{"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-oakleywoodlodgehouse-q3gclxzv","versions":[{"created_at":"2026-06-16T10:56:38Z","element_count":73,"note":"5軸GA polish 44->97 by M5 (autonomous)","saved_by":"mcp","sha256":"51c7abf17c90564247d037559f523facc8665c4f6cc0c32814aa6ab81e1186c7","version":3},{"created_at":"2026-06-16T10:47:02Z","element_count":130,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"101f778702a976d42c7399b4eb584b6a0f0f2cddfc5dbcf614d661ec5d4813f4","version":2},{"created_at":"2026-06-16T10:47:02Z","element_count":130,"note":"言葉から生成: LDK+main bedroom+2 kids rooms+bathroom+storage","saved_by":"mcp:create","sha256":"","version":1}]}