fix: 修复后端 CI 检查与测试

apps/server/src/ai-config/ai-config.service.spec.ts

@@ -8,6 +8,16 @@ import {
   randomBytes,
 } from 'node:crypto';
 
+jest.mock('node:dns', () => ({
+  lookup: jest.fn(
+    (
+      _hostname: string,
+      _options: unknown,
+      callback: (error: null, addresses: Array<{ address: string; family: number }>) => void,
+    ) => callback(null, [{ address: '203.0.113.10', family: 4 }]),
+  ),
+}));
+
 import { AiConfigService } from './ai-config.service';
 import { AiConfig, AiProvider, SINGLETON_KEY } from './ai-config.entity';
 
@@ -105,6 +115,8 @@ describe('AiConfigService', () => {
   afterEach(() => {
     delete process.env.AI_CONFIG_ENCRYPTION_KEY;
     delete process.env.AI_API_KEY;
+    delete process.env.AI_ALLOW_PRIVATE_BASE_URL;
+    delete process.env.NODE_ENV;
   });
 
   // ── Encryption ────────────────────────────────────────────────────────