Function canonical_fund_trd_market_label 

pub fn canonical_fund_trd_market_label(
    market: TrdMarket,
) -> Option<&'static str>

Label for canonical OpenAPI fund markets only.

Do not use view_only_fund_market_label for parsed enum values: that helper also covers backend raw cache IDs, where raw HKFund=13 overlaps canonical TrdMarket::FuturesSimulateJP.