feat: add DiscordApp for voice control integration with UDP communication

main/main.cpp

@@ -20,6 +20,7 @@
 #include "ui/app_registry.h"
 #include "ui/apps/demo_app.h"
 #include "ui/apps/shutdown_app.h"
+#include "ui/apps/discord_app.h"
 #include <tick/lv_tick.h>
 #include "esp_lvgl_port.h"
 #include "lvgl.h"
@@ -125,6 +126,7 @@ void app_main(void) {
   // Each descriptor will create and register the app instance
   DemoAppDescriptor* demo_descriptor = new DemoAppDescriptor();
   ShutdownAppDescriptor* shutdown_descriptor = new ShutdownAppDescriptor();
+  DiscordAppDescriptor::instance(); // Use singleton pattern for Discord app
   ESP_LOGI(TAG, "Apps registered with AppRegistry\n");
 
   // Initialize UI Handler (will render app icons from registry)