Module submitter 

Order submission facade for dYdX v4.

This module provides OrderSubmitter, a unified facade for submitting orders to dYdX. It internally uses the extracted components:

• TransactionManager: Sequence tracking and transaction signing
• TxBroadcaster: gRPC broadcast with retry logic
• OrderMessageBuilder: Proto message construction

The wallet is owned internally by TransactionManager, so method signatures don’t require passing &wallet on each call.

Structs

OrderSubmitter

Order submission facade for dYdX v4.