feat: 增强测试稳定性和可靠性

- 增加登录重试机制（最多3次），提高登录成功率
- 添加后端健康监控，每30秒检查一次后端状态
- 改进测试隔离，每个测试后清理localStorage和sessionStorage
- 优化错误处理和日志输出
- 添加globalTeardown函数，确保测试后正确清理资源

novalon-manage-web/e2e/pages/LoginPage.ts

@@ -22,38 +22,54 @@ export class LoginPage {
     await this.page.waitForLoadState('networkidle');
   }
 
-  async login(username: string, password: string) {
-    console.log('Starting login process...');
-    await this.usernameInput.fill(username);
-    await this.passwordInput.fill(password);
-    console.log('Filled username and password');
+  async login(username: string, password: string, maxRetries: number = 3) {
+    let lastError: Error | null = null;
     
-    await this.loginButton.click();
-    console.log('Clicked login button');
+    for (let attempt = 1; attempt <= maxRetries; attempt++) {
+      console.log(`Login attempt ${attempt}/${maxRetries}`);
+      
+      try {
+        await this.usernameInput.fill(username);
+        await this.passwordInput.fill(password);
+        console.log('Filled username and password');
+        
+        await this.loginButton.click();
+        console.log('Clicked login button');
 
-    try {
-      await this.page.waitForURL(/\/(dashboard|\/)$/, { timeout: 30000 });
-      console.log('Successfully navigated to dashboard or home');
-      await this.page.waitForLoadState('networkidle');
-      console.log('Network idle achieved');
-      await this.page.waitForTimeout(2000);
-      console.log('Wait completed');
-    } catch (error) {
-      console.log('Login failed or timeout:', error);
-      const currentUrl = this.page.url();
-      console.log('Current URL:', currentUrl);
-      
-      const errorMessage = await this.getErrorMessage();
-      if (errorMessage) {
-        console.log('Login error message:', errorMessage);
+        await this.page.waitForURL(/\/(dashboard|\/)$/, { timeout: 30000 });
+        console.log('Successfully navigated to dashboard or home');
+        await this.page.waitForLoadState('networkidle');
+        console.log('Network idle achieved');
+        await this.page.waitForTimeout(2000);
+        console.log('Login completed successfully');
+        return;
+      } catch (error) {
+        lastError = error as Error;
+        console.log(`Login attempt ${attempt} failed:`, error);
+        
+        const currentUrl = this.page.url();
+        console.log('Current URL:', currentUrl);
+        
+        const errorMessage = await this.getErrorMessage();
+        if (errorMessage) {
+          console.log('Login error message:', errorMessage);
+        }
+        
+        const token = await this.page.evaluate(() => localStorage.getItem('token'));
+        console.log('Token in localStorage:', token ? 'exists' : 'not found');
+        
+        if (attempt < maxRetries) {
+          console.log(`Waiting 2 seconds before retry...`);
+          await this.page.waitForTimeout(2000);
+          
+          await this.goto();
+          console.log('Navigated back to login page for retry');
+        }
       }
-      
-      const token = await this.page.evaluate(() => localStorage.getItem('token'));
-      console.log('Token in localStorage:', token ? 'exists' : 'not found');
-      
-      await this.page.waitForTimeout(1000);
-      throw error;
     }
+    
+    console.log(`All ${maxRetries} login attempts failed`);
+    throw lastError || new Error('Login failed after all retries');
   }
 
   async getErrorMessage(): Promise<string | null> {