✨ feat(i18n): 完善多模块多语言适配与发版验证

扩展前后端多语言文案与共享词典。增加多模块 i18n 回归测试与 guard。收口外部 SQL 菜单和弹窗多语言文案。

frontend/src/utils/secureConfigBootstrap.test.ts

@@ -1,5 +1,7 @@
 import { describe, expect, it, vi } from 'vitest';
+import { readFileSync } from 'node:fs';
 
+import { t as translate } from '../i18n';
 import { LEGACY_PERSIST_KEY } from './legacyConnectionStorage';
 import {
   bootstrapSecureConfig,
@@ -37,6 +39,8 @@ const legacyPayload = JSON.stringify({
   },
 });
 
+const en = (key: string) => translate(key, undefined, 'en-US');
+
 const createMemoryStorage = () => {
   const data = new Map<string, string>();
   return {
@@ -99,6 +103,46 @@ describe('secureConfigBootstrap', () => {
     ]));
   });
 
+  it('uses catalog text for local legacy security update issues when a translator is provided', async () => {
+    const args = createBaseArgs();
+
+    const result = await bootstrapSecureConfig({
+      ...args,
+      t: en,
+      backend: {
+        GetSecurityUpdateStatus: vi.fn().mockResolvedValue({
+          overallStatus: 'not_detected',
+          summary: { total: 0, updated: 0, pending: 0, skipped: 0, failed: 0 },
+          issues: [],
+        }),
+      },
+    });
+
+    expect(result.status.issues).toEqual(expect.arrayContaining([
+      expect.objectContaining({
+        scope: 'connection',
+        title: 'Legacy',
+        message: "This connection is still saved in the current app's local configuration. After the security update completes, it will be moved to the new secure storage.",
+      }),
+      expect.objectContaining({
+        scope: 'global_proxy',
+        title: 'Global Proxy',
+        message: "Global proxy settings are still saved in the current app's local configuration. After the security update completes, they will be moved to the new secure storage.",
+      }),
+    ]));
+  });
+
+  it('keeps local legacy security update text out of production source literals', () => {
+    const source = readFileSync(new URL('./secureConfigBootstrap.ts', import.meta.url), 'utf8');
+
+    expect(source).not.toContain('该连接仍保存在当前应用的本地配置中');
+    expect(source).not.toContain('全局代理仍保存在当前应用的本地配置中');
+    expect(source).not.toContain('安全更新能力不可用');
+    expect(source).toContain('security_update.bootstrap.legacy.connection.message');
+    expect(source).toContain('security_update.bootstrap.legacy.global_proxy.message');
+    expect(source).toContain('security_update.error.capability_unavailable');
+  });
+
   it('shows intro when legacy sensitive items exist and backend status is pending', async () => {
     const args = createBaseArgs();