Feat: Add News tab and related functionality

- Added a "News" tab to the main index screen.
- Implemented API parameters for fetching news-specific posts: `imageTag`, `search`, `advancedSearch`, `newsFilter`, `onlyNews`, `newsSource`, `newsLanguage`, `newsCategory`, `requireImageCache`.
- Updated `Moment` data class and `MomentEntity` to include news-related fields like `isNews`, `newsTitle`, `newsUrl`, etc.
- Created `News.kt` composable and `NewsViewModel.kt` to display and manage news items.
- Updated `MomentLoader` to include a `newsOnly` parameter for fetching only news items.
- Added Japanese translations for new index tab strings: "Worldwide", "Dynamic", "Following", "Hot", and "News".
- Adjusted tab count and layout based on guest/logged-in user status to accommodate the new "News" tab.

app/src/main/java/com/aiosman/ravenow/Const.kt

@@ -4,11 +4,12 @@ object ConstVars {
     // api 地址 - 根据构建类型自动选择
     // Debug: http://192.168.0.201:8088
     // Release: https://rider-pro.aiosman.com/beta_api
-    val BASE_SERVER = if (BuildConfig.DEBUG) {
+    //    val BASE_SERVER = if (!BuildConfig.DEBUG) {
-        "http://47.109.137.67:6363"  // Debug环境
+//        "http://47.109.137.67:6363"  // Debug环境
-    } else {
+//    } else {
-        "https://rider-pro.aiosman.com/beta_api"  // Release环境
+//        "https://rider-pro.aiosman.com/beta_api"  // Release环境
-    }
+//    }
+    val BASE_SERVER = "https://rider-pro.aiosman.com/beta_api"
 
     const val MOMENT_LIKE_CHANNEL_ID = "moment_like"
     const val MOMENT_LIKE_CHANNEL_NAME = "Moment Like"

app/src/main/java/com/aiosman/ravenow/data/CategoryService.kt

@@ -0,0 +1,49 @@
+package com.aiosman.ravenow.data
+
+import com.google.gson.annotations.SerializedName
+
+/**
+ * 分类翻译数据模型
+ */
+data class CategoryTranslation(
+    @SerializedName("name")
+    val name: String,
+    @SerializedName("description")
+    val description: String
+)
+
+/**
+ * 分类翻译集合
+ */
+data class CategoryTranslations(
+    @SerializedName("ja")
+    val ja: CategoryTranslation? = null
+)
+
+/**
+ * 分类数据模型
+ */
+data class Category(
+    @SerializedName("id")
+    val id: Int,
+    @SerializedName("name")
+    val name: String,
+    @SerializedName("description")
+    val description: String,
+    @SerializedName("avatar")
+    val avatar: String,
+    @SerializedName("parentId")
+    val parentId: Int? = null,
+    @SerializedName("sort")
+    val sort: Int,
+    @SerializedName("isActive")
+    val isActive: Boolean,
+    @SerializedName("promptCount")
+    val promptCount: Int,
+    @SerializedName("createdAt")
+    val createdAt: String,
+    @SerializedName("updatedAt")
+    val updatedAt: String,
+    @SerializedName("translations")
+    val translations: CategoryTranslations? = null
+)

app/src/main/java/com/aiosman/ravenow/data/api/RiderProAPI.kt

@@ -6,6 +6,7 @@ import com.aiosman.ravenow.data.AccountLike
 import com.aiosman.ravenow.data.AccountNotice
 import com.aiosman.ravenow.data.AccountProfile
 import com.aiosman.ravenow.data.Agent
+import com.aiosman.ravenow.data.Category
 import com.aiosman.ravenow.data.Comment
 import com.aiosman.ravenow.data.DataContainer
 import com.aiosman.ravenow.data.ListContainer
@@ -570,19 +571,39 @@ interface RaveNowAPI {
         @Body body: RemoveAccountRequestBody
     ): Response<Unit>
 
