{"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-house-w0c0eoai","versions":[{"created_at":"2026-06-10T23:39:39Z","element_count":72,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"da4af1e4acc4bb2a70bd31c11dcd80a7e5abcb1fcd6c263d3a3698faabfe0f17","version":11},{"created_at":"2026-06-10T23:09:09Z","element_count":47,"note":"legacy fix: rooms設備語除去 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"f573a6b8c09f8594ef25b8b29ca523b38ad4d7e94aa8a1d0619644b305407cd9","version":7}]}