{"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-f9sgyktg","versions":[{"created_at":"2026-06-04T17:01:28Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (93.5->93.6)","saved_by":"editor","sha256":"572d7c69ec3a7c03c797e5354654c646dd9217c339d84ac70a57bf94b7379d4b","version":5},{"created_at":"2026-06-04T05:55:10Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"1990c2328133f153d67bcb5995eaba6da35406fb1c497a25297fbfd7397eb274","version":4},{"created_at":"2026-06-04T04:55:22Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.0→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c39c2064f0e6edc1b2f3035c2406a0be811ef16b41283be63701b32d39c784f6","version":3},{"created_at":"2026-06-04T04:55:21Z","element_count":28,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bed5ecb50735dd4ebb8e051d188aee89d484f1b6d8edc70140503c4aafbed579","version":2}]}