Constant MAX_CLIENT_ID 

pub const MAX_CLIENT_ID: u32 = u32::MAX; // 4_294_967_295u32

Maximum client order ID value for dYdX (informational - not enforced by adapter).

dYdX protocol accepts u32 client IDs. The current implementation uses sequential allocation starting from 1, which will wrap at u32::MAX. If dYdX has a stricter limit, this constant should be updated and enforced in generate_client_order_id_int.