{"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-nulc22nc","versions":[{"created_at":"2026-06-10T23:35:30Z","element_count":77,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy72844800→quote22379006 (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":"2a8676de6433a861fe06d3b6f3e2682eb07628f41aed5ba7d65e9772e46c4f1f","version":12},{"created_at":"2026-06-10T23:07:52Z","element_count":69,"note":"5軸GA polish 61->95 by M5 (autonomous)","saved_by":"mcp","sha256":"2f362b578e12fad83aa1cea9bf5d9b1017e59b735c3c1a6e9a8289b7e9ab075d","version":9},{"created_at":"2026-06-10T23:07:09Z","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":"bdf4f3ed78ce72b0796870994b5bd2efb711171ed575d1cd83c4e4ca2597c31c","version":8}]}