test: add N13 selector verifier

scripts/verify-n13-uia-selectors.ps1

@@ -0,0 +1,37 @@
+$ErrorActionPreference = "Stop"
+Set-StrictMode -Version Latest
+
+$repo = (Resolve-Path -LiteralPath (Join-Path $PSScriptRoot "..")).Path
+Set-Location -LiteralPath $repo
+
+if (-not (Get-Command go -ErrorAction SilentlyContinue)) {
+    throw "go was not found. Run this verifier in a Go 1.23.x environment."
+}
+
+Write-Host "## go test ./internal/uiaselector"
+go test ./internal/uiaselector -count=1
+if ($LASTEXITCODE -ne 0) {
+    throw "go test ./internal/uiaselector failed with exit code $LASTEXITCODE"
+}
+
+Write-Host "## boundary grep"
+$forbidden = @(
+    "send_after_approval",
+    "send_file_after_approval",
+    "receive_file_after_approval",
+    "open_conversation",
+    "ValuePattern.SetValue",
+    "InvokePattern"
+)
+$files = @(
+    "internal\uiaselector\catalog.go",
+    "internal\uiaselector\matcher.go"
+)
+foreach ($term in $forbidden) {
+    $hit = Select-String -LiteralPath $files -Pattern $term -SimpleMatch -ErrorAction SilentlyContinue
+    if ($hit) {
+        throw "forbidden action term found in selector implementation: $term"
+    }
+}
+
+Write-Host "N13 UIA selector verification passed."