feat(p2p): add address info to peer event reporting #19716

[gzliudan]

Proposed changes

Ref: ethereum#19716

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• Consensus
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Checklist

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• This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
• Tested on a private network from the genesis block and monitored the chain operating correctly for multiple epochs.
• Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
• Relevant documentation has been updated as part of this PR
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[Copilot]

Pull request overview

This PR enhances p2p peer event reporting by including connection endpoint information (local/remote addresses) in PeerEvent emissions, improving observability for peer lifecycle and message traffic events.

Changes:

• Extend p2p.PeerEvent with LocalAddress and RemoteAddress fields (JSON local/remote).
• Populate local/remote addresses for peer add/drop events in p2p/server.go.
• Populate local/remote addresses for per-message send/receive events via msgEventer.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
p2p/server.go	Adds local/remote endpoint strings to peer add/drop events.
p2p/peer.go	Passes connection address info into the message event wrapper during protocol startup.
p2p/message.go	Extends message send/recv peer events to include local/remote addresses and updates msgEventer to carry them.