{"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-g5-fyb6naf0","versions":[{"created_at":"2026-06-04T17:01:12Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.1)","saved_by":"editor","sha256":"e7d388323c722fed68dc211966b872a47378757606370ffb4902be5aca5da925","version":5},{"created_at":"2026-06-04T05:52:26Z","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":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":4},{"created_at":"2026-06-04T04:58:38Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 42.1→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":"ff8b9d4f47fc2d75f21bab57a3b1ebe62f2b85aa69ff33eb88223aaa7aef977d","version":3},{"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":"a5eb73dd35c2a106864cdc38520d2c10cbc894579cb2cf2a7f7b8acc9fcc1d99","version":2}]}