Fix threading issue in cmdlets

- Fixed threading issue in cmdlets that was causing 'WriteObject and WriteError methods cannot be called from outside the overrides' error
- Changed module structure to use DLL as root module instead of nested module
- Updated configuration cmdlets to properly handle async operations

src/PSOPNSenseAPI/Cmdlets/ExportOPNSenseConfigCmdlet.cs

@@ -54,8 +54,8 @@ namespace PSOPNSenseAPI.Cmdlets
 
                 var configService = new ConfigService(ApiClient, Logger);
 
-                var task = Task.Run(async () => await configService.ExportConfigAsync());
-                var configContent = task.GetAwaiter().GetResult();
+                // Execute the async method synchronously on the main thread
+                var configContent = configService.ExportConfigAsync().GetAwaiter().GetResult();
 
                 // Create the directory if it doesn't exist
                 var directory = System.IO.Path.GetDirectoryName(fullPath);

src/PSOPNSenseAPI/Cmdlets/GetOPNSenseConfigCmdlet.cs

@@ -34,8 +34,8 @@ namespace PSOPNSenseAPI.Cmdlets
             {
                 var configService = new ConfigService(ApiClient, Logger);
 
-                var task = Task.Run(async () => await configService.ExportConfigAsync());
-                var configContent = task.GetAwaiter().GetResult();
+                // Execute the async method synchronously on the main thread
+                var configContent = configService.ExportConfigAsync().GetAwaiter().GetResult();
 
                 // Convert the byte array to an XML document
                 var xmlDoc = new XmlDocument();

src/PSOPNSenseAPI/Cmdlets/ImportOPNSenseConfigCmdlet.cs

@@ -62,8 +62,8 @@ namespace PSOPNSenseAPI.Cmdlets
                 // Read the configuration file
                 var configContent = File.ReadAllBytes(fullPath);
 
-                var task = Task.Run(async () => await configService.ImportConfigAsync(configContent));
-                var result = task.GetAwaiter().GetResult();
+                // Execute the async method synchronously on the main thread
+                var result = configService.ImportConfigAsync(configContent).GetAwaiter().GetResult();
 
                 WriteVerbose($"Imported configuration from {fullPath}: {result.Status}");
                 WriteWarning("The firewall is restarting. You may need to reconnect after it comes back online.");

src/PSOPNSenseAPI/Cmdlets/RestoreOPNSenseConfigCmdlet.cs

@@ -68,10 +68,8 @@ namespace PSOPNSenseAPI.Cmdlets
 
                 if (ParameterSetName == "Filename")
                 {
-                    // Restore from backup file
-                    var task = Task.Run(async () => await configService.RestoreConfigBackupAsync(Filename));
-                    var result = task.GetAwaiter().GetResult();
-
+                    // Restore from backup file - execute synchronously on the main thread
+                    var result = configService.RestoreConfigBackupAsync(Filename).GetAwaiter().GetResult();
                     WriteVerbose($"Restored configuration from backup: {result.Status}");
                 }
                 else
@@ -84,9 +82,8 @@ namespace PSOPNSenseAPI.Cmdlets
                         configContent = memoryStream.ToArray();
                     }
 
-                    var task = Task.Run(async () => await configService.ImportConfigAsync(configContent));
-                    var result = task.GetAwaiter().GetResult();
-
+                    // Execute synchronously on the main thread
+                    var result = configService.ImportConfigAsync(configContent).GetAwaiter().GetResult();
                     WriteVerbose($"Restored configuration from XML document: {result.Status}");
                 }
 

src/PSOPNSenseAPI/PSOPNSenseAPI.psd1

@@ -1,6 +1,6 @@
 @{
     # Script module or binary module file associated with this manifest.
-    RootModule = 'PSOPNSenseAPI.psm1'
+    RootModule = 'lib\PSOPNSenseAPI.dll'
 
     # Version number of this module.
     ModuleVersion = '2025.04.15.1143'
@@ -57,7 +57,7 @@
     # FormatsToProcess = @()
 
     # Modules to import as nested modules of the module specified in RootModule/ModuleToProcess
-    NestedModules = @('lib\PSOPNSenseAPI.dll')
+    # NestedModules = @()
 
     # Functions to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no functions to export.
     FunctionsToExport = @()

src/PSOPNSenseAPI/PSOPNSenseAPI.psm1

@@ -1,13 +0,0 @@
-# Load the main assembly directly
-$mainDllPath = Join-Path $PSScriptRoot "lib\PSOPNSenseAPI.dll"
-
-Write-Verbose "Loading assembly from $mainDllPath"
-
-try {
-    Add-Type -Path $mainDllPath
-    Write-Verbose "Successfully loaded assembly from $mainDllPath"
-} catch {
-    $errorMessage = $_.Exception.Message
-    Write-Error "Failed to load assembly from $($mainDllPath): $($errorMessage)"
-    throw
-}