feat: add 15 new WCAG rules, dynamic ARIA checks and bump version to v3.1.4

tests/Rules/OptgroupLabelTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace YakNet\AccessibilityConsole\Tests\Rules;
+
+use PHPUnit\Framework\TestCase;
+use YakNet\AccessibilityConsole\Core\Scanner;
+use YakNet\AccessibilityConsole\Rules\OptgroupLabel;
+
+class OptgroupLabelTest extends TestCase
+{
+    public function testFlagsOptgroupWithoutLabel(): void
+    {
+        $scanner = new Scanner();
+        $scanner->addRule(new OptgroupLabel());
+
+        $violations = $scanner->scan('<select><optgroup><option>Option 1</option></optgroup></select>');
+        $this->assertCount(1, $violations);
+        $this->assertSame('WCAG_1_3_1_OPTGROUP_LABEL', $violations[0]->ruleId);
+    }
+
+    public function testPassesOptgroupWithLabel(): void
+    {
+        $scanner = new Scanner();
+        $scanner->addRule(new OptgroupLabel());
+
+        $violations = $scanner->scan('<select><optgroup label="Fruits"><option>Apple</option></optgroup></select>');
+        $this->assertCount(0, $violations);
+    }
+}