CI / check (push) Failing after 6m14s
The prior test drove the proxying app via Hono's in-process app.request() harness, which has no real Node socket — so it could only assert the header was non-empty-or-absent, not that the real client IP round-trips. Spin the proxying app up with @hono/node-server (real loopback socket) and assert the upstream actually receives 127.0.0.1/::1, exercising the same remoteAddress lookup arenaProxy uses in production. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>