{"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-k8gmcl8d","versions":[{"created_at":"2026-06-04T17:00:44Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->98.9)","saved_by":"editor","sha256":"a94cbf198427d888c58438cf415764ccf24261688fce49b372ce9dad438b65e0","version":11},{"created_at":"2026-06-04T05:55:09Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→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":"6cdc79983bfbd01d0f3b0ac02df7e490da7630a9232970a12898812065158cdc","version":10},{"created_at":"2026-06-04T04:54:57Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 64.3→93.5 (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 93.5 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"fa5301a9ea821bbec807eb97b75955f5390272a2247c294e559f171562ba3bad","version":9},{"created_at":"2026-06-04T04:54:57Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ac097667a1db25ef12303b9bfb7c9e02df8d8a04f2cf83a9f1bee88a9f3a719e","version":8}]}