feat(challenges): 添加挑战源和分享代码字段，更新挑战详情和列表接口

src/challenges/challenges.service.ts

@@ -178,6 +178,8 @@ export class ChallengesService {
         isJoined: Boolean(participation),
         type: challenge.type,
         badge: challenge.type === ChallengeType.SLEEP ? sleepBadge : undefined,
+        source: challenge.source,
+        shareCode: challenge.shareCode,
       };
     });
   }
@@ -284,6 +286,9 @@ export class ChallengesService {
       unit: challenge.progressUnit,
       type: challenge.type,
       badge,
+      creatorId: challenge.creatorId,
+      shareCode: challenge.shareCode,
+      source: challenge.source,
     };
   }