Fix PowerShell parameter conflicts by renaming Verbose to VerboseOutput

- Fixed parameter conflicts in sf-data-export.ps1, sf-data-import.ps1, sf-retrieve.ps1, and sf-test-run.ps1
- Renamed conflicting \ parameter to \ to avoid conflicts with PowerShell's built-in -Verbose common parameter
- Added proper parameter sets to ensure -Help parameter works correctly in all scripts
- Added -hp aliases where needed for consistency across all scripts
- All scripts now properly support help functionality without parameter conflicts

This resolves issues where scripts would fail with 'A parameter with the name Verbose was defined multiple times' error.

sf-test-run.ps1

@@ -32,7 +32,7 @@
 .PARAMETER OutputDir
     Directory to store test results and reports
 
-.PARAMETER Verbose
+.PARAMETER VerboseOutput
     Enable verbose test output
 
 .PARAMETER Help
@@ -63,11 +63,38 @@ param(
     [Parameter(ParameterSetName="Suite")]
     [string]$Suite,
     
+    [Parameter(ParameterSetName="Classes")]
+    [Parameter(ParameterSetName="Methods")]
+    [Parameter(ParameterSetName="Level")]
+    [Parameter(ParameterSetName="Suite")]
     [switch]$Coverage,
+    
+    [Parameter(ParameterSetName="Classes")]
+    [Parameter(ParameterSetName="Methods")]
+    [Parameter(ParameterSetName="Level")]
+    [Parameter(ParameterSetName="Suite")]
     [int]$Wait = 10,
+    
+    [Parameter(ParameterSetName="Classes")]
+    [Parameter(ParameterSetName="Methods")]
+    [Parameter(ParameterSetName="Level")]
+    [Parameter(ParameterSetName="Suite")]
     [string]$o,
+    
+    [Parameter(ParameterSetName="Classes")]
+    [Parameter(ParameterSetName="Methods")]
+    [Parameter(ParameterSetName="Level")]
+    [Parameter(ParameterSetName="Suite")]
     [string]$OutputDir,
-    [switch]$Verbose,
+    
+    [Parameter(ParameterSetName="Classes")]
+    [Parameter(ParameterSetName="Methods")]
+    [Parameter(ParameterSetName="Level")]
+    [Parameter(ParameterSetName="Suite")]
+    [switch]$VerboseOutput,
+    
+    [Parameter(ParameterSetName="Help", Mandatory=$true)]
+    [Alias("hp")]
     [switch]$Help
 )
 
@@ -181,7 +208,7 @@ $sfArgs += "--result-format"
 $sfArgs += "human"
 
 # Add verbose flag if requested
-if ($Verbose) {
+if ($VerboseOutput) {
     $sfArgs += "--verbose"
 }