Constant CMD_TRD_OVERNIGHT_WHITE_LIST 

pub const CMD_TRD_OVERNIGHT_WHITE_LIST: u16 = 20_874; // 20_874u16

Compatibility export for existing callers and diagnostics. C++ OpenD internal overnight-trading whitelist refresh command. Ref: NNBase/NNBase_Define_ProtoCmd.h:66 and NNProtoCenter/Trade/NNProto_Trd_OvernightWhiteList.cpp:49-72.