feat: multi-module iteration

server/dukang-api/src/common/interceptors/response.interceptor.ts

@@ -0,0 +1,20 @@
+import {
+  CallHandler,
+  ExecutionContext,
+  Injectable,
+  NestInterceptor,
+} from '@nestjs/common';
+import { Observable, map } from 'rxjs';
+
+@Injectable()
+export class ResponseInterceptor implements NestInterceptor {
+  intercept(_context: ExecutionContext, next: CallHandler): Observable<unknown> {
+    return next.handle().pipe(
+      map((data) => ({
+        code: 0,
+        message: 'ok',
+        data: data ?? null,
+      })),
+    );
+  }
+}