{"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-6q35hfsw","versions":[{"created_at":"2026-06-04T17:01:05Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"e6489de16ce90f4eec2ddd2728c02a7625d7002850d25d14032cd4b36dbbcd94","version":11},{"created_at":"2026-06-04T05:52:47Z","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":"f97e34bc5b0db354c4d51c3397e6fce50befcafac8b05f8ee9074f71d09fa6a4","version":10},{"created_at":"2026-06-04T04:59:30Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 35.4→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":"767822d5149f484a524810f19cdee26a53a790c8dabcff6c43c61edf151fb1df","version":9},{"created_at":"2026-06-04T04:59:30Z","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}]}