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/challenges/challenges.service.ts

@@ -1,6 +1,6 @@
 import { Injectable, NotFoundException, BadRequestException, ConflictException, Inject } from '@nestjs/common';
 import { InjectModel } from '@nestjs/sequelize';
-import { Challenge, ChallengeStatus } from './models/challenge.model';
+import { Challenge, ChallengeStatus, ChallengeType } from './models/challenge.model';
 import { ChallengeParticipant, ChallengeParticipantStatus } from './models/challenge-participant.model';
 import { ChallengeProgressReport } from './models/challenge-progress-report.model';
 import { UpdateChallengeProgressDto } from './dto/update-challenge-progress.dto';
@@ -13,6 +13,8 @@ import * as dayjs from 'dayjs';
 import { User } from '../users/models/user.model';
 import { WINSTON_MODULE_PROVIDER } from 'nest-winston';
 import { Logger as WinstonLogger } from 'winston';
+import { BadgeService } from '../users/services/badge.service';
+import { BadgeSource } from '../users/models/user-badge.model';
 
 @Injectable()
 export class ChallengesService {
@@ -26,6 +28,7 @@ export class ChallengesService {
     private readonly participantModel: typeof ChallengeParticipant,
     @InjectModel(ChallengeProgressReport)
     private readonly progressReportModel: typeof ChallengeProgressReport,
+    private readonly badgeService: BadgeService,
   ) { }
 
   async getChallengesForUser(userId?: string): Promise<ChallengeListItemDto[]> {
@@ -432,10 +435,70 @@ export class ChallengesService {
       if (report.reportedValue >= reportCompletedValue && !dayjs(participant.lastProgressAt).isSame(dayjs(), 'd')) {
         participant.progressValue++
         participant.lastProgressAt = now;
+
+        // 🎖️ 检查是否为睡眠挑战且完成了第一次打卡，授予 goodSleep 勋章
+        if (challenge.type === ChallengeType.SLEEP) {
+          try {
+            await this.badgeService.awardBadge(userId, 'goodSleep', {
+              source: BadgeSource.CHALLENGE,
+              sourceId: challengeId,
+              metadata: {
+                challengeName: challenge.title,
+                challengeType: challenge.type,
+              },
+            });
+            this.winstonLogger.info('授予睡眠挑战勋章成功', {
+              context: 'reportProgress',
+              userId,
+              challengeId,
+              badgeCode: 'goodSleep',
+            });
+          } catch (error) {
+            // 勋章授予失败不应影响主流程，仅记录日志
+            this.winstonLogger.error('授予睡眠挑战勋章失败', {
+              context: 'reportProgress',
+              userId,
+              challengeId,
+              error: error instanceof Error ? error.message : '未知错误',
+            });
+          }
+        }
       }
 
       if (participant.progressValue >= (participant.challenge?.minimumCheckInDays || 0) && participant.status !== ChallengeParticipantStatus.COMPLETED) {
         participant.status = ChallengeParticipantStatus.COMPLETED;
+        
+        // 🎖️ 完成睡眠挑战时，授予 sleepChallengeMonth 勋章
+        if (challenge.type === ChallengeType.SLEEP) {
+          try {
+            await this.badgeService.awardBadge(userId, 'sleepChallengeMonth', {
+              source: BadgeSource.CHALLENGE,
+              sourceId: challengeId,
+              metadata: {
+                challengeName: challenge.title,
+                challengeType: challenge.type,
+                completedDays: participant.progressValue,
+                completedAt: new Date(),
+              },
+            });
+            this.winstonLogger.info('授予睡眠挑战完成勋章成功', {
+              context: 'reportProgress',
+              userId,
+              challengeId,
+              badgeCode: 'sleepChallengeMonth',
+              completedDays: participant.progressValue,
+            });
+          } catch (error) {
+            // 勋章授予失败不应影响主流程，仅记录日志
+            this.winstonLogger.error('授予睡眠挑战完成勋章失败', {
+              context: 'reportProgress',
+              userId,
+              challengeId,
+              badgeCode: 'sleepChallengeMonth',
+              error: error instanceof Error ? error.message : '未知错误',
+            });
+          }
+        }
       }
 
       await participant.save();