Added comprehensive cmdlet documentation and updated module version to 2025.04.15.1033

docs/cmdlets/Get-OPNSenseSystemDNS.md

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+# Get-OPNSenseSystemDNS
+
+## SYNOPSIS
+Gets system DNS settings from an OPNSense firewall.
+
+## SYNTAX
+
+```
+Get-OPNSenseSystemDNS
+```
+
+## DESCRIPTION
+The Get-OPNSenseSystemDNS cmdlet retrieves system DNS settings from an OPNSense firewall, including DNS servers and domain search list.
+
+## EXAMPLES
+
+### Example 1: Get system DNS settings
+```powershell
+Get-OPNSenseSystemDNS
+```
+
+This example retrieves the system DNS settings from the OPNSense firewall.
+
+## PARAMETERS
+
+### CommonParameters
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
+
+## INPUTS
+
+### None
+
+## OUTPUTS
+
+### System.Object
+Returns an object representing the system DNS settings, including DNS servers and domain search list.
+
+## NOTES
+This cmdlet requires a connection to an OPNSense firewall. Use Connect-OPNSense to establish a connection.
+
+## RELATED LINKS
+
+[Set-OPNSenseSystemDNS](Set-OPNSenseSystemDNS.md)
+[Get-OPNSenseDNSServer](Get-OPNSenseDNSServer.md)
+[Set-OPNSenseDNSServer](Set-OPNSenseDNSServer.md)