feat: User services

src/auth/auth.service.ts

@@ -1,4 +1,13 @@
 import { Injectable } from '@nestjs/common';
+import { Public } from './decorators';
 
 @Injectable()
-export class AuthService {}
+@Public()
+export class AuthService {
+  async login() {}
+
+  async signup() {}
+
+  @Public(false)
+  async logout() {}
+}