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

src/Rules/AriaRequiredAttr.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Rules;
+
+use DOMElement;
+use YakNet\AccessibilityConsole\Core\Severity;
+use YakNet\AccessibilityConsole\Core\Violation;
+use YakNet\AccessibilityConsole\Core\WCAGStandard;
+
+class AriaRequiredAttr extends AbstractRule
+{
+    public function getId(): string { return 'WCAG_4_1_2_ARIA_REQUIRED_ATTR'; }
+    public function getDescription(): string { return 'Elements with ARIA roles must have all required ARIA attributes for that role.'; }
+    public function getStandard(): WCAGStandard { return WCAGStandard::A; }
+    public function getSeverity(): Severity { return Severity::ERROR; }
+    public function getLevel(): int { return 3; }
+
+    public function check(DOMElement $element): ?Violation
+    {
+        if (!$element->hasAttribute('role')) {
+            return null;
+        }
+
+        $roles = explode(' ', strtolower(trim($element->getAttribute('role'))));
+        $requiredMap = [
+            'slider' => ['aria-valuenow', 'aria-valuemin', 'aria-valuemax'],
+            'checkbox' => ['aria-checked'],
+            'combobox' => ['aria-expanded'],
+            'scrollbar' => ['aria-controls', 'aria-valuenow', 'aria-valuemax', 'aria-valuemin', 'aria-orientation'],
+            'spinbutton' => ['aria-valuenow', 'aria-valuemax', 'aria-valuemin'],
+            'switch' => ['aria-checked'],
+            'meter' => ['aria-valuenow'],
+            'separator' => ['aria-valuenow'] // strictly when focusable, but we check if the role is present
+        ];
+
+        foreach ($roles as $role) {
+            if (isset($requiredMap[$role])) {
+                $missingAttrs = [];
+                foreach ($requiredMap[$role] as $reqAttr) {
+                    if (!$element->hasAttribute($reqAttr)) {
+                        $missingAttrs[] = $reqAttr;
+                    }
+                }
+
+                if (!empty($missingAttrs)) {
+                    // Specific case: separator without tabindex is not focusable and doesn't require aria-valuenow in some contexts
+                    if ($role === 'separator' && !$element->hasAttribute('tabindex')) {
+                        continue;
+                    }
+
+                    $missingStr = implode(', ', $missingAttrs);
+                    return $this->createViolation(
+                        $element,
+                        "ARIA role '{$role}' eksik zorunlu niteliklere sahip: {$missingStr}.",
+                        "Belirtilen ARIA rolü için zorunlu olan {$missingStr} niteliklerini ekleyin."
+                    );
+                }
+            }
+        }
+
+        return null;
+    }
+}