feat: 添加Cloudflare Access支持，允许通过请求头传递Client ID和Client Secret

cmd/autodiscovery.go

@@ -120,6 +120,12 @@ func registerWithAutoDiscovery() error {
 	// 设置请求头
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", flags.AutoDiscoveryKey))
+	
+	// 添加Cloudflare Access头部
+	if flags.CFAccessClientID != "" && flags.CFAccessClientSecret != "" {
+		req.Header.Set("CF-Access-Client-Id", flags.CFAccessClientID)
+		req.Header.Set("CF-Access-Client-Secret", flags.CFAccessClientSecret)
+	}
 
 	// 发送请求
 	client := &http.Client{}