{"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-c0nxs1yx","versions":[{"created_at":"2026-06-04T17:01:16Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.6->95.9)","saved_by":"editor","sha256":"afb6f4661822ae95f626d2a2ea45178c942f5021eba393ccf139a407f73fedee","version":11},{"created_at":"2026-06-04T05:56:16Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 90.3→91.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.6 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"a950b793f8f0ae891f7feaf03665eea6caeca790ff83f1999e7478a53e2a8971","version":10},{"created_at":"2026-06-04T04:57:53Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 45.8→90.3 (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 90.3 (美 92 環 95 楽 100))","saved_by":"editor","sha256":"0b14a0ddf224149e93a679a56768567b87a0e5323ec0db4a26f6664f36b5845e","version":9},{"created_at":"2026-06-04T04:57:53Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1c7d2732d97d6f95c845967b2b0adcac0827b3db1adabbdda9e514b00af1c2d0","version":8}]}