{"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-cgrffs2x","versions":[{"created_at":"2026-06-04T16:59:43Z","element_count":61,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.9)","saved_by":"editor","sha256":"b4b5cc1c9537352e17ea7e796936fa45d3a9888329af3f5e3d1759f276204890","version":11},{"created_at":"2026-06-04T05:54:57Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b054168001b4876b81c350cde4d780dbcbe54c9168811fcc5e9c672c0eb961b9","version":10},{"created_at":"2026-06-04T04:58:54Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 38.9→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"e3e7602343e90477fb302952aaaafac8c5d048eebec2f86d9b30eb5afeabd2aa","version":9},{"created_at":"2026-06-04T04:58:54Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e66b5a03930a03eee7fb8f1522d4c2e39c2f0a629e06e74b583c347c450cdb79","version":8}]}