{"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-yn4nxk19","versions":[{"created_at":"2026-06-10T22:52:41Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy72844800→quote24212747 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"b21b28eee692fbd49b3a8d7a5319912bea6a8e5b5b839c7ce64e52fc11d90f77","version":15},{"created_at":"2026-06-10T22:01:21Z","element_count":54,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"8fe05f7e8d7abad9124e6fc6e91bd1aff8c4baaeac079e584fd6b7297a7f1014","version":9},{"created_at":"2026-06-10T15:18:55Z","element_count":69,"note":"5軸GA polish 61->95 by M5 (autonomous)","saved_by":"mcp","sha256":"2f362b578e12fad83aa1cea9bf5d9b1017e59b735c3c1a6e9a8289b7e9ab075d","version":6}]}