fix: AdminGuard 범위 수정

backend/src/admin/admin.module.ts

@@ -1,9 +1,10 @@
-import { Module } from '@nestjs/common';
+import { Module, UseGuards } from '@nestjs/common';
 import { AdminBannerModule } from './banner/banner.module';
-import { RouterModule, APP_GUARD } from '@nestjs/core';
+import { RouterModule } from '@nestjs/core';
 import { AdminGuard } from '@src/admin/guard/AdminGuard';
 import { AuthModule } from '@src/auth/auth.module';
 
+@UseGuards(AdminGuard)
 @Module({
   imports: [
     AuthModule,
@@ -21,11 +22,5 @@ import { AuthModule } from '@src/auth/auth.module';
       },
     ]),
   ],
-  providers: [
-    {
-      provide: APP_GUARD,
-      useClass: AdminGuard,
-    },
-  ],
 })
 export class AdminModule {}