feat: align frontend languages with posts api

src/i18nLanguages.ts

@@ -0,0 +1,17 @@
+import type { Lang } from "./i18n";
+
+export const LANG_OPTIONS: { code: Lang; label: string }[] = [
+  { code: "zh", label: "中文" },
+  { code: "en", label: "English" },
+  { code: "ja", label: "日本語" },
+  { code: "ko", label: "한국어" },
+  { code: "vi", label: "Tiếng Việt" },
+  { code: "id", label: "Bahasa Indonesia" },
+  { code: "ms", label: "Bahasa Melayu" },
+];
+
+export function languageLabel(t: (key: string) => string, code: string) {
+  if (!code) return t("filterLanguageAll");
+  const label = t(`lang_${code}`);
+  return label === `lang_${code}` ? code : label;
+}