{"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-bqyel5v0","versions":[{"created_at":"2026-06-04T17:00:41Z","element_count":76,"note":"polish: batch-improve-100 2026-06-04 (90.2->94.3)","saved_by":"editor","sha256":"84b5bad963550b2a151675865b4fe4aff5d64f9891cf8496145a1e2fd32d35a9","version":11},{"created_at":"2026-06-04T05:56:17Z","element_count":69,"note":"GA diverse re-design 2026-06-04: 総合 90.2→90.2 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 90.2 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"4d0401fe637a419d0046c46f127f48ef2b991f9006008c51e8649e360655e750","version":10},{"created_at":"2026-06-04T04:59:39Z","element_count":69,"note":"GA batch-improve 2026-06-04: 総合 21.5→90.2 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 90.2 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"e137bd6098b1f172bae4696b3d55328d878ec647b3fdcb8ddb08c417633221de","version":9},{"created_at":"2026-06-04T04:59:39Z","element_count":66,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"405d0d76c9a1fda058210a1e98662f8369687638af907be523adea909efb2c0e","version":8}]}