update

src/shared/locale.ts

@@ -0,0 +1,4 @@
+export type AppLocale = "en" | "zh";
+export const APP_LOCALES: readonly AppLocale[] = ["en", "zh"] as const;
+export const LOCALE_LABELS: Record<AppLocale, string> = { en: "English", zh: "中文" };
+export const DEFAULT_LOCALE: AppLocale = "en";