{"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-3r46uv4f","versions":[{"created_at":"2026-06-04T05:50:16Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→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":"b91992347ed2d16e0537c7b111ee8ed2cf345f196e6c39649b4758d3ee9f8c02","version":11},{"created_at":"2026-06-04T05:03:51Z","element_count":98,"note":"GA batch-improve pass2 2026-06-04: 総合 89.8→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":"ea725b78a202604511a3426a9862dc57eae5af90510acf81420053f59f7a1106","version":10},{"created_at":"2026-06-04T04:53:42Z","element_count":97,"note":"GA batch-improve 2026-06-04: 総合 69.1→89.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 / 適応度 89.8 (美 88 環 100 楽 80))","saved_by":"editor","sha256":"336dc19b71c92f00c0015f1a6536477b78e22c4ac55960fb2e1e52e0e927aecc","version":9},{"created_at":"2026-06-04T04:53:42Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2c6a0fd642ddfd159563dffe78863220613104ae8d3334a50162aedde6a6d5fe","version":8}]}