feat: 实现探索动态功能

在动态列表中新增探索动态功能，允许用户浏览和发现新的动态内容。

具体修改包括:

- 在API接口中添加`explore`参数，用于请求探索动态数据。
- 修改MomentService，添加`explore`参数，用于获取探索动态数据。
- 更新MomentViewModel，使用`explore`参数请求探索动态数据。
- 修改MomentPagingSource，使用`explore`参数请求探索动态数据。
- 修改MomentCard，使用`explore`参数显示探索动态数据。

app/src/main/java/com/aiosman/riderpro/entity/Moment.kt

@@ -27,6 +27,7 @@ class MomentPagingSource(
     private val timelineId: Int? = null,
     private val contentSearch: String? = null,
     private val trend: Boolean? = false,
+    private val explore: Boolean? = false,
     private val favoriteUserId: Int? = null
 ) : PagingSource<Int, MomentEntity>() {
     override suspend fun load(params: LoadParams<Int>): LoadResult<Int, MomentEntity> {
@@ -38,6 +39,7 @@ class MomentPagingSource(
                 timelineId = timelineId,
                 contentSearch = contentSearch,
                 trend = trend,
+                explore = explore,
                 favoriteUserId = favoriteUserId
             )
 
@@ -66,6 +68,7 @@ class MomentRemoteDataSource(
         timelineId: Int?,
         contentSearch: String?,
         trend: Boolean?,
+        explore: Boolean?,
         favoriteUserId: Int?
     ): ListContainer<MomentEntity> {
         return momentService.getMoments(
@@ -74,6 +77,7 @@ class MomentRemoteDataSource(
             timelineId = timelineId,
             contentSearch = contentSearch,
             trend = trend,
+            explore = explore,
             favoriteUserId = favoriteUserId
         )
     }
@@ -88,7 +92,8 @@ class MomentServiceImpl() : MomentService {
         timelineId: Int?,
         contentSearch: String?,
         trend: Boolean?,
-        favoriteUserId: Int?
+        explore: Boolean?,
+        favoriteUserId: Int?,
     ): ListContainer<MomentEntity> {
         return momentBackend.fetchMomentItems(
             pageNumber = pageNumber,
@@ -96,7 +101,8 @@ class MomentServiceImpl() : MomentService {
             timelineId = timelineId,
             contentSearch = contentSearch,
             trend = trend,
-            favoriteUserId = favoriteUserId
+            favoriteUserId = favoriteUserId,
+            explore = explore
         )
     }
 
@@ -144,6 +150,7 @@ class MomentBackend {
         timelineId: Int?,
         contentSearch: String?,
         trend: Boolean?,
+        explore: Boolean?,
         favoriteUserId: Int? = null
     ): ListContainer<MomentEntity> {
         val resp = ApiClient.api.getPosts(
@@ -153,7 +160,8 @@ class MomentBackend {
             authorId = author,
             contentSearch = contentSearch,
             trend = if (trend == true) "true" else "",
-            favouriteUserId = favoriteUserId
+            favouriteUserId = favoriteUserId,
+            explore = if (explore == true) "true" else ""
         )
         val body = resp.body() ?: throw ServiceException("Failed to get moments")
         return ListContainer(