{"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-2-1u2nslc8","versions":[{"created_at":"2026-06-04T17:00:21Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (94.6->100.0)","saved_by":"editor","sha256":"387291bec1e62b476bee6c7b8394bd257061f0c61b98bada4a00423f0baabb40","version":11},{"created_at":"2026-06-04T05:53:16Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":10},{"created_at":"2026-06-04T04:59:27Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 35.9→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"113ae7fd36893f52e32a4eeba43e91c8e9b0faa4db66eafbdf9281aefb1f29a7","version":9},{"created_at":"2026-06-04T04:59:27Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9354c0853f0187bf916dee8a64d50edb766bfaabf38fa9f7d2da279e7c45ac2c","version":8}]}