Enable auth-service/api-gateway on production, build their images in CI

apps/api-gateway/src/proxy/proxy.module.ts

@@ -0,0 +1,7 @@
+import { Module } from "@nestjs/common";
+import { AuthProxyController } from "./auth-proxy.controller";
+
+@Module({
+  controllers: [AuthProxyController],
+})
+export class ProxyModule {}