fix: resolve PHPStan level 9 errors and bump version to v3.1.3

src/Rules/EmbedAccessibility.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Rules;
+
+use DOMElement;
+use YakNet\AccessibilityConsole\Core\Severity;
+use YakNet\AccessibilityConsole\Core\Violation;
+use YakNet\AccessibilityConsole\Core\WCAGStandard;
+
+class EmbedAccessibility extends AbstractRule
+{
+    public function getId(): string { return 'WCAG_1_1_1_EmbedAccessibility'; }
+    public function getDescription(): string { return 'Checks that <embed> elements have aria-label, aria-labelledby, or title attribute for accessible name.'; }
+    public function getStandard(): WCAGStandard { return WCAGStandard::A; }
+    public function getSeverity(): Severity { return Severity::ERROR; }
+    public function getLevel(): int { return 3; }
+
+    public function check(DOMElement $element): ?Violation
+    {
+        if (strtolower($element->tagName) !== 'embed') {
+            return null;
+        }
+        
+        $ariaLabel = $element->getAttribute('aria-label');
+        $ariaLabelledby = $element->getAttribute('aria-labelledby');
+        $title = $element->getAttribute('title');
+        
+        if (empty(trim($ariaLabel)) && empty(trim($ariaLabelledby)) && empty(trim($title))) {
+            return $this->createViolation(
+                $element,
+                '<embed> öğesinde erişilebilir isim eksik.',
+                'Provide an aria-label, aria-labelledby, or title attribute for the <embed> element.'
+            );
+        }
+        
+        return null;
+    }
+}