{"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-qphdhh9y","versions":[{"created_at":"2026-06-10T23:35:33Z","element_count":63,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy68153976→quote22685733 (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":"416f47d729462a09100e095a22c4308cc9b841bc586127c119e694498a3b53e1","version":12},{"created_at":"2026-06-10T23:08:00Z","element_count":83,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"db8f4039fd9edb4591c352f7606c4cec36c107dbd43f39013c92c492af30da34","version":9},{"created_at":"2026-06-10T23:07:23Z","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":"3edd97df103fa071b61224fb62acc32f176724e9e923a387c5e53f84cef0edd7","version":8}]}