`weed server -ip.bind=127.0.0.1` keeps every listener local, but the
same address became the source of outbound connections, so the filer
dialled its remote mount from 127.0.0.1 and failed with "connect:
invalid argument". A loopback source cannot reach off the host; leave
the source to the OS, as for a wildcard bind.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>