fix: corregir race condition en favoritos con Supabase INITIAL_SESSION

frontend/src/views/FavoritesView.vue

@@ -1,7 +1,8 @@
 <script setup lang="ts">
-import { ref, computed, onMounted } from 'vue'
+import { ref, computed, watch } from 'vue'
 import { useRouter } from 'vue-router'
 import { useFavoritesStore } from '@/stores/favorites'
+import { useAuthStore } from '@/stores/auth'
 import { useI18n } from 'vue-i18n'
 import { getImageUrl as utilGetImageUrl } from '@/utils/imageUrl'
 import LoadingBranded from '@/components/common/LoadingBranded.vue'
@@ -9,6 +10,7 @@ import LoadingBranded from '@/components/common/LoadingBranded.vue'
 const router = useRouter()
 const { t } = useI18n()
 const favoritesStore = useFavoritesStore()
+const authStore = useAuthStore()
 const selectedFilter = ref('all')
 
 const filters = computed(() => [
@@ -20,9 +22,16 @@ const filters = computed(() => [
   { key: 'stops',     label: t('navigation.routes'),  icon: 'location_on' }, // Reusing navigation.routes or adding a specific one
 ])
 
-onMounted(async () => {
-  await favoritesStore.loadFavorites()
-})
+// Mismo patrón que FavoriteButton: esperar a que Supabase complete INITIAL_SESSION
+watch(
+  () => authStore.isAuthenticated,
+  (authenticated) => {
+    if (authenticated) {
+      favoritesStore.loadFavorites()
+    }
+  },
+  { immediate: true }
+)
 
 function getImageUrl(path?: string) {
   return utilGetImageUrl(path, 'business')