refactor(store-service): refactoring user-id hardcode

store-service에 user-id 하드코딩 된 코드를 access token에 담긴 userid로 변경

user-service/src/main/java/com/justpickup/userservice/UserServiceApplication.java

@@ -8,6 +8,8 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
 import org.springframework.context.annotation.Bean;
 
+import java.util.List;
+
 @SpringBootApplication
 @EnableEurekaClient
 public class UserServiceApplication {