🐛 fix: provider entity의 refresh token nullable로 변경

Author: asn6878

server/src/user/entity/provider.entity.ts

@@ -29,8 +29,9 @@ export class Provider extends BaseEntity {
 
   @Column({
     name: 'refresh_token',
+    nullable: true,
   })
-  refreshToken: string;
+  refreshToken: string | null;
 
   @CreateDateColumn({
     name: 'created_at',

server/src/user/service/oauth.service.ts

@@ -47,7 +47,7 @@ export class OAuthService {
 
     await this.saveOAuthUser(userInfo, {
       providerType,
-      refreshToken: tokenData.refresh_token,
+      refreshToken: tokenData.refresh_token || null,
     });
 
     const jwtPayload: Payload = {