fix(auth): Aliyun SMS 用 require() 替代 import() 避免 TS2307

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/services/auth-service/src/infrastructure/sms/aliyun-sms.provider.ts

@@ -70,14 +70,11 @@ export class AliyunSmsProvider implements ISmsProvider {
   private async getClient() {
     if (this.client) return this.client;
 
-    // 动态导入 (仅生产环境需要, 开发环境不安装这些包)
+    // 动态 require (仅 SMS_ENABLED=true 时调用, 开发环境不安装这些包)
     // eslint-disable-next-line @typescript-eslint/no-var-requires
-    const { default: Dysmsapi20170525 } = await (import(
-      /* webpackIgnore: true */ '@alicloud/dysmsapi20170525'
-    ) as any);
-    const { Config } = await (import(
-      /* webpackIgnore: true */ '@alicloud/openapi-client'
-    ) as any);
+    const Dysmsapi20170525 = require('@alicloud/dysmsapi20170525').default;
+    // eslint-disable-next-line @typescript-eslint/no-var-requires
+    const { Config } = require('@alicloud/openapi-client');
 
     const config = new Config({
       accessKeyId: process.env.ALIYUN_ACCESS_KEY_ID,