Feat: Add WIM compression for existing driver folders

Implements logic to compress previously downloaded driver folders into WIM files if the compression option is enabled. This ensures consistency in the driver store when re-running the download process.

Refactors the parallel task processing to rely on a standardized boolean 'Success' property from all driver download tasks. This simplifies the result handling logic and makes it more reliable than parsing status strings.

FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.Microsoft.psm1

@@ -109,6 +109,34 @@ function Save-MicrosoftDriversTask {
             if (-not $existingDriver.PSObject.Properties['Model']) {
                 $existingDriver | Add-Member -MemberType NoteProperty -Name 'Model' -Value $modelName
             }
+
+            # Special handling for existing folders that need compression
+            if ($CompressToWim -and $existingDriver.Status -eq 'Already downloaded') {
+                $makeDriversPath = Join-Path -Path $DriversFolder -ChildPath $make
+                $wimFilePath = Join-Path -Path $makeDriversPath -ChildPath "$($modelName).wim"
+                $sourceFolderPath = Join-Path -Path $makeDriversPath -ChildPath $modelName
+                WriteLog "Attempting compression of existing folder '$sourceFolderPath' to '$wimFilePath'."
+                if ($null -ne $ProgressQueue) { Invoke-ProgressUpdate -ProgressQueue $ProgressQueue -Identifier $modelName -Status "Compressing existing..." }
+                try {
+                    Compress-DriverFolderToWim -SourceFolderPath $sourceFolderPath -DestinationWimPath $wimFilePath -WimName $modelName -WimDescription "Drivers for $modelName" -ErrorAction Stop
+                    $existingDriver.Status = "Already downloaded & Compressed"
+                    $existingDriver.DriverPath = Join-Path -Path $make -ChildPath "$($modelName).wim"
+                    $existingDriver.Success = $true
+                    WriteLog "Successfully compressed existing drivers for $modelName to $wimFilePath."
+                }
+                catch {
+                    WriteLog "Error compressing existing drivers for $($modelName): $($_.Exception.Message)"
+                    $existingDriver.Status = "Already downloaded (Compression failed)"
+                    $existingDriver.Success = $false
+                }
+                if ($null -ne $ProgressQueue) { Invoke-ProgressUpdate -ProgressQueue $ProgressQueue -Identifier $modelName -Status $existingDriver.Status }
+            }
+
+            # Ensure the Success property exists on the object being returned.
+            if (-not $existingDriver.PSObject.Properties.Name -contains 'Success') {
+                $existingDriver | Add-Member -MemberType NoteProperty -Name 'Success' -Value $true
+            }
+
             return $existingDriver
         }