{"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-2-8o7lr18f","versions":[{"created_at":"2026-06-04T17:00:16Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.3->95.5)","saved_by":"editor","sha256":"d52087524d18ccfdd9e4a600d78f175e2d8e99a03056658375ad9c82e9652b9a","version":12},{"created_at":"2026-06-04T06:04:12Z","element_count":70,"note":"GA diverse final 2026-06-04: 総合 89.9→91.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.3 (美 100 環 93 楽 100))","saved_by":"editor","sha256":"f18af746b5525c623dea017ac89f6735723c2d6e9f47b5e4a4753d0cfcb33465","version":11},{"created_at":"2026-06-04T05:56:01Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 91.3→89.9 (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 89.9 (美 92 環 93 楽 100))","saved_by":"editor","sha256":"406488bfab0508a76ebf287b74c9017f86742176ad60356b92d908d0479fe49d","version":10},{"created_at":"2026-06-04T04:54:37Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 65.8→91.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.3 (美 100 環 93 楽 100))","saved_by":"editor","sha256":"337c1c24a8f3ace47e68b008a35ae04e531c7f9ffd1a3ea66a40e399431efe00","version":9},{"created_at":"2026-06-04T04:54:36Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7163233c5ab7fd70320b883a0732d997c26c1b9412155f5ff1a738afc52aa426","version":8}]}