{"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-ghwuv0y9","versions":[{"created_at":"2026-06-04T16:59:38Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (90.6->94.8)","saved_by":"editor","sha256":"22b73945a60842eb6cf32bad2f61862a93833f37a374c77c9b88639bcc127f35","version":11},{"created_at":"2026-06-04T05:56:12Z","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":"41a317623a90ba6419dc9e9919121a65f5d159831e5046aa0f6c9e22ec9a317a","version":10},{"created_at":"2026-06-04T04:58:17Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 44.9→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":"f8e5f2484b4da4e80cb3b29f90b059267bf97447a5f0cb7370246c85403fd47d","version":9},{"created_at":"2026-06-04T04:58:17Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bfeb3dea9291644fe444a7cb769abc83463d1cb5b3f9112cfea66b76529f86d1","version":8}]}