{"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-aj1keu8j","versions":[{"created_at":"2026-06-04T16:59:45Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.2->98.4)","saved_by":"editor","sha256":"f13c4e3af48b9f400b53e007024711004817f4c06f8019a29456faf7df247291","version":5},{"created_at":"2026-06-04T05:55:24Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.2→93.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d9a8134f4f3551af88bffd59117afe92444b9d028948edda87a4b7156aea3d85","version":4},{"created_at":"2026-06-04T04:53:16Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 71.1→93.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"dd75016db5bbf44a7a991fc7b8e8865ec9eb228bb4e7297119de3d8c68ca98c5","version":3},{"created_at":"2026-06-04T04:53:16Z","element_count":64,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3e45d3f2e66990ecd46b82fbbf9177f1c98e56f5a5d173d22596a4df1728d90b","version":2}]}