{"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-190t1od5","versions":[{"created_at":"2026-06-10T22:55:54Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy96334560→quote22302745 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"19407b41bb20b7155a8ab1811999ba4db0f778710219fba1b29c28408517cfdf","version":11},{"created_at":"2026-06-10T22:01:52Z","element_count":54,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"5824413f38d63ff06e727e3837d45bee251e5830fd992d9f9693561f76ac6363","version":5},{"created_at":"2026-06-10T18:29:58Z","element_count":72,"note":"5軸GA polish 60->96 by M5 (autonomous)","saved_by":"mcp","sha256":"390759e33e062e8d616f94a3695cc05003f31e166f5276239641a86128d62f6e","version":3}]}