feat(stealth): 增强指纹一致性并新增 creepjs 检测脚本

src/stealth.test.ts

@@ -51,4 +51,47 @@ describe('Stealth mode', () => {
     expect(signals.ownNavigator).toBe(false);
     expect(signals.ownPrototype).toBe(false);
   });
+
+  it('aligns navigator language with AGENT_BROWSER_LOCALE', async () => {
+    const previousLocale = process.env.AGENT_BROWSER_LOCALE;
+    process.env.AGENT_BROWSER_LOCALE = 'fr-FR';
+
+    try {
+      browser = new BrowserManager();
+      await browser.launch({ headless: true, stealth: true });
+
+      const languageSignals = await browser.getPage().evaluate(() => ({
+        language: navigator.language,
+        languages: navigator.languages,
+      }));
+
+      expect(languageSignals.language).toBe('fr-FR');
+      expect(languageSignals.languages).toEqual(['fr-FR', 'fr']);
+    } finally {
+      if (previousLocale === undefined) {
+        delete process.env.AGENT_BROWSER_LOCALE;
+      } else {
+        process.env.AGENT_BROWSER_LOCALE = previousLocale;
+      }
+    }
+  });
+
+  it('keeps worker and page userAgent free of HeadlessChrome tokens', async () => {
+    browser = new BrowserManager();
+    await browser.launch({ headless: true, stealth: true });
+
+    const userAgentSignals = await browser.getPage().evaluate(async () => {
+      const pageUA = navigator.userAgent;
+      const workerUA = await new Promise<string>((resolve) => {
+        const source = 'postMessage(navigator.userAgent);';
+        const blob = new Blob([source], { type: 'application/javascript' });
+        const worker = new Worker(URL.createObjectURL(blob));
+        worker.onmessage = (event) => resolve(String(event.data));
+      });
+      return { pageUA, workerUA };
+    });
+
+    expect(userAgentSignals.pageUA).not.toContain('HeadlessChrome');
+    expect(userAgentSignals.workerUA).not.toContain('HeadlessChrome');
+  });
 });