{"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-zfppo61h","versions":[{"created_at":"2026-06-10T23:35:35Z","element_count":85,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy90050184→quote20424136 (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":"b273827ac2b1104b51c80baee61e085fb4caa2a54a8dadb38fa060da51a30d88","version":11},{"created_at":"2026-06-10T23:08:23Z","element_count":90,"note":"5軸GA polish 60->98 by M5 (autonomous)","saved_by":"mcp","sha256":"c84a679c74e8a334deadc13972153572ddac75613f199794934ea38fd510ea64","version":8},{"created_at":"2026-06-10T23:07:38Z","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":"ee2a606d11334a01630e738caaaf3a364acf7015a4f8ea191d9cea7a1ffa6126","version":7}]}