{"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-aqspo5so","versions":[{"created_at":"2026-06-10T23:35:29Z","element_count":85,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy90050184→quote20863604 (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":"6edeb5616da8784ba694203e8a6cb74d456d8c56f792b0afc75cdb0e8556d339","version":12},{"created_at":"2026-06-10T23:08:32Z","element_count":90,"note":"5軸GA polish 53->98 by M5 (autonomous)","saved_by":"mcp","sha256":"5f27155ba03f4d9215df44d1ec2730818a42e3ee4dd2a64f44b888dfb8764ae3","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":"63895a6d356b7b9424ee5f9e4a89cf0d61d95afa1995fbe5506b2032ed5980a8","version":8}]}