{"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-px6n8psb","versions":[{"created_at":"2026-06-10T23:35:32Z","element_count":77,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy72816480→quote19847721 (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":"e7e155a16e3f36007d19f9459ea46d1a0c1d6ce50b3265d3d2e88d6f1851b8f6","version":11},{"created_at":"2026-06-10T23:08:04Z","element_count":83,"note":"5軸GA polish 60->98 by M5 (autonomous)","saved_by":"mcp","sha256":"4d617f5d13effa39f72b54c154572d89df4a8cd05c0da07015fb2b8d34e0c025","version":8},{"created_at":"2026-06-10T23:07:30Z","element_count":50,"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":"3ade7a5ab90156f2cdcc19351adbd183ff0ffe6550127214dd3c1a2489311de2","version":7}]}