feat(challenges): 新增 ChallengeProgressCard 组件并接入喝水挑战进度上报

- 抽离进度卡片为独立组件，支持主题色自定义与复用
- 挑战列表页顶部展示进行中的挑战进度
- 喝水记录自动上报至关联的水挑战
- 移除旧版 challengeSlice 与冗余进度样式
- 统一使用 value 字段上报进度，兼容多类型挑战

store/index.ts

@@ -1,5 +1,4 @@
 import { configureStore, createListenerMiddleware } from '@reduxjs/toolkit';
-import challengeReducer from './challengeSlice';
 import challengesReducer from './challengesSlice';
 import checkinReducer, { addExercise, autoSyncCheckin, removeExercise, replaceExercises, setNote, toggleExerciseCompleted } from './checkinSlice';
 import circumferenceReducer from './circumferenceSlice';
@@ -48,7 +47,6 @@ syncActions.forEach(action => {
 export const store = configureStore({
   reducer: {
     user: userReducer,
-    challenge: challengeReducer,
     challenges: challengesReducer,
     checkin: checkinReducer,
     circumference: circumferenceReducer,