chore: housekeeping & make eslint happy

[SukkaW]

Summary

Update eslint-plugin-vibe-proof and eslint-plugin-sukka, fix all new ESLint errors.

Verification

Checklist

• pnpm check:ci and pnpm test both pass (plus cargo fmt / clippy / test for Rust changes)
• I ran the affected surface and observed the change working
• If a wire message changed: WIRE_PROTOCOL_VERSION is bumped
• New code and assets are my own work, or their origin and license compatibility are noted above
• Docs and comments are updated where behavior changed