Initial WhaleTown V2 backend

src/business/player/dto/update_player_appearance.dto.ts

@@ -0,0 +1,13 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsString, Length, Matches } from 'class-validator';
+
+export class UpdatePlayerAppearanceDto {
+  @ApiProperty({
+    description: '要穿戴的角色皮肤ID',
+    example: 'classic_whale',
+  })
+  @IsString({ message: '皮肤ID必须是字符串' })
+  @Length(1, 100, { message: '皮肤ID长度需在1-100字符之间' })
+  @Matches(/^[A-Za-z0-9_:-]+$/, { message: '皮肤ID格式不正确' })
+  skin_id!: string;
+}