{"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-rlnhgh32","versions":[{"created_at":"2026-06-10T23:39:51Z","element_count":72,"note":"5軸GA polish 50->96 by M5 (autonomous)","saved_by":"mcp","sha256":"31563413e8a6b4f95f5e6da0f32d78131bcd71f62c724369af00ee94d453981f","version":11},{"created_at":"2026-06-10T23:09:20Z","element_count":44,"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":"7a523753431e3a33ebaac9044e99b3ff52177fd7754d5288d7f07324046e2166","version":7}]}