{"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-2w3vh0wm","versions":[{"created_at":"2026-06-04T17:01:34Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":6},{"created_at":"2026-06-04T07:22:15Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.6→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":"c80f910dbbdf3a0bd88449a34d1d845d67789c2b918efa761e7f332fb2d06a98","version":5},{"created_at":"2026-06-04T05:52:23Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"f3588b424d325b7eaca2b317b55e4c37802dda7e1f4ea833210f9c91410322d5","version":4},{"created_at":"2026-06-04T04:55:49Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.1→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":"97528066a4dc1f8e9ce79e2c19a272b8a3bc0706e73b67e5b4ab728022c56e80","version":3},{"created_at":"2026-06-04T04:55:49Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"52e104e836a242839f516f3d52bd4d88965dd07826eba4750c0731980e7845da","version":2}]}