Hono middleware that forwards /api/* to ARENA_UPSTREAM_URL when set, with
standalone mode (env unset) and /api/health untouched. Verified end-to-end
against a real second HTTP server: register a bot upstream, read it back
through the proxy, method/query/JSON body forwarded unchanged, inbound Host
header dropped, response content-encoding/content-length stripped.
TDD: 6 tests written first and confirmed failing (module didn't exist),
then implemented to green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Adds docker-compose.arena.yml (registry image only, no build, no payment
env, no TRUSTED_PROXY since no reverse proxy fronts it) and
docs/arena-deployment.md (full runbook: host paths, port, secret handling,
seed decision, NPM/TLS upgrade path, teardown) for the one canonical public
arena at http://146.59.87.168:9100 (user decision 2026-07-30: no DNS/TLS
this phase, plain HTTP on the raw port; TLS is a later env-only upgrade).
Deployed + verified on VPS2: healthy on-host and off-host, seeded with a
full read-only copy of archi-dev-box's botfights.db (115 bots/102,440
fights; source untouched, mtime verified unchanged).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>