Quoting RESOLVE as a string and expanding with "$RESOLVE" passes the
flag and its value as a single token to curl; curl rejects the whole
string as an unknown option (exit 2). Switching to a Bash array and
"${RESOLVE[@]}" ensures the two words are always passed as separate
arguments regardless of quoting context.
Also aligns release.yml gateway detection with nightly.yml: replaces
`ip route` (requires iproute2) with /proc/net/route (always available
in the job container, no extra package needed).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
