{"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-maru-beyi1d9n","versions":[{"created_at":"2026-06-04T17:01:23Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"05e95117837520ad8d263f79a5456c855dd4d130d601f751aae43584ececbf71","version":11},{"created_at":"2026-06-04T05:53:23Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→92.4 (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 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"5bd2286680571d8b89621b6b4bb598c6f5d6bcb90d0da722e950dc5167116c4d","version":10},{"created_at":"2026-06-04T04:55:31Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 61.0→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":"322373cbc24e02cccb2716031f9437d9e5201050da5cfede05347816430251ea","version":9},{"created_at":"2026-06-04T04:55:31Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"742da42e39db9247bf3a685d8b09fa5a5e34f0e2f033b3461f66fb01cef4edaa","version":8}]}