feat(badges): 添加用户勋章系统，支持睡眠挑战勋章自动授予

实现完整的用户勋章功能模块：
- 新增 BadgeConfig 和 UserBadge 数据模型，支持勋章配置和用户勋章管理
- 新增 BadgeService 服务，提供勋章授予、查询、展示状态管理等核心功能
- 在挑战服务中集成勋章授予逻辑，完成首次睡眠打卡授予 goodSleep 勋章，完成睡眠挑战授予 sleepChallengeMonth 勋章
- 新增用户勋章相关接口：获取用户勋章列表、获取可用勋章列表、标记勋章已展示
- 支持勋章分类（睡眠、运动、饮食等）、排序、启用状态管理
- 支持勋章来源追踪（挑战、系统、手动授予）和元数据记录

src/users/dto/badge.dto.ts

@@ -0,0 +1,157 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsOptional, IsString, IsBoolean, IsDateString, IsNotEmpty } from 'class-validator';
+import { BaseResponseDto } from '../../base.dto';
+
+// 勋章基本信息
+export class BadgeInfoDto {
+  @ApiProperty({ description: '勋章代码', example: 'goodSleep' })
+  code: string;
+
+  @ApiProperty({ description: '勋章名称', example: '好眠达人' })
+  name: string;
+
+  @ApiProperty({ description: '勋章描述', example: '完成首次睡眠挑战' })
+  description: string;
+
+  @ApiProperty({ description: '勋章图片URL' })
+  imageUrl: string;
+
+  @ApiProperty({ description: '勋章分类', example: 'sleep' })
+  category: string;
+
+  @ApiProperty({ description: '排序顺序', example: 1 })
+  sortOrder: number;
+}
+
+// 用户勋章信息
+export class UserBadgeDto {
+  @ApiProperty({ description: '记录ID', example: 1 })
+  id: number;
+
+  @ApiProperty({ description: '勋章代码', example: 'goodSleep' })
+  code: string;
+
+  @ApiProperty({ description: '勋章名称', example: '好眠达人' })
+  name: string;
+
+  @ApiProperty({ description: '勋章描述', example: '完成首次睡眠挑战' })
+  description: string;
+
+  @ApiProperty({ description: '勋章图片URL' })
+  imageUrl: string;
+
+  @ApiProperty({ description: '勋章分类', example: 'sleep' })
+  category: string;
+
+  @ApiProperty({ description: '获得时间' })
+  awardedAt: Date;
+
+  @ApiProperty({ description: '授予来源', example: 'challenge' })
+  source: string;
+
+  @ApiProperty({ description: '来源ID（如挑战ID）', required: false })
+  sourceId?: string;
+
+  @ApiProperty({ description: '元数据', required: false })
+  metadata?: Record<string, any>;
+
+  @ApiProperty({ description: '是否已展示过', example: false })
+  isShow: boolean;
+}
+
+// 可用勋章信息（包含是否已获得）
+export class AvailableBadgeDto extends BadgeInfoDto {
+  @ApiProperty({ description: '是否已获得', example: false })
+  isAwarded: boolean;
+
+  @ApiProperty({ description: '获得时间（如果已获得）', required: false })
+  awardedAt?: Date;
+
+  @ApiProperty({ description: '是否已展示过（如果已获得）', required: false })
+  isShow?: boolean;
+}
+
+// 获取用户勋章列表响应
+export class GetUserBadgesResponseDto implements BaseResponseDto<{
+  badges: UserBadgeDto[];
+  total: number;
+}> {
+  @ApiProperty({ description: '响应状态码', example: 0 })
+  code: number;
+
+  @ApiProperty({ description: '响应消息', example: 'success' })
+  message: string;
+
+  @ApiProperty({
+    description: '用户勋章数据',
+    example: {
+      badges: [
+        {
+          id: 1,
+          code: 'goodSleep',
+          name: '好眠达人',
+          description: '完成首次睡眠挑战',
+          imageUrl: 'https://example.com/badge.png',
+          category: 'sleep',
+          awardedAt: '2025-01-14T07:00:00Z',
+          source: 'challenge',
+          sourceId: 'challenge-uuid',
+        },
+      ],
+      total: 1,
+    },
+  })
+  data: {
+    badges: UserBadgeDto[];
+    total: number;
+  };
+}
+
+// 获取所有可用勋章响应
+export class GetAvailableBadgesResponseDto implements BaseResponseDto<AvailableBadgeDto[]> {
+  @ApiProperty({ description: '响应状态码', example: 0 })
+  code: number;
+
+  @ApiProperty({ description: '响应消息', example: 'success' })
+  message: string;
+
+  @ApiProperty({
+    description: '所有可用勋章列表',
+    example: [
+      {
+        code: 'goodSleep',
+        name: '好眠达人',
+        description: '完成首次睡眠挑战',
+        imageUrl: 'https://example.com/badge.png',
+        category: 'sleep',
+        sortOrder: 1,
+        isAwarded: true,
+        awardedAt: '2025-01-14T07:00:00Z',
+      },
+    ],
+  })
+  data: AvailableBadgeDto[];
+}
+
+// 标记勋章已展示请求
+export class MarkBadgeShownDto {
+  @ApiProperty({ description: '勋章代码', example: 'goodSleep' })
+  @IsString()
+  @IsNotEmpty()
+  badgeCode: string;
+}
+
+// 标记勋章已展示响应
+export class MarkBadgeShownResponseDto implements BaseResponseDto<{ success: boolean }> {
+  @ApiProperty({ description: '响应状态码', example: 0 })
+  code: number;
+
+  @ApiProperty({ description: '响应消息', example: 'success' })
+  message: string;
+
+  @ApiProperty({
+    description: '操作结果',
+    example: { success: true },
+  })
+  data: { success: boolean };
+}