{"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-5wr7h0wu","versions":[{"created_at":"2026-06-04T05:52:55Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"c8f649aa11326936fb49b2c9085ca0066659eadc865e44c00de3ad43855bc49a","version":10},{"created_at":"2026-06-04T04:58:38Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 42.3→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":"18b391d85f1562155c57237aa2b6b2fa44108817ef54caa7ba365d640a5b044e","version":9},{"created_at":"2026-06-04T04:58:38Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"05d7ac1ee73c4a5da96e88f8b16dc26d7be7ae91950748a68060c1c32331ae1c","version":8}]}