chore: Nuxt 4 upgrade (#7426)

frontend/app/pages/index.vue

@@ -0,0 +1,55 @@
+<template>
+  <div />
+</template>
+
+<script setup lang="ts">
+import useDefaultActivity from "~/composables/use-default-activity";
+import { useUserActivityPreferences } from "~/composables/use-users/preferences";
+import { useAsyncKey } from "~/composables/use-utils";
+import type { AppInfo, AppStartupInfo } from "~/lib/api/types/admin";
+
+definePageMeta({
+  layout: "blank",
+});
+
+const auth = useMealieAuth();
+const { $axios } = useNuxtApp();
+const router = useRouter();
+const activityPreferences = useUserActivityPreferences();
+const { getDefaultActivityRoute } = useDefaultActivity();
+const groupSlug = computed(() => auth.user.value?.groupSlug);
+
+async function redirectPublicUserToDefaultGroup() {
+  const { data } = await $axios.get<AppInfo>("/api/app/about");
+  if (data?.defaultGroupSlug) {
+    router.push(`/g/${data.defaultGroupSlug}`);
+  }
+  else {
+    router.push("/login");
+  }
+}
+
+useAsyncData(useAsyncKey(), async () => {
+  if (groupSlug.value) {
+    const data = await $axios.get<AppStartupInfo>("/api/app/about/startup-info");
+    const isDemo = data.data.isDemo;
+    const isFirstLogin = data.data.isFirstLogin;
+    const defaultActivityRoute = getDefaultActivityRoute(
+      activityPreferences.value.defaultActivity,
+      groupSlug.value,
+    );
+    if (!isDemo && isFirstLogin && auth.user.value?.admin) {
+      router.push("/admin/setup");
+    }
+    else if (defaultActivityRoute) {
+      router.push(defaultActivityRoute);
+    }
+    else {
+      router.push(`/g/${groupSlug.value}`);
+    }
+  }
+  else {
+    redirectPublicUserToDefaultGroup();
+  }
+});
+</script>