{"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-2j75vx11","versions":[{"created_at":"2026-06-04T05:51:45Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.6→97.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 97.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"b3d58c1e93ae9f395ccc8c6d70c2d8c27bbacd4684d3bf94297f9468a764e045","version":10},{"created_at":"2026-06-04T04:53:38Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.6→97.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 97.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"90c06682fc33739a5e32cd6e422a2adbec3274ce7665da0c35c7b2fe2d0406ac","version":9},{"created_at":"2026-06-04T04:53:38Z","element_count":41,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6a6cec3cf40dac5893656376eb686722fc837c197832d4230745964ed88440b7","version":8}]}