feat(gui): circuit connections

[binarybaron]

Summary

• add the libp2p circuit relay client transport and behaviour to the GUI swarm
• validate that relayed maker multiaddrs end with the destination peer ID
• leave the ASB swarm and behaviour unchanged

A relayed maker address has the form <relay-address>/p2p/<relay-peer-id>/p2p-circuit/p2p/<maker-peer-id>.

Testing

• cargo check --all-features
• cargo check --tests
• cargo check --all-targets
• yarn test --run src/utils/parseUtils.test.ts
• yarn tsc
• yarn eslint src/utils/parseUtils.ts src/utils/parseUtils.test.ts
• yarn build

The Docker happy_path test was started, but its native Monero dependency build had not completed when this PR was opened.

AI assistance: OpenAI Codex was used to help implement and test this change.

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Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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[cursor]

Relay hop exhausts yamux stream limit

Medium Severity

Outbound circuit dials open a long-lived hop stream on the existing connection to the relay, which still uses the CLI transport’s yamux cap of MAX_NUM_STREAMS (5). That cap was sized for a couple of short-lived protocol streams, not one hop stream per relayed peer. Connecting to more than a few makers through the same relay, which is the usual public-relay layout, will fail stream opens and drop those dials.

 

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