{"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-89v877zu","versions":[{"created_at":"2026-06-04T17:00:00Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":12},{"created_at":"2026-06-04T14:56:44Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (94.2->94.6)","saved_by":"editor","sha256":"c5e7667588fde4a869296812b901b03e31c8c8090d0bb6086de334cdbac304dd","version":11},{"created_at":"2026-06-04T05:53:00Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.2 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"560c52e96a03f3ca1795a2965d178e1ec73082cf17378421d8ab5e93e8061028","version":10},{"created_at":"2026-06-04T04:59:33Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 34.8→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"201fa798ac3022e57315b332da0b69755f50dfdc1328a2806f8390499648ca37","version":9},{"created_at":"2026-06-04T04:59:33Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"cd84c4965018f4f413f419479fd5244f1192cd101aa93f63569c540babb44c47","version":8}]}