1.2.0

Added

• Remove-RouterSshPortProxy - teardown counterpart to
  Set-RouterSshPortProxy. Removes every netsh portproxy rule forwarding
  to a given router IP (keyed on the connect target, so it sweeps relays
  under any listen address). netsh portproxy state persists across VM /
  switch teardown, so without this the rules accumulate per router IP
  across lifecycles and a stale entry can shadow the WSL relay
  auto-discovery for the next router.
• Remove-RouterSshPortProxyFirewall - teardown counterpart to
  Set-RouterSshPortProxyFirewall; removes the inbound allow rule by its
  port-keyed DisplayName so the firewall surface is torn down symmetrically
  with the portproxy.