Fix landing 500 from invalid Asia/Esfahan timezone.

Normalize Iran city aliases to Asia/Tehran, harden the clock, and make settings timezone a safe select.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/landing/pages/index.vue

@@ -29,7 +29,10 @@
 </template>
 
 <script setup lang="ts">
-const { data: site } = await useAsyncData("public-site", () => fetchPublicSite());
+const { data: site } = await useAsyncData("public-site", () => fetchPublicSite(), {
+  // always refetch so admin edits show up after refresh
+  getCachedData: () => undefined,
+});
 const homePage = computed(() => site.value?.pages?.find((p: any) => p.key === "home"));
 applyPageSeo(homePage.value?.seo);
 </script>