{"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-tgt536jf","versions":[{"created_at":"2026-06-10T23:35:34Z","element_count":85,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy90050184→quote21093533 (旧polishコード再書き込みの再是正・rollback=m5:legacy_fix_rollback.jsonl phase=polish_recontam)","saved_by":"mcp","sha256":"0daa7bc377f9f63a0bcb5a1a7709e8088eb083fae63fa79565475e77dcb430a1","version":12},{"created_at":"2026-06-10T23:08:07Z","element_count":91,"note":"5軸GA polish 58->98 by M5 (autonomous)","saved_by":"mcp","sha256":"ea79c6a84b92ae09cd781504da55495dea45cf845113bc3137c60427364a8c4b","version":9},{"created_at":"2026-06-10T23:07:19Z","element_count":54,"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":"3b0c50f3984b2fe093f733561147b07b174fac77d9a8026049ba83080c58402f","version":8}]}