refactor: split telegram delivery and unify media/frontmatter/i18n pipelines

src/i18n/registry.test.ts

@@ -0,0 +1,30 @@
+import { describe, expect, it } from "vitest";
+import {
+  DEFAULT_LOCALE,
+  SUPPORTED_LOCALES,
+  loadLazyLocaleTranslation,
+  resolveNavigatorLocale,
+} from "../../ui/src/i18n/lib/registry.ts";
+
+describe("ui i18n locale registry", () => {
+  it("lists supported locales", () => {
+    expect(SUPPORTED_LOCALES).toEqual(["en", "zh-CN", "zh-TW", "pt-BR", "de"]);
+    expect(DEFAULT_LOCALE).toBe("en");
+  });
+
+  it("resolves browser locale fallbacks", () => {
+    expect(resolveNavigatorLocale("de-DE")).toBe("de");
+    expect(resolveNavigatorLocale("pt-PT")).toBe("pt-BR");
+    expect(resolveNavigatorLocale("zh-HK")).toBe("zh-TW");
+    expect(resolveNavigatorLocale("en-US")).toBe("en");
+  });
+
+  it("loads lazy locale translations from the registry", async () => {
+    const de = await loadLazyLocaleTranslation("de");
+    const zhCN = await loadLazyLocaleTranslation("zh-CN");
+
+    expect(de?.common?.health).toBe("Status");
+    expect(zhCN?.common?.health).toBe("健康状况");
+    expect(await loadLazyLocaleTranslation("en")).toBeNull();
+  });
+});