+
+    
     @GET("outside/prompts")
     suspend fun getAgent(
         @Query("page") page: Int = 1,
         @Query("pageSize") pageSize: Int = 20,
-        @Query("withWorkflow") withWorkflow: Int = 1,
+        @Query("order") order: String? = null,
+        @Query("orderKey") orderKey: String? = null,
+        @Query("createdAt") createdAt: String? = null,
+        @Query("updatedAt") updatedAt: String? = null,
+        @Query("createdStart") createdStart: String? = null,
+        @Query("createdEnd") createdEnd: String? = null,
+        @Query("updatedStart") updatedStart: String? = null,
+        @Query("updatedEnd") updatedEnd: String? = null,
+        @Query("title") title: String? = null,
         @Query("authorId") authorId: Int? = null,
+        @Query("authorOpenId") authorOpenId: String? = null,
+        @Query("showPrivate") showPrivate: String? = null,
+        @Query("explore") explore: String? = null,
+        @Query("desc") desc: String? = null,
+        @Query("withWorkflow") withWorkflow: String? = null,
+        @Query("hasAvatar") hasAvatar: String? = null,
+        @Query("random") random: String? = null,
+        @Query("categoryName") categoryName: String? = null,
+        @Query("categoryIds") categoryIds: List<Int>? = null,
+        @Query("uncategorized") uncategorized: String? = null,
     ): Response<DataContainer<ListContainer<Agent>>>
 
     @GET("outside/my/prompts")
     suspend fun getMyAgent(
         @Query("page") page: Int = 1,
         @Query("pageSize") pageSize: Int = 20,
-        @Query("withWorkflow") withWorkflow: Int = 1,
+        @Query("withWorkflow") withWorkflow: String = "1",
     ): Response<ListContainer<Agent>>
 
     @Multipart
@@ -633,5 +654,12 @@ interface RaveNowAPI {
     @POST("outside/generate/agent-info")
     suspend fun generateAgentInfo(@Body body: GenerateAgentInfoRequestBody): Response<DataContainer<GenerateAgentInfoResponseBody>>
 
+    @GET("outside/categories")
+    suspend fun getCategories(
+        @Query("page") page: Int = 1,
+        @Query("pageSize") pageSize: Int = 20,
+        @Query("lang") lang: String? = null
+    ): Response<ListContainer<Category>>
+
 }
 

