Cambios esteticos y de ping para el servidor

src/main/index.ts

@@ -4,7 +4,6 @@ import { electronApp, optimizer, is } from "@electron-toolkit/utils";
 import icon from "../../resources/icon.png?asset";
 import { NfcService } from "../services/NfcService";
 
-let nfcService: NfcService | null = null;
 
 function createWindow(): void {
     // Create the browser window.
@@ -20,7 +19,11 @@ function createWindow(): void {
         },
     });
 
-    nfcService = new NfcService();
+    new NfcService((event) => {
+        if (!mainWindow.isDestroyed()) {
+            mainWindow.webContents.send(`nfc:${event.type}`, event);
+        }
+    });
 
     mainWindow.on("ready-to-show", () => {
         mainWindow.show();
@@ -57,6 +60,19 @@ app.whenReady().then(() => {
     // IPC test
     ipcMain.on("ping", () => console.log("pong"));
 
+    ipcMain.handle("ping:url", async (_event, url: string) => {
+        try {
+            const response = await fetch(url, {
+                method: "HEAD",
+                signal: AbortSignal.timeout(5000),
+            });
+            return response.ok;
+        } catch (error) {
+            console.error(`Ping failed for ${url}:`, error);
+            return false;
+        }
+    });
+
     createWindow();
 
     app.on("activate", function () {