Add a switch guard before the 30-second context in ping() so that invalid
ping type strings (e.g. "disco" vs "Disco") reject immediately with a clear
error rather than silently timing out because userspaceEngine.Ping has no
default case.
For queryDNS(), detect SERVFAIL responses returned with an empty resolver
list (the typical state when an exit node is active but the DNS manager
forwarder has no configured upstreams) and fall back to querying 8.8.8.8
via the dialer — which honours exit-node routing — for A/AAAA record types.
Fall further back to the browser's native resolver if UserDial fails.
Also accept bare IP addresses in whoIs() (in addition to ip:port) so
callers don't need to fabricate a port when they only have a peer IP.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
codinget
7fd2507611