refactor(i18n): replace compiled .ts catalogs with direct .po imports

- Remove `lingui compile` / `i18n:compile` script — Vite and Metro LingUI plugins now compile `.po` files on the fly at dev/build time; no manual compile step needed
- Import `.po` files directly in `@sofa/i18n` (`./po/en.po` etc.) and add `po.d.ts` ambient module declaration so TypeScript accepts them
- Add `fallbackLocales: { default: "en" }` and `lineNumbers: false` to `lingui.config.ts`; prefix catalog paths with `<rootDir>` for correctness
- Derive `SupportedLocale` and `SUPPORTED_LOCALES` from `LOCALE_INFO` in `locales.ts` to eliminate the circular import between `index.ts` and `locales.ts`
- Update Crowdin config to use `project_id_env` instead of a hardcoded ID, drop `languages_mapping` (no longer needed), and add `preserve_hierarchy: true`
- Add a daily cron trigger (`0 6 * * *`) to the Crowdin GitHub Actions workflow and drop the now-redundant compile step from it
- Update docs and `AGENTS.md` to reflect that no compile step is required after `i18n:extract`

packages/i18n/scripts/claude.ts

@@ -530,16 +530,6 @@ if (!dryRun) {
     console.error("Extraction failed");
     process.exit(1);
   }
-
-  console.log("Compiling catalogs...");
-  const compile = Bun.spawn(["bun", "run", "i18n:compile"], {
-    stdout: "inherit",
-    stderr: "inherit",
-  });
-  if ((await compile.exited) !== 0) {
-    console.error("Catalog compilation failed");
-    process.exit(1);
-  }
 }
 
 console.log("Done!");

packages/i18n/src/index.ts

@@ -1,20 +1,20 @@
 import { i18n, type Messages } from "@lingui/core";
 
-import { messages as enMessages } from "./po/en";
+import type { SupportedLocale } from "./locales";
+import { messages as enMessages } from "./po/en.po";
 
-export const SUPPORTED_LOCALES = ["en", "fr", "de", "es", "it", "pt"] as const;
-export type SupportedLocale = (typeof SUPPORTED_LOCALES)[number];
+export { SUPPORTED_LOCALES, type SupportedLocale } from "./locales";
 
 // English always bundled — zero async on default locale
 i18n.load("en", enMessages);
 i18n.activate("en");
 
-const loaders: Record<string, () => Promise<{ messages: Messages }>> = {
-  fr: () => import("./po/fr"),
-  de: () => import("./po/de"),
-  es: () => import("./po/es"),
-  it: () => import("./po/it"),
-  pt: () => import("./po/pt"),
+const loaders: Record<Exclude<SupportedLocale, "en">, () => Promise<{ messages: Messages }>> = {
+  fr: () => import("./po/fr.po"),
+  de: () => import("./po/de.po"),
+  es: () => import("./po/es.po"),
+  it: () => import("./po/it.po"),
+  pt: () => import("./po/pt.po"),
 };
 
 export async function activateLocale(locale: SupportedLocale): Promise<void> {
@@ -22,12 +22,7 @@ export async function activateLocale(locale: SupportedLocale): Promise<void> {
     i18n.activate("en");
     return;
   }
-  const loader = loaders[locale];
-  if (!loader) {
-    i18n.activate("en");
-    return;
-  }
-  const { messages } = await loader();
+  const { messages } = await loaders[locale]();
   i18n.load(locale, messages);
   i18n.activate(locale);
 }

packages/i18n/src/locales.ts

@@ -1,16 +1,18 @@
-import type { SupportedLocale } from "./index";
-
 export interface LocaleInfo {
-  code: SupportedLocale;
+  code: string;
   name: string;
   nativeName: string;
 }
 
-export const LOCALE_INFO: LocaleInfo[] = [
+export const LOCALE_INFO = [
   { code: "en", name: "English", nativeName: "English" },
   { code: "fr", name: "French", nativeName: "Fran\u00e7ais" },
   { code: "de", name: "German", nativeName: "Deutsch" },
   { code: "es", name: "Spanish", nativeName: "Espa\u00f1ol" },
   { code: "it", name: "Italian", nativeName: "Italiano" },
   { code: "pt", name: "Portuguese", nativeName: "Portugu\u00eas" },
-];
+] as const satisfies readonly LocaleInfo[];
+
+export type SupportedLocale = (typeof LOCALE_INFO)[number]["code"];
+
+export const SUPPORTED_LOCALES = LOCALE_INFO.map((l) => l.code) as SupportedLocale[];

packages/i18n/src/po.d.ts

@@ -0,0 +1,4 @@
+declare module "*.po" {
+  import type { Messages } from "@lingui/core";
+  export const messages: Messages;
+}

packages/i18n/src/test-utils.tsx

@@ -2,7 +2,7 @@ import { i18n } from "@lingui/core";
 import { I18nProvider } from "@lingui/react";
 import type { ReactNode } from "react";
 
-import { messages } from "./po/en";
+import { messages } from "./po/en.po";
 
 i18n.load("en", messages);
 i18n.activate("en");