fix: implement global app-refocus listener and data recovery pattern in critical views to prevent infinite loading after app suspension

frontend/src/views/SchedulesView.vue

@@ -144,8 +144,21 @@ function handleOutsideClick(e: MouseEvent) {
   if (!target.closest('.route-selector')) dropdownOpen.value = false
 }
 
+async function fetchData() {
+  await routeStore.loadRoutes()
+  if (localSelectedRouteId.value) {
+    await scheduleStore.loadRouteSchedules(localSelectedRouteId.value)
+  }
+}
+
+function handleRefocus() {
+  fetchData()
+}
+
 onMounted(async () => {
   analyticsService.logEvent({ event_name: 'screen_view', screen_name: 'Schedules' })
+  window.addEventListener('app-refocus', handleRefocus)
+  
   await routeStore.loadRoutes()
   document.addEventListener('click', handleOutsideClick)
 
@@ -177,6 +190,7 @@ const stopWatch = watch(
 onUnmounted(() => {
   stopWatch()
   document.removeEventListener('click', handleOutsideClick)
+  window.removeEventListener('app-refocus', handleRefocus)
 })
 </script>