refactor: application.yml metrics 추가

server/src/main/resources/application.yml

@@ -39,14 +39,19 @@ management:
   endpoints:
     web:
       exposure:
-        include: logfile
+        include: logfile, metrics
 
 logging:
   level:
     root: debug
     org.springframework.web: debug
     server.haengdong: debug
 
+  file:
+    name: logs/spring-boot-application.log
+    path: logs
+  config: classpath:logback-spring.xml
+
 server:
   servlet:
     encoding: