Windows Firewall prompted on every run of amneziawgnet.test.exe, since
the tests opened AmneziaWG, outbound-client and port-forward sockets on
all interfaces and go test rebuilds the binary under a fresh temp path,
so a granted exception never sticks.
Route every "all interfaces" bind through wildcardBindHost, which is
empty in production (behaviour unchanged) and pinned to 127.0.0.1 by
the package TestMain.
MHSanaei