fixes save

scripts/fix-duplicate-packages.ps1

@@ -0,0 +1,65 @@
+# Remove duplicate test package references from .Tests.csproj files
+# These are already centrally defined in src/Directory.Build.props
+# This script handles both self-closing <PackageReference ... /> 
+# and extended elements with child nodes like <PrivateAssets> and <IncludeAssets>
+
+param(
+    [string]$SrcPath = "E:\dev\git.stella-ops.org\src",
+    [switch]$DryRun
+)
+
+$packagesToRemove = @(
+    'xunit',
+    'xunit.runner.visualstudio',
+    'Microsoft.NET.Test.Sdk',
+    'coverlet.collector',
+    'Microsoft.AspNetCore.Mvc.Testing',
+    'Microsoft.Extensions.TimeProvider.Testing'
+)
+
+$testProjects = Get-ChildItem -Path $SrcPath -Filter "*.Tests.csproj" -Recurse
+$modifiedCount = 0
+$modifiedFiles = @()
+
+foreach ($proj in $testProjects) {
+    $content = Get-Content $proj.FullName -Raw
+    $modified = $false
+    
+    foreach ($pkg in $packagesToRemove) {
+        # Pattern 1: Self-closing <PackageReference Include="pkg" Version="..." />
+        $pattern1 = '\s*<PackageReference\s+Include="' + [regex]::Escape($pkg) + '"\s+Version="[^"]*"\s*/>\s*'
+        if ($content -match $pattern1) {
+            $content = $content -replace $pattern1, "`n"
+            $modified = $true
+        }
+        
+        # Pattern 2: Extended elements with child nodes
+        # <PackageReference Include="pkg" Version="...">...</PackageReference>
+        $pattern2 = '\s*<PackageReference\s+Include="' + [regex]::Escape($pkg) + '"[^>]*>[\s\S]*?</PackageReference>\s*'
+        if ($content -match $pattern2) {
+            $content = $content -replace $pattern2, "`n"
+            $modified = $true
+        }
+    }
+    
+    if ($modified) {
+        # Clean up multiple blank lines
+        $content = $content -replace '(\r?\n){3,}', "`r`n`r`n"
+        
+        if (-not $DryRun) {
+            Set-Content $proj.FullName -Value $content.TrimEnd() -NoNewline
+        }
+        
+        $modifiedCount++
+        $modifiedFiles += $proj.Name
+        Write-Host "Modified: $($proj.Name)"
+    }
+}
+
+Write-Host "`n=== Summary ==="
+Write-Host "Total test projects scanned: $($testProjects.Count)"
+Write-Host "Total modified: $modifiedCount"
+
+if ($DryRun) {
+    Write-Host "(DRY RUN - no files were changed)"
+}