feat(challenges): 排行榜支持单位显示与健身圆环自动上报进度

- ChallengeRankingItem 新增 unit 字段，支持按单位格式化今日进度
- FitnessRingsCard 监听圆环闭合，自动向进行中的运动挑战上报 1 次进度
- 过滤已结束挑战，确保睡眠、喝水、运动进度仅上报进行中活动
- 移除 StressMeter 调试日志与 challengesSlice 多余打印

hooks/useWaterData.ts

@@ -48,7 +48,7 @@ const useWaterChallengeProgressReporter = () => {
   const dispatch = useAppDispatch();
   const allChallenges = useAppSelector(selectChallengeList);
   const joinedWaterChallenges = useMemo(
-    () => allChallenges.filter((challenge) => challenge.type === ChallengeType.WATER && challenge.isJoined),
+    () => allChallenges.filter((challenge) => challenge.type === ChallengeType.WATER && challenge.isJoined && challenge.status === 'ongoing'),
     [allChallenges]
   );