fix(webserve): drop the port argument the routing signature no longer takes

The node-root redirect removed the port parameter from path resolution deliberately, because a pasted port must never be honored over the receiving node's own listener. Six call sites in this file's test module still passed it, so the crate's unit tests could not compile — invisible to every integration-target producer, because a lib crate's test module is not in that build graph. Remove the stale argument; the signature is the correct half.

Co-authored by: todlando