{"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-m3nrbyng","versions":[{"created_at":"2026-06-10T23:35:28Z","element_count":85,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy90050184→quote20693313 (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":"b3649c71f108c63ef44b1f443f71361799f3669434be8de8772691741e4bd5b6","version":11},{"created_at":"2026-06-10T23:08:16Z","element_count":90,"note":"5軸GA polish 54->98 by M5 (autonomous)","saved_by":"mcp","sha256":"ace06949aa69a1a5ca0f9bc5cbbc19ecbc0625f31724311f234492b134fa0b6d","version":8},{"created_at":"2026-06-10T23:07:27Z","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":"166f97bdd92e694c8aed8525dfadd2bdb7a30cbbea982fbf0bc356b3147b0f45","version":7}]}