fix(DesktopApplication): 修复Spring上下文初始化问题并清理无用代码

移除重复的SpringApplication.run调用，确保ConfigurableApplicationContext正确初始化。
将applicationContext声明为静态变量以供全局访问。
移除未使用的playwrightService字段和相关初始化代码。
保留JavaFX平台属性设置逻辑。
添加todo注释用于后续网络上报接口初始化。

src/main/java/com/fantaibao/DesktopApplication.java

@@ -14,26 +14,22 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.ConfigurableApplicationContext;
 
-//@SpringBootApplication
+@SpringBootApplication
 public class DesktopApplication extends Application {
 
-    private TextArea textArea;
-    private ConfigurableApplicationContext applicationContext;
-    private PlaywrightService playwrightService;
+    private static ConfigurableApplicationContext applicationContext;
 
     public static void main(String[] args) {
         // 设置JavaFX系统属性
         System.setProperty("javafx.application.platform", "egl");
-        SpringApplication.run(DesktopApplication.class, args);
+        applicationContext = SpringApplication.run(DesktopApplication.class, args);
         launch(args);
     }
 
     @Override
     public void init() throws Exception {
         super.init();
-        applicationContext = (ConfigurableApplicationContext) SpringApplication.run(DesktopApplication.class);
-        //playwrightService = applicationContext.getBean(PlaywrightService.class);
-        playwrightService = new PlaywrightService();
+        // todo 初始化应用程序网络上报接口
     }
 
     @Override