de855594b8904a8249effab6bd723a132df7dc932e745b5ed017b4217","version":2}]}