first commit

src/modules/likes/dto/toggle-like.dto.ts

@@ -0,0 +1,12 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsIn, IsMongoId } from 'class-validator';
+
+export class ToggleLikeDto {
+  @ApiProperty()
+  @IsMongoId()
+  targetId!: string;
+
+  @ApiProperty({ enum: ['post', 'comment'] })
+  @IsIn(['post', 'comment'])
+  targetType!: 'post' | 'comment';
+}