{"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-k9j3bfsl","versions":[{"created_at":"2026-06-04T17:01:15Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.6->98.1)","saved_by":"editor","sha256":"cadfeee6134b34ca962a572b0862c14530f81595ba522d69242bbd29a69e82e5","version":11},{"created_at":"2026-06-04T05:55:44Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.6→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e011982a3d274c07c03631354fe0edf90dcaee21e0412d054c71d00357eb7731","version":10},{"created_at":"2026-06-04T04:52:55Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 73.5→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"fbadc79cc34fe30db33cb1562d9d7696504b3a0b51c499e3a5fb4e4d6fb0c51d","version":9},{"created_at":"2026-06-04T04:52:55Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f75171a2e854c0487a87d5c29ba86b5667d967761de09fd2d71d67ccb92292eb","version":8}]}