fix: session-event.handler 메서드명 객체에 맞게 수정

Author: mintaek22

DBManager/src/session/session-event.handler.ts

@@ -10,19 +10,19 @@ export class SessionEventHandler implements OnModuleInit {
   ) {}
 
   onModuleInit() {
-    this.createDB();
-    this.removeDB();
+    this.appendEventHandler();
+    this.expiredEventHandler();
   }
 
-  private createDB() {
+  private appendEventHandler() {
     const channel = '__keyspace@0__:APPEND';
     this.redisService.subscribeSession(channel, async (sessionId) => {
       const pod = await this.redisService.hgetSession(sessionId, 'pod');
       this.userDBService.initUserDatabase(pod, sessionId);
     });
   }
 
-  private removeDB() {
+  private expiredEventHandler() {
     const channel = '__keyspace@0__:EXPIRE';
     this.redisService.subscribeSession(channel, async (sessionId) => {
       const pod = await this.redisService.hgetSession(sessionId, 'pod');