fix: escapado del $200 y filtro de IPs virtuales Docker/WSL2

- (\$200 credit) renderizaba (\ credit): en PS double-quoted el escape
  correcto es backtick-dollar.
- Get-NetIPAddress pilla adaptadores virtuales Docker/WSL2 (172.16-31.*):
  la URL VPS mostraba 172.22.x.x en vez de la IP LAN. Excluido el rango.

openclaw/deploy.ps1

@@ -88,7 +88,7 @@ if ($Mode -eq 'vps') {
     Write-Host ''
     Write-Host "  ${Bold}¿No tienes VPS?${NC} Consigue uno con descuento:"
     Write-Host "  ${Cyan}https://d0a1.es/go/vultr/${NC}  - Vultr"
-    Write-Host "  ${Cyan}https://d0a1.es/go/digitalocean/${NC}  - DigitalOcean (\$200 credit)"
+    Write-Host "  ${Cyan}https://d0a1.es/go/digitalocean/${NC}  - DigitalOcean (`$200 credit)"
     Write-Host ''
 }
 if ($OllamaPort -ne 11434) { Warn "Puerto 11434 ocupado, usando $OllamaPort" }