2026-08-16T11:40:12.550Z  INFO  request  GET /v1/search?q=%E9%80%80%E6%AC%BE
2026-08-16T11:40:12.553Z  DEBUG rewrite  "退款" -> "退款 流程 规则"
2026-08-16T11:40:12.901Z  INFO  recall  dense=42 sparse=17 merged=51
2026-08-16T11:40:13.220Z  ERROR rerank  status=500 body={"error":"model not loaded"}
2026-08-16T11:40:13.221Z  INFO  fallback  rerank skipped, returning raw recall order