{"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-p7m20vae","versions":[{"created_at":"2026-06-04T17:00:34Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.6->95.7)","saved_by":"editor","sha256":"2e9f0a7e425f161aa34ab9085e769f8dc22405d2ca61e486872db4bbfa941311","version":11},{"created_at":"2026-06-04T05:56:13Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 90.6→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"411fdc701863e30020d893956fce16abb3f01ad38ab16c9e23cef1d5fdc392c3","version":10},{"created_at":"2026-06-04T04:59:38Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 21.7→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"98d04e119f7fd3f8e838e750ed89fdee206e7696b8d6ad6cf7d98197c7bf3662","version":9},{"created_at":"2026-06-04T04:59:38Z","element_count":66,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"53f3dbfeedb7033aed796ec071aac3f24bbfe416054090d0eb30fd25296d338e","version":8}]}