{"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-dbn5p5tg","versions":[{"created_at":"2026-06-04T17:01:07Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.7->98.7)","saved_by":"editor","sha256":"f254ed344624c676ab4ce0d55439dd1a9e2d665174cc51ce43cc40a43a2b154f","version":11},{"created_at":"2026-06-04T05:53:53Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.7→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"21283cf707f68c6e39b260dabfedb67d0673d8be97d0181c3f3b9a4519b7f342","version":10},{"created_at":"2026-06-04T04:57:18Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 47.5→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"3f6cb287c5fb2b9504b98f0c1c8701329f30cf4e41d60595d22e54ad85463760","version":9},{"created_at":"2026-06-04T04:57:18Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"74a47b2c226745c3a5ec74779b6a8e1f944c7c08f4f6787807cf96ce4d13de15","version":8}]}