Ethereum Stop Sequence

[MicahMaphet]

🛑 Description

Previously when using ethereum on bitcore-node, the server would never stop. This was caused by the ethereum rpcs not stopping. This solves this by tearing down the rps with a delay of 100 ms, which prevents errors.
Currently, with ethereum it still has an exit code of 1. This is unsolved.

🪵 Changelog

• Tear down rpcs when ethereum workers start with a 100ms delay

🧪 Testing Notes

Tested with a bitcore.config.json that only uses ethereum.
Run, and stop on master and eth-stop:

$ npm run p2p
[press ^C after ETH:regtest up to date message]
info :: 2026-05-08T06:27:30.011Z :: ETH:regtest up to date.
^Cinfo :: 2026-05-08T06:27:33.530Z :: Shutting down P2P pid 55016

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Checklist

• I have read CONTRIBUTING.md and verified that this PR follows the guidelines and requirements outlined in it.