{"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-jhmf9w3o","versions":[{"created_at":"2026-06-04T17:00:33Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.7->99.2)","saved_by":"editor","sha256":"4148c59a2d99126d059261031637bda9c49ecc1d03cc733b6810a3fb4b42981e","version":11},{"created_at":"2026-06-04T05:49:27Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 100.0→90.7 (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 90.7 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"e5d5c1ccaf6371b2c2adb21d6ad280447f7c56fb1ac6b6107efc270d419d9fd3","version":10},{"created_at":"2026-06-04T04:54:06Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 67.4→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6677a54327c9a1cb7ee3d563cc623544c64bcbfc81b8952d5513f8ee61117424","version":9},{"created_at":"2026-06-04T04:54:06Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9b4586b3679ec4e9ed79447120eaacbef2a43af2d0aa892e26ee4cdff1b3111d","version":8}]}