chore: add phpstan-stubs

Author: danjohnson95

phpstan-stubs.php

@@ -0,0 +1,11 @@
+<?php
+
+// Stubs for PHPStan analysis — these functions are defined in tests/Pest.php
+// and are available at runtime, but PHPStan needs them declared here.
+
+if (! function_exists('getTestSupportPath')) {
+    function getTestSupportPath(string $path): string
+    {
+        return __DIR__.'/tests/TestSupport/'.$path;
+    }
+}