fix: use browser.newContext() for axe-core/playwright compatibility

scripts/utils/axe-runner.js

@@ -5,7 +5,8 @@ const path = require('path');
 
 async function runAxeTest(url, pageName) {
   const browser = await chromium.launch();
-  const page = await browser.newPage();
+  const context = await browser.newContext();
+  const page = await context.newPage();
   const results = [];
 
   try {
@@ -38,10 +39,12 @@ async function runAxeTest(url, pageName) {
 
     console.log(`  ✅ 扫描完成: ${violations.length} 个违规, ${passes} 个通过, ${incomplete} 个未完成`);
 
+    await context.close();
     await browser.close();
     return results[0];
 
   } catch (error) {
+    await context.close();
     await browser.close();
     throw new Error(`可访问性测试失败: ${error.message}`);
   }