{"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-2-86x873i4","versions":[{"created_at":"2026-06-04T17:01:13Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (94.5->100.0)","saved_by":"editor","sha256":"c8a5fc989eb27e241f2c9ede5904b19494479e24d717be1334dbf1a0ee97da80","version":11},{"created_at":"2026-06-04T05:55:14Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"77ac529ac64099b1a7e2207ba1add3b72554851e99ab425c752697d1ac011722","version":10},{"created_at":"2026-06-04T04:53:21Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 70.5→93.5 (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 93.5 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"5aa3b3f6503f4ad819d5f79f036f112ea1e2ca4e36dc9fe7c8d32476a3fecc3e","version":9},{"created_at":"2026-06-04T04:53:21Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d508cf5782c9f67c38e2ad68a58b037435668cf20978f628ba40b7fb242e843f","version":8}]}