{"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-47odz0e2","versions":[{"created_at":"2026-06-04T17:00:22Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.3->98.1)","saved_by":"editor","sha256":"d2f435900cedce7e3af9287210f50161cbdff9d57b8854cf1d7f57672d5b31f0","version":5},{"created_at":"2026-06-04T05:56:15Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 90.3→93.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"aae1d625fc4712402967ed9330ecdd2424088ebaa64eb9148a5f9ea2423017d7","version":4},{"created_at":"2026-06-04T04:57:23Z","element_count":54,"note":"GA batch-improve 2026-06-04: 総合 47.1→90.3 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 南面サンルーム / 適応度 90.3 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"441c5ff125f6f17eff921ebc92cf6d59297d4a5a6a00b5435031474e9a8f34d1","version":3},{"created_at":"2026-06-04T04:57:23Z","element_count":75,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"87399644438b4062c7f29c38b81fe95bd52e8eedff0321b4d4be006619553dd1","version":2}]}