{"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-12a3ko77","versions":[{"created_at":"2026-06-04T17:01:14Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.1->99.2)","saved_by":"editor","sha256":"c156fc533360a1ab8aefd780378e132ff0e8b55785e301693e654327ee169f17","version":11},{"created_at":"2026-06-04T05:53:43Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.1→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ae269150c5337fee94c415046b48109a5a18bd02fb2859dd671e1d6110643335","version":10},{"created_at":"2026-06-04T04:56:20Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 56.3→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"1ca71941bae4f25ba0a7e36d31b627396dcf1b3c1a93a60609d65152645c8f63","version":9},{"created_at":"2026-06-04T04:56:20Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f6a4f8b7660eb9a05e7814d9246cc5ac40f0a5d06ed276faf4a10f4990dd1291","version":8}]}