feat: 支持关卡配置分享

src/modules/share/dto/create-share.dto.ts

@@ -0,0 +1,27 @@
+import { ApiProperty } from '@nestjs/swagger';
+import {
+  IsString,
+  IsNotEmpty,
+  MaxLength,
+  ArrayMinSize,
+  ArrayMaxSize,
+  IsArray,
+} from 'class-validator';
+
+export class CreateShareDto {
+  @ApiProperty({ description: '分享标题', example: '我的挑战' })
+  @IsString()
+  @IsNotEmpty({ message: '标题不能为空' })
+  @MaxLength(100, { message: '标题不能超过100个字符' })
+  title: string;
+
+  @ApiProperty({
+    description: '6个关卡ID',
+    example: ['id1', 'id2', 'id3', 'id4', 'id5', 'id6'],
+  })
+  @IsArray()
+  @ArrayMinSize(6, { message: '需要恰好6个关卡' })
+  @ArrayMaxSize(6, { message: '需要恰好6个关卡' })
+  @IsString({ each: true })
+  levelIds: string[];
+}