{"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-tjl94icr","versions":[{"created_at":"2026-06-04T05:49:54Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.7→99.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"813af186418087e7802092dbda251c29e2f179b2680f61c5dd7ae7a9806066e9","version":10},{"created_at":"2026-06-04T04:54:55Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 64.5→99.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"70e44c09417d4a401de791e08bd49a3492e95a822f8d5e3ecc4c7d55cadc704f","version":9},{"created_at":"2026-06-04T04:54:55Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"dbcb8d5134ebeed8bf2efb53a3f90a6330816de9e790ffeb8e6201a8aae2301c","version":8}]}