{"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-90qryt6v","versions":[{"created_at":"2026-06-04T17:00:37Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.7->98.9)","saved_by":"editor","sha256":"97822b6b6ddcbd9ea1ed6fc5114b7d7b2a1dab7a400d8ef02709a25c39742580","version":11},{"created_at":"2026-06-04T05:54:02Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.7→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7c3f86e6d3cc1122d337df463d84d44e346403780acb3f41759a8c27cf6c21fb","version":10},{"created_at":"2026-06-04T04:59:21Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 36.9→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b50c087f0cd47e9024a1126a668b5c9eb83b07b0fa2e5f46583d3a2b7e47df75","version":9},{"created_at":"2026-06-04T04:59:21Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"020bd2d5f6b137a337d3f3ee65c9d93ae81a994010c062872f085265d21d5e4e","version":8}]}