fix(ActivitiesDetail): 修复分享功能参数传递和页面引用

- 修复分享配置(shareConfig)改为动态计算,包含activityId和title参数
- 修复onShareAppMessage函数,完整传递activityId和title参数
- 优先使用URL参数的title,避免API未返回时标题为空
- 将所有ActivitiesCover页面引用改为ActivitiesDetail
- 更新所有日志前缀从[ActivitiesCover]改为[ActivitiesDetail]

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

@@ -274,11 +274,26 @@ const activityData = ref({
   ],
 })
 
-// 分享配置
-const shareConfig = ref({
-  title: '主题路线打卡活动等你参与',
-  path: '/pages/ActivitiesCover/index',
-  imageUrl: '',
+// 分享配置（动态生成，包含当前页面参数）
+const shareConfig = computed(() => {
+  const params = new URLSearchParams()
+  if (activityId.value) {
+    params.append('activityId', activityId.value)
+  }
+  if (activityData.value.title) {
+    params.append('title', activityData.value.title)
+  }
+
+  const queryString = params.toString()
+  const fullPath = queryString
+    ? `/pages/ActivitiesDetail/index?${queryString}`
+    : '/pages/ActivitiesDetail/index'
+
+  return {
+    title: activityData.value.title || '主题路线打卡活动等你参与',
+    path: fullPath,
+    imageUrl: activityData.value.posterUrl || '',
+  }
 })
 
 /**
@@ -612,9 +627,26 @@ const onShareActivity = () => {
  * @returns {Object} 分享配置对象
  */
 const onShareAppMessage = () => {
+  // 优先使用从 URL 参数传入的 title，如果 API 还没返回数据
+  const instance = Taro.getCurrentInstance()
+  const urlParams = instance.router?.params || {}
+  const shareTitle = urlParams.title || activityData.value.title || '主题路线打卡活动等你参与'
+
+  // 分享时需要带上 activityId 和 title 参数
+  const params = new URLSearchParams()
+  if (activityId.value) {
+    params.append('activityId', activityId.value)
+  }
+  if (shareTitle) {
+    params.append('title', shareTitle)
+  }
+
+  const queryString = params.toString()
+  const sharePath = `/pages/ActivitiesDetail/index${queryString ? '?' + queryString : ''}`
+
   return {
-    title: '主题路线打卡活动等你参与',
-    path: addShareFlag('/pages/ActivitiesCover/index'),
+    title: shareTitle,
+    path: addShareFlag(sharePath),
     success: res => {
       // 分享成功
     },
@@ -986,11 +1018,11 @@ const fetchActivityDetail = async () => {
   try {
     // 如果没有活动ID，不获取详情
     if (!activityId.value) {
-      console.warn('[ActivitiesCover] 未提供活动ID，跳过详情获取')
+      console.warn('[ActivitiesDetail] 未提供活动ID，跳过详情获取')
       return
     }
 
-    console.log('[ActivitiesCover] 开始获取活动详情, ID:', activityId.value)
+    console.log('[ActivitiesDetail] 开始获取活动详情, ID:', activityId.value)
 
     // 根据环境选择真实 API 或 mock API
     const response = USE_MOCK_DATA
@@ -998,7 +1030,7 @@ const fetchActivityDetail = async () => {
       : await detailAPI({ id: activityId.value })
 
     if (response.code === 1 && response.data) {
-      console.log('[ActivitiesCover] 活动详情获取成功:', response.data)
+      console.log('[ActivitiesDetail] 活动详情获取成功:', response.data)
 
       // 转换 API 数据为页面格式
       const transformedData = transformApiDataToActivityData(response.data)
@@ -1010,7 +1042,7 @@ const fetchActivityDetail = async () => {
           defaultPoster.value = response.data.cover
         } else {
           // cover 为空，保持默认封面不变
-          console.log('[ActivitiesCover] cover 为空，使用默认封面图')
+          console.log('[ActivitiesDetail] cover 为空，使用默认封面图')
         }
 
         // 更新活动状态
@@ -1018,10 +1050,10 @@ const fetchActivityDetail = async () => {
         activityStatus.value.is_ended = Boolean(response.data.is_ended)
       }
     } else {
-      console.warn('[ActivitiesCover] 获取活动详情失败:', response.msg)
+      console.warn('[ActivitiesDetail] 获取活动详情失败:', response.msg)
     }
   } catch (error) {
-    console.error('[ActivitiesCover] 获取活动详情异常:', error)
+    console.error('[ActivitiesDetail] 获取活动详情异常:', error)
   }
 }
 
@@ -1047,7 +1079,7 @@ const initPageData = async () => {
 
 // 处理页面加载时的授权检查
 useLoad(options => {
-  console.log('[ActivitiesCover] 页面加载, 参数:', options)
+  console.log('[ActivitiesDetail] 页面加载, 参数:', options)
 
   // 获取活动 ID（必须有）
   if (options.id) {
@@ -1088,6 +1120,6 @@ onMounted(async () => {
 
 <script>
 export default {
-  name: 'ActivitiesCover',
+  name: 'ActivitiesDetail',
 }
 </script>