{"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-jy5tvt8a","versions":[{"created_at":"2026-06-04T16:59:40Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.1->99.1)","saved_by":"editor","sha256":"67b96bf5c474578f523f4719f0a499b8fcf4c515c5954b7192b50e7a5bf1f496","version":11},{"created_at":"2026-06-04T05:50:42Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.5→90.1 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"8a66639f805ecdcfcd24b9976ce60b78369edd09a68c5caa5d0e047d2a74da3a","version":10},{"created_at":"2026-06-04T04:54:59Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 64.0→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":"15bcb9c7e4abc291d0330a16e2a43b0ec347effa083aa043c1d1111abab53d8d","version":9},{"created_at":"2026-06-04T04:54:59Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0a6d2fd08a050e822c39900bd3a6c8f69fd775dfe2cdf5c44fb391e1ec450528","version":8}]}