HF RL Explorer

Issue: Asynchronous transaction send lacks a blocking confirmation method

Issue: Asynchronous transaction send lacks a blocking confirmation method: a task in LegoFlow-SWE (Harbor dataset). The current sendrawtransaction RPC call is asynchronous: it submits the transaction and returns immediately, without waiting for the transaction to be packaged into a block. Clients…

The task

The current `sendrawtransaction` RPC call is asynchronous: it submits the transaction and returns immediately, without waiting for the transaction to be packaged into a block. Clients must manually poll the `querytransaction` endpoint to know when the transaction is confirmed, which is cumbersome and error-prone.

Part of Lego-X/LegoFlow-SWE.