Integración OneSignal y configuración HTTP nativo

- Configurar OneSignal con nuevo App ID
- Agregar network_security_config.xml para permitir HTTP
- Habilitar CapacitorHttp nativo en capacitor.config.ts
- Actualizar SDK a Android 34
- Configurar API_URL fija (192.168.10.207:8080)
- Agregar onesignal.service.ts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

capacitor.config.ts

@@ -7,6 +7,11 @@ const config: CapacitorConfig = {
   server: {
     androidScheme: 'https'
   },
+  plugins: {
+    CapacitorHttp: {
+      enabled: true
+    }
+  },
   cordova: {
     preferences: {
       ScrollEnabled: 'false',