Update: 将子项目从 submodule 转为完整内容

- 移除 GovAI, nomifun-tauri, 算力盒子 的 submodule 引用
- 添加所有子项目的完整源代码
- 保留原始 .git 为 .git.bak 备份

nomifun-tauri/ui/src/common/config/i18n.test.ts

@@ -0,0 +1,24 @@
+/**
+ * @license
+ * Copyright 2025-2026 NomiFun (nomifun.com)
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, expect, test } from 'bun:test';
+import { DEFAULT_LANGUAGE, SUPPORTED_LANGUAGES, normalizeLanguageCode } from './i18n';
+
+describe('i18n language support', () => {
+  test('only exposes simplified Chinese and English as supported app languages', () => {
+    expect(SUPPORTED_LANGUAGES).toEqual(['zh-CN', 'en-US']);
+    expect(DEFAULT_LANGUAGE).toBe('en-US');
+  });
+
+  test('normalizes removed locales away from their old language codes', () => {
+    expect(normalizeLanguageCode('zh-TW')).toBe('zh-CN');
+    expect(normalizeLanguageCode('ja-JP')).toBe(DEFAULT_LANGUAGE);
+    expect(normalizeLanguageCode('ko-KR')).toBe(DEFAULT_LANGUAGE);
+    expect(normalizeLanguageCode('tr-TR')).toBe(DEFAULT_LANGUAGE);
+    expect(normalizeLanguageCode('ru-RU')).toBe(DEFAULT_LANGUAGE);
+    expect(normalizeLanguageCode('uk-UA')).toBe(DEFAULT_LANGUAGE);
+  });
+});