{"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-rlb3c61c","versions":[{"created_at":"2026-06-04T16:59:41Z","element_count":79,"note":"polish: batch-improve-100 2026-06-04 (95.2->98.7)","saved_by":"editor","sha256":"bde345df0368f67d2c305e26a8c8dc147d94500ed0e5c1bb4d2233003ba5a158","version":12},{"created_at":"2026-06-04T14:56:53Z","element_count":73,"note":"polish: batch-improve-100 2026-06-04 (95.1->95.2)","saved_by":"editor","sha256":"20b336c9f76a91133590187cb21b05fce8625493e2b2d252971a934da51be565","version":11},{"created_at":"2026-06-04T05:51:55Z","element_count":71,"note":"GA diverse re-design 2026-06-04: 総合 97.4→95.1 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 95.1 (美 96 環 99 楽 91))","saved_by":"editor","sha256":"8e465471c9f22c232e6cac4ea0e8e989705e00b02b11180866059b70dc79b79b","version":10},{"created_at":"2026-06-04T04:53:22Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 70.4→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c00551499afa34754864947adb979131f5f6c2a58083933390b155891386239f","version":9},{"created_at":"2026-06-04T04:53:22Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8b54a9148397c1314933d30f568c58aa60864dc92ee906c5764bd9b901e60a76","version":8}]}