{"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-ysxdi7rs","versions":[{"created_at":"2026-06-04T16:59:31Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"9e833d8474fad597504b6876dfbebe7c3ac42b1b919fc3697dd0f60905b13405","version":11},{"created_at":"2026-06-04T05:53:11Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":10},{"created_at":"2026-06-04T04:55:47Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.3→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"af576c8ee6f07b951008d87de7608fca43cebf13a5ef75641fb2b06c48a12083","version":9},{"created_at":"2026-06-04T04:55:47Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ad256a14cb9d2d8602a97499c47698540bd31090f83ab55cfb91d4cfb5cb31bb","version":8}]}