fix(windows): fix CLI argument passing for switches like -DryRun

- Fix mole.cmd batch launcher to properly pass switch arguments
- Store %~dp0 before parse loop to avoid expansion issues
- Use PowerShell splatting in Invoke-MoleCommand for proper switch handling
- Rename $script:DryRun to $script:MoleDryRunMode in file_ops.ps1 to avoid
  variable shadowing when dot-sourcing
- Handle switches passed as strings (e.g., '-ShowHelp') in mole.ps1 Main()

Fixes issue where 'mole clean -DryRun' would run cleanup instead of preview.

windows/install.ps1

@@ -294,9 +294,22 @@ function Install-Mole {
     }
     
     # Create launcher batch file for easier access
+    # Note: Store %~dp0 immediately to avoid issues with delayed expansion in the parse loop
     $batchContent = @"
 @echo off
-powershell.exe -ExecutionPolicy Bypass -NoLogo -File "%~dp0mole.ps1" %*
+setlocal EnableDelayedExpansion
+
+rem Store the script directory immediately before any shifting
+set "MOLE_DIR=%~dp0"
+
+set "ARGS="
+:parse
+if "%~1"=="" goto run
+set "ARGS=!ARGS! '%~1'"
+shift
+goto parse
+:run
+powershell.exe -ExecutionPolicy Bypass -NoLogo -NoProfile -Command "& '%MOLE_DIR%mole.ps1' !ARGS!"
 "@
     $batchPath = Join-Path $InstallDir "mole.cmd"
     Set-Content -Path $batchPath -Value $batchContent -Encoding ASCII

windows/lib/core/file_ops.ps1

@@ -17,7 +17,7 @@ $scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 # Global State
 # ============================================================================
 
-$script:DryRun = $env:MOLE_DRY_RUN -eq "1"
+$script:MoleDryRunMode = $env:MOLE_DRY_RUN -eq "1"
 $script:TotalSizeCleaned = 0
 $script:FilesCleaned = 0
 $script:TotalItems = 0
@@ -153,7 +153,7 @@ function Remove-SafeItem {
     $sizeHuman = Format-ByteSize -Bytes $size
     
     # Handle dry run
-    if ($script:DryRun) {
+    if ($script:MoleDryRunMode) {
         $name = if ($Description) { $Description } else { Split-Path -Leaf $Path }
         Write-DryRun "$name $($script:Colors.Yellow)($sizeHuman dry)$($script:Colors.NC)"
         Set-SectionActivity
@@ -216,7 +216,7 @@ function Remove-SafeItems {
         
         $size = Get-PathSize -Path $path
         
-        if ($script:DryRun) {
+        if ($script:MoleDryRunMode) {
             $totalSize += $size
             $removedCount++
             continue
@@ -243,7 +243,7 @@ function Remove-SafeItems {
         $sizeKB = [Math]::Ceiling($totalSize / 1024)
         $sizeHuman = Format-ByteSize -Bytes $totalSize
         
-        if ($script:DryRun) {
+        if ($script:MoleDryRunMode) {
             Write-DryRun "$Description $($script:Colors.Yellow)($removedCount items, $sizeHuman dry)$($script:Colors.NC)"
         }
         else {
@@ -330,7 +330,7 @@ function Remove-EmptyDirectories {
         
         foreach ($dir in $emptyDirs) {
             if (Test-SafePath -Path $dir.FullName) {
-                if (-not $script:DryRun) {
+                if (-not $script:MoleDryRunMode) {
                     try {
                         Remove-Item -Path $dir.FullName -Force -ErrorAction Stop
                         $removedCount++
@@ -347,7 +347,7 @@ function Remove-EmptyDirectories {
     }
     
     if ($removedCount -gt 0) {
-        if ($script:DryRun) {
+        if ($script:MoleDryRunMode) {
             Write-DryRun "$Description $($script:Colors.Yellow)($removedCount dirs dry)$($script:Colors.NC)"
         }
         else {
@@ -422,7 +422,7 @@ function Set-DryRunMode {
         Enable or disable dry-run mode
     #>
     param([bool]$Enabled)
-    $script:DryRun = $Enabled
+    $script:MoleDryRunMode = $Enabled
 }
 
 function Test-DryRunMode {
@@ -430,7 +430,7 @@ function Test-DryRunMode {
     .SYNOPSIS
         Check if dry-run mode is enabled
     #>
-    return $script:DryRun
+    return $script:MoleDryRunMode
 }
 
