refactor(server): auth service (#1383)

* refactor: auth

* chore: tests

* Remove await on non-async method

* refactor: constants

* chore: remove extra async

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

server/libs/domain/src/auth/dto/change-password.dto.ts

@@ -0,0 +1,15 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsNotEmpty, IsString, MinLength } from 'class-validator';
+
+export class ChangePasswordDto {
+  @IsString()
+  @IsNotEmpty()
+  @ApiProperty({ example: 'password' })
+  password!: string;
+
+  @IsString()
+  @IsNotEmpty()
+  @MinLength(8)
+  @ApiProperty({ example: 'password' })
+  newPassword!: string;
+}