feat: Add TokenInfo (#3)

Author: youjin09222

server-toy-project/src/main/java/com/gdsc_teamb/servertoyproject/jwt/TokenInfo.java

@@ -0,0 +1,15 @@
+package com.gdsc_teamb.servertoyproject.jwt;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+
+@Builder
+@Data
+@AllArgsConstructor
+// 클라이언트에 토큰을 보내기 위한 DTO
+public class TokenInfo {
+    private String grantType;
+    private String accessToken;
+    private String refreshToken;
+}

server-toy-project/src/main/resources/application.yml

@@ -17,4 +17,7 @@ spring:
       ddl-auto: update
     properties:
       hibernate:
-        format_sql: true
+        format_sql: true
+
+  jwt:
+    secret: VlwEyVBsYt9V7zq57TejMnVUyzblYcfPQye08f7MGVA9XkHa