{"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-au2haz3j","versions":[{"created_at":"2026-06-04T17:00:55Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.7->98.5)","saved_by":"editor","sha256":"27fb3474e6c511977b32dae4e3850254a3cb6cb0a9da7fee999bd901d39f4f8d","version":12},{"created_at":"2026-06-04T14:56:52Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (90.1->90.7)","saved_by":"editor","sha256":"457b860758692767859e3b7df4a309c27eb8ad82c525b38792d71cbda347d1ab","version":11},{"created_at":"2026-06-04T05:49:58Z","element_count":54,"note":"GA diverse re-design 2026-06-04: 総合 99.6→90.1 (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 90.1 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"997a9d2c845e5ae23be52036f3be1ff6ade0e078777810db7f1591fbe7459736","version":10},{"created_at":"2026-06-04T04:54:11Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 67.2→99.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.6 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"22ebf16ce627812bf93316c060a3711280090fa4cf1845d093bab272a65b603f","version":9},{"created_at":"2026-06-04T04:54:11Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"47f44e6f6973d1c834a88ae7aba36766e4f4628afc92e723bbeba2eba40d44b2","version":8}]}