Add backend error logging and increase frontend timeout

frontend/src/views/AdminRoutes.vue

@@ -354,7 +354,12 @@ async function confirmCreateRoute() {
         isCreating.value = false
     } catch (err: any) {
         console.error('Error creating route:', err)
-        alert('No se pudo crear la ruta: ' + (err.response?.data?.detail || err.message))
+        const errorMsg = err.response?.data?.detail 
+            || err.response?.data?.message 
+            || err.message 
+            || 'Error desconocido'
+        const errorDetail = err.response ? `Status: ${err.response.status}` : 'No hubo respuesta del servidor (Network Error)'
+        alert(`No se pudo crear la ruta: ${errorMsg}\n\nDetalle: ${errorDetail}`)
     }
 }