Feature: add Ethereum BAR node-owner flow

[joshglogau]

Summary

• expose optional ethereum.nodeOwners support for canonical WireNodes tier reads, ERC-1155 approval, and BAR.commitNode
• compose registration inputs from @wireio/sdk-core Name and PublicKey domain types
• use the published ethers v6 BAR and IERC-1155 clients from @wireio/outpost-ethereum-artifacts@0.2.2
• keep BAR optional so deployment profiles without node-owner support retain existing reserve and swap behavior

Design boundaries

• no local ABI, generated contract output, deployment bundle, or artifact generator
• no fallback token address; the canonical WireNodes address comes from BAR and zero fails closed
• no test-token minting or Wire-side account orchestration in the public SDK
• no staking or reward behavior; BAR node-owner registration remains a separate capability

Verification

• sdk-outpost build passes
• sdk-outpost: 11 suites / 61 tests pass
• repository lint passes
• full repository: 87 suites / 948 tests pass
• profiles without BAR continue to create reserve and swap clients; only nodeOwners is unavailable

Stack

• targets wire-libraries-ts#56
• Ethereum producer fix wire-ethereum#188 is merged
• @wireio/outpost-ethereum-artifacts@0.2.2 is published and pinned

This PR is ready to merge into the SDK-outpost feature branch.