 # ============================================================================

windows/mole.ps1

@@ -146,7 +146,7 @@ function Show-MainMenu {
 # Command Router
 # ============================================================================
 
-function Invoke-Command {
+function Invoke-MoleCommand {
     param(
         [string]$CommandName,
         [string[]]$Arguments
@@ -161,8 +161,45 @@ function Invoke-Command {
         return
     }
     
-    # Execute the command script with arguments
-    & $scriptPath @Arguments
+    # Execute the command script with arguments using splatting
+    # This properly handles switch parameters passed as strings
+    if ($Arguments -and $Arguments.Count -gt 0) {
+        # Build a hashtable for splatting
+        $splatParams = @{}
+        $positionalArgs = @()
+        
+        foreach ($arg in $Arguments) {
+            # Remove surrounding quotes if present
+            $cleanArg = $arg.Trim("'`"")
+            
+            if ($cleanArg -match '^-(\w+)$') {
+                # It's a switch parameter (e.g., -DryRun)
+                $paramName = $Matches[1]
+                $splatParams[$paramName] = $true
+            }
+            elseif ($cleanArg -match '^-(\w+)[=:](.+)$') {
+                # It's a named parameter with value (e.g., -Name=Value or -Name:Value)
+                $paramName = $Matches[1]
+                $paramValue = $Matches[2].Trim("'`"")
+                $splatParams[$paramName] = $paramValue
+            }
+            else {
+                # Positional argument
+                $positionalArgs += $cleanArg
+            }
+        }
+        
+        # Execute with splatting
+        if ($positionalArgs.Count -gt 0) {
+            & $scriptPath @splatParams @positionalArgs
+        }
+        else {
+            & $scriptPath @splatParams
+        }
+    }
+    else {
+        & $scriptPath
+    }
 }
 
 # ============================================================================
@@ -194,27 +231,44 @@ function Main {
     # Initialize
     Initialize-Mole
     
+    # Handle switches passed as strings (when called via batch file with quoted args)
+    # e.g., mole '-ShowHelp' becomes $Command = "-ShowHelp" instead of $ShowHelp = $true
+    $effectiveShowHelp = $ShowHelp
+    $effectiveVersion = $Version
+    $effectiveCommand = $Command
+    
+    if ($Command -match '^-(.+)$') {
+        $switchName = $Matches[1]
+        switch ($switchName) {
+            'ShowHelp' { $effectiveShowHelp = $true; $effectiveCommand = $null }
+            'Help' { $effectiveShowHelp = $true; $effectiveCommand = $null }
+            'h' { $effectiveShowHelp = $true; $effectiveCommand = $null }
+            'Version' { $effectiveVersion = $true; $effectiveCommand = $null }
+            'v' { $effectiveVersion = $true; $effectiveCommand = $null }
+        }
+    }
+    
     # Handle version flag
-    if ($Version) {
+    if ($effectiveVersion) {
         Show-Version
         return
     }
     
     # Handle help flag
-    if ($ShowHelp -and -not $Command) {
+    if ($effectiveShowHelp -and -not $effectiveCommand) {
         Show-MainHelp
         return
     }
     
     # If command specified, route to it
-    if ($Command) {
+    if ($effectiveCommand) {
         $validCommands = @("clean", "uninstall", "analyze", "status", "optimize", "purge")
         
-        if ($Command -in $validCommands) {
-            Invoke-Command -CommandName $Command -Arguments $CommandArgs
+        if ($effectiveCommand -in $validCommands) {
+            Invoke-MoleCommand -CommandName $effectiveCommand -Arguments $CommandArgs
         }
         else {
-            Write-Error "Unknown command: $Command"
+            Write-Error "Unknown command: $effectiveCommand"
             Write-Host ""
             Write-Host "Available commands: $($validCommands -join ', ')"
             Write-Host "Run 'mole -ShowHelp' for more information"
@@ -239,7 +293,7 @@ function Main {
         }
         
         Clear-Host
-        Invoke-Command -CommandName $selectedCommand -Arguments @()
+        Invoke-MoleCommand -CommandName $selectedCommand -Arguments @()
         
         Write-Host ""
         Write-Host "  Press any key to continue..."