{"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-yzlr2ce4","versions":[{"created_at":"2026-06-04T05:51:21Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.6→98.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"810af5e386324bb73dcfc69553bcd2106f29ac3a51639735ad6cd31c2e2acec9","version":10},{"created_at":"2026-06-04T04:56:49Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 50.1→98.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7e10a35b6dafabba1369ebb5848fd8f8ed9b97683be3eb2d7def7fdb3ffc0776","version":9},{"created_at":"2026-06-04T04:56:49Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3ef3a717144becc2714552c2df01c7a7f2b286317d1ae9f0fea439119ae12fb8","version":8}]}