{"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-2-01hp760n","versions":[{"created_at":"2026-06-04T16:59:43Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"a1c064c9cd4c2b9bcabff4877d85a55de0d8fabdb808c714eb5e72c0aafd5c01","version":11},{"created_at":"2026-06-04T05:54:58Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"a2636f2f87d90f42ccc900ae5ff6267cd45307c9a43e5050d5f7a91f9b240f31","version":10},{"created_at":"2026-06-04T04:55:44Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 59.5→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"130f19836f2e2ef5d13bdec1a2a4188b2685e19cbb57f797031ebc96f6c9d289","version":9},{"created_at":"2026-06-04T04:55:44Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"799db4fb9f70b7db364bb85d15f28c57790010c2c2b19c6d82d40c9633bb99d1","version":8}]}