{"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-5s9mzhlv","versions":[{"created_at":"2026-06-04T07:22:10Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.0→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"5359102f475110c0ac5a9883b3647f883332e41bcbcf6426b8accabebcc322ea","version":11},{"created_at":"2026-06-04T05:50:36Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 99.5→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"539291c8cccddd361b02789b8cc5c02273ca1a6a721b6b3ac3ff5ee5e01a55e2","version":10},{"created_at":"2026-06-04T04:59:19Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 37.1→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c759a7742e25b1da92f912a147ec260ee12bf4399dda71808cc88ee94978b4f7","version":9},{"created_at":"2026-06-04T04:59:19Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"fa1ae1f630c36314a2526f7e31f5561c16a90369a3499def213c05d99b8fb3ce","version":8}]}