perf: optimize splash screen loading time (parallel map data + JWT role extraction instead of db query)

frontend/src/views/SplashScreen.vue

@@ -69,13 +69,9 @@ async function navigate() {
     return
   }
 
-  const { data: profile } = await supabase
-    .from('users')
-    .select('role')
-    .eq('id', session.user.id)
-    .single()
+  // Get the role directly from the JWT to avoid slow database queries
+  const role = session.user?.user_metadata?.role?.toUpperCase() || 'PASSENGER'
   
-  const role = profile?.role?.toUpperCase()
   if (role === 'ADMIN') router.replace('/admin')
   else if (role === 'DRIVER') router.replace('/driver')
   else if (role === 'PROMOTER') router.replace('/promoter')
@@ -83,13 +79,17 @@ async function navigate() {
 }
 
 async function performInitializationTasks() {
-  statusMessage.value = 'Verificando sesión...'
+  statusMessage.value = 'Verificando datos...'
 
-  statusMessage.value = 'Cargando datos de rutas...'
-  try { await routeStore.loadRoutes() } catch (e) { console.error(e) }
-
-  statusMessage.value = 'Cargando paradas...'
-  try { await busStopStore.loadBusStops() } catch (e) { console.error(e) }
+  // Load essential map data in parallel to save time
+  try {
+    await Promise.all([
+      routeStore.loadRoutes(),
+      busStopStore.loadBusStops()
+    ])
+  } catch (e) {
+    console.error('Error pre-loading map data', e)
+  }
 
   statusMessage.value = 'Listo para usar'
 }