{"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-2-u28muts3","versions":[{"created_at":"2026-06-04T17:00:55Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.6->95.7)","saved_by":"editor","sha256":"1c7784229d29e991230382c9b46553ffc54580123a6b5599960ada19b449e377","version":12},{"created_at":"2026-06-04T05:56:13Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 90.6→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"8b85c5847ae4fa2066c46ed504b5b7f64fadc599a07a73a3a76fbf7f5c959cfe","version":11},{"created_at":"2026-06-04T05:03:51Z","element_count":70,"note":"GA batch-improve pass2 2026-06-04: 総合 89.9→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"ae92aab408c2bebbe6f88c22b40f06224ce6287b7b10b5a8d9a91303d2e3dca0","version":10},{"created_at":"2026-06-04T04:56:28Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 54.4→89.9 (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 89.9 (美 94 環 97 楽 100))","saved_by":"editor","sha256":"90f13a048f8184081e0b2a81b67c8067a9ad203aedecbbc8cdc4fa82d72ddac8","version":9},{"created_at":"2026-06-04T04:56:28Z","element_count":28,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8c220f50aa74e8250b3d5e8c39179baf83cbd530c47135de4a959d2547078bbf","version":8}]}