{"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-g4-3q79yyiy","versions":[{"created_at":"2026-06-04T05:52:00Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.1→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"29773c1a8184dd608ef90b85e9e81c9236c3dc6259eb8a63e5d2f28affd40c72","version":4},{"created_at":"2026-06-04T04:55:06Z","element_count":97,"note":"GA batch-improve 2026-06-04: 総合 63.2→97.1 (中庭ロの字・吹抜 ピアノ室 PV 天窓 / 適応度 97.1 (美 100 環 88 楽 100))","saved_by":"editor","sha256":"d4c14209fdf96a432acc2436f112c3bbccc901b5d2f46568bc51f4629290e256","version":3},{"created_at":"2026-06-04T04:55:06Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"988be5bf33ca956d0e2422ebd0de5406c6d3486e0f6b9f8f72d34c9599cebbb2","version":2}]}