Revert "cors 설정을 스프링 코드에서 제거"

backend/src/main/java/codezap/global/cors/WebCorsConfiguration.java

@@ -0,0 +1,19 @@
+package codezap.global.cors;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebCorsConfiguration implements WebMvcConfigurer {
+
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowCredentials(true)
+                .allowedOriginPatterns("https://*.code-zap.com")
+                .allowedOrigins("https://code-zap.com")
+                .allowedMethods("*")
+                .exposedHeaders("*");
+    }
+}