Module stock_information_svr 

v1.4.38 Phase 2 A2b: CMD 20106 on-demand stock/option info lookup by symbol

Structs

OptionResultInfo

Rust 只解析 OptionResultInfo 子集。stock/future/crypto 字段略过。

SecuritiesReq

SecuritiesRsp

StockInfoItem

v1.4.38 最小 subset：只含 stock_id / code / name / lot_size，填进 static_cache 够用

Enums

RetCode