新增趋势动态功能

实现了趋势动态功能，包括前端和后端支持。允许用户查看和获取趋势动态。

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

@@ -24,7 +24,8 @@ class MomentPagingSource(
     private val remoteDataSource: MomentRemoteDataSource,
     private val author: Int? = null,
     private val timelineId: Int? = null,
-    private val contentSearch: String? = null
+    private val contentSearch: String? = null,
+    private val trend: Boolean? = false
 ) : PagingSource<Int, MomentEntity>() {
     override suspend fun load(params: LoadParams<Int>): LoadResult<Int, MomentEntity> {
         return try {
@@ -33,7 +34,8 @@ class MomentPagingSource(
                 pageNumber = currentPage,
                 author = author,
                 timelineId = timelineId,
-                contentSearch = contentSearch
+                contentSearch = contentSearch,
+                trend = trend
             )
 
             LoadResult.Page(
@@ -59,9 +61,16 @@ class MomentRemoteDataSource(
         pageNumber: Int,
         author: Int?,
         timelineId: Int?,
-        contentSearch: String?
+        contentSearch: String?,
+        trend: Boolean?
     ): ListContainer<MomentEntity> {
-        return momentService.getMoments(pageNumber, author, timelineId, contentSearch)
+        return momentService.getMoments(
+            pageNumber = pageNumber,
+            author = author,
+            timelineId = timelineId,
+            contentSearch = contentSearch,
+            trend = trend
+        )
     }
 }
 
@@ -72,9 +81,16 @@ class MomentServiceImpl() : MomentService {
         pageNumber: Int,
         author: Int?,
         timelineId: Int?,
-        contentSearch: String?
+        contentSearch: String?,
+        trend: Boolean?
     ): ListContainer<MomentEntity> {
-        return momentBackend.fetchMomentItems(pageNumber, author, timelineId, contentSearch)
+        return momentBackend.fetchMomentItems(
+            pageNumber = pageNumber,
+            author = author,
+            timelineId = timelineId,
+            contentSearch = contentSearch,
+            trend = trend
+        )
     }
 
     override suspend fun getMomentById(id: Int): MomentEntity {
@@ -115,14 +131,16 @@ class MomentBackend {
         pageNumber: Int,
         author: Int? = null,
         timelineId: Int?,
-        contentSearch: String?
+        contentSearch: String?,
+        trend: Boolean?
     ): ListContainer<MomentEntity> {
         val resp = ApiClient.api.getPosts(
             pageSize = DataBatchSize,
             page = pageNumber,
             timelineId = timelineId,
             authorId = author,
-            contentSearch = contentSearch
+            contentSearch = contentSearch,
+            trend = if (trend == true) "true" else ""
         )
         val body = resp.body() ?: throw ServiceException("Failed to get moments")
         return ListContainer(