{"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-pmmhiflr","versions":[{"created_at":"2026-06-04T05:53:36Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.2→94.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"8a0324301d3ccb2d5edf79c45c4bb3617365833b11597ae296a994158c354e6f","version":4},{"created_at":"2026-06-04T04:55:13Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.6→94.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"946d1cd4190cd3465aefce47e81427c507db390e21f881b5cec3b7a60d787605","version":3},{"created_at":"2026-06-04T04:55:13Z","element_count":43,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b2591467104d082febda7fff4c3f2bd25b0fb8e8796ed3e0105c1618b55c1f22","version":2}]}