Constant CMD_CRYPTO_ACCOUNT_INFO 

pub const CMD_CRYPTO_ACCOUNT_INFO: u16 = 20631; // 20_631u16

Crypto 账户资产查询 (资金 + 持仓)。Ref: NNBase_Define_ProtoCmd.h:66-81 / NNProto_Trd_AccCrypto.cpp:197-215.