[Init] Initial commit - NetMesh terminal manager

infrastructure/config/i18n.ts

@@ -0,0 +1,30 @@
+export type LocaleOption = {
+  id: string;
+  label: string;
+};
+
+export const DEFAULT_UI_LOCALE = 'en';
+
+// Add new languages by appending to this list and providing message dictionaries.
+export const SUPPORTED_UI_LOCALES: LocaleOption[] = [
+  { id: 'en', label: 'English' },
+  { id: 'es', label: 'Español' },
+  { id: 'ru', label: 'Русский' },
+  { id: 'zh-CN', label: '简体中文' },
+  { id: 'zh-TW', label: '繁體中文' },
+];
+
+const isSupportedLocale = (locale: string): boolean => {
+  return SUPPORTED_UI_LOCALES.some((l) => l.id === locale);
+};
+
+export const resolveSupportedLocale = (locale: string): string => {
+  if (isSupportedLocale(locale)) return locale;
+  const base = locale.split('-')[0] || locale;
+  const baseExact = SUPPORTED_UI_LOCALES.find((l) => l.id === base)?.id;
+  if (baseExact) return baseExact;
+  const basePrefix = SUPPORTED_UI_LOCALES.find((l) => l.id.startsWith(`${base}-`))?.id;
+  if (basePrefix) return basePrefix;
+  return DEFAULT_UI_LOCALE;
+};
+