{"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-69wzljor","versions":[{"created_at":"2026-06-04T17:01:25Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.5->98.2)","saved_by":"editor","sha256":"f3a5ba8cbade3e53581c065af96fdd3d0932045a6e2195e189d19eb1c5fc231a","version":6},{"created_at":"2026-06-04T14:56:51Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (90.2->90.5)","saved_by":"editor","sha256":"7c6b143439efe897bc73a086258efecfd910542228cd6ca013dc5578b18a5f93","version":5},{"created_at":"2026-06-04T05:49:44Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.8→90.2 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 90.2 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"0457a451edab3312b06d846c8fa99402f66d086268bb81ffc49867a26fd03481","version":4},{"created_at":"2026-06-04T04:54:34Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.9→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"8adbd9dafdb22f713d5560b7bb51e27a05c266412ede5c45efad5329fb46b51b","version":3},{"created_at":"2026-06-04T04:54:34Z","element_count":46,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6f80d5909ebb268cbd8d52fcb7cb22ddd3666d54c638ff21334fb64fc1212fab","version":2}]}