app/src/main/java/com/aiosman/ravenow/entity/Category.kt

@@ -0,0 +1,160 @@
+package com.aiosman.ravenow.entity
+
+import androidx.paging.PagingSource
+import androidx.paging.PagingState
+import com.aiosman.ravenow.AppStore
+import com.aiosman.ravenow.data.Category
+import com.aiosman.ravenow.data.CategoryTranslation
+import com.aiosman.ravenow.data.CategoryTranslations
+import com.aiosman.ravenow.data.ListContainer
+import com.aiosman.ravenow.data.ServiceException
+import com.aiosman.ravenow.data.api.ApiClient
+import com.aiosman.ravenow.utils.Utils
+import java.io.IOException
+
+/**
+ * 分类实体类
+ */
+data class CategoryEntity(
+    val id: Int,
+    val name: String,
+    val description: String,
+    val avatar: String,
+    val parentId: Int? = null,
+    val sort: Int,
+    val isActive: Boolean,
+    val promptCount: Int,
+    val createdAt: String,
+    val updatedAt: String,
+    val translations: CategoryTranslations? = null
+) {
+    /**
+     * 获取本地化名称
+     */
+    fun getLocalizedName(): String {
+        return when (Utils.getCurrentLanguage()) {
+            "ja" -> translations?.ja?.name ?: name
+            else -> name
+        }
+    }
+
+    /**
+     * 获取本地化描述
+     */
+    fun getLocalizedDescription(): String {
+        return when (Utils.getCurrentLanguage()) {
+            "ja" -> translations?.ja?.description ?: description
+            else -> description
+        }
+    }
+}
+
+/**
+ * Category 数据模型扩展函数
+ */
+fun Category.toCategoryEntity(): CategoryEntity {
+    return CategoryEntity(
+        id = id,
+        name = name,
+        description = description,
+        avatar = if (avatar.isNotEmpty()) "${ApiClient.BASE_API_URL}/outside$avatar?token=${AppStore.token}" else "",
+        parentId = parentId,
+        sort = sort,
+        isActive = isActive,
+        promptCount = promptCount,
+        createdAt = createdAt,
+        updatedAt = updatedAt,
+        translations = translations
+    )
+}
+
+/**
+ * 分类数据后端服务
+ */
+class CategoryBackend {
+    private val DataBatchSize = 20
+
+    suspend fun getCategories(pageNumber: Int): ListContainer<CategoryEntity>? {
+        try {
+            val resp = ApiClient.api.getCategories(
+                page = pageNumber,
+                pageSize = DataBatchSize,
+                lang = Utils.getCurrentLanguageTag()
+            )
+
+            if (!resp.isSuccessful) {
+                throw ServiceException("获取分类失败: ${resp.code()}")
+            }
+
+            val body = resp.body() ?: return null
+
+            return ListContainer(
+                total = body.total,
+                page = pageNumber,
+                pageSize = DataBatchSize,
+                list = body.list.map { it.toCategoryEntity() }
+            )
+        } catch (e: Exception) {
+            throw ServiceException("网络请求失败: ${e.message}")
+        }
+    }
+}
+
+/**
+ * 分类数据加载器参数
+ */
+class CategoryLoaderExtraArgs
+
+/**
+ * 分类数据加载器
+ */
+class CategoryLoader : DataLoader<CategoryEntity, CategoryLoaderExtraArgs>() {
+    override suspend fun fetchData(
+        page: Int,
+        pageSize: Int,
+        extra: CategoryLoaderExtraArgs
+    ): ListContainer<CategoryEntity> {
+        val backend = CategoryBackend()
+        return backend.getCategories(page) ?: ListContainer(
+            total = 0,
+            page = page,
+            pageSize = pageSize,
+            list = emptyList()
+        )
+    }
+}
+
+/**
+ * 分类分页数据源
+ */
+class CategoryPagingSource(
+    private val backend: CategoryBackend
+) : PagingSource<Int, CategoryEntity>() {
+
+    override fun getRefreshKey(state: PagingState<Int, CategoryEntity>): Int? {
+        return state.anchorPosition?.let { anchorPosition ->
+            state.closestPageToPosition(anchorPosition)?.prevKey?.plus(1)
+                ?: state.closestPageToPosition(anchorPosition)?.nextKey?.minus(1)
+        }
+    }
+
+    override suspend fun load(params: LoadParams<Int>): LoadResult<Int, CategoryEntity> {
+        return try {
+            val page = params.key ?: 1
+            val response = backend.getCategories(page)
+
+            if (response == null) {
+                LoadResult.Error(IOException("获取分类数据失败"))
+            } else {
+                val hasMore = response.list.size == response.pageSize
+                LoadResult.Page(
+                    data = response.list,
+                    prevKey = if (page == 1) null else page - 1,
+                    nextKey = if (hasMore) page + 1 else null
+                )
+            }
+        } catch (e: Exception) {
+            LoadResult.Error(e)
+        }
+    }
+}

app/src/main/java/com/aiosman/ravenow/ui/index/tabs/ai/Agent.kt

@@ -253,9 +253,10 @@ fun Agent() {
 //                    )
 //                }
 
-                var selectedTabIndex by remember { mutableStateOf(0) }
+                // 使用 ViewModel 中的选中状态
+                val selectedTabIndex = viewModel.selectedCategoryIndex
 
-                // 标签页
+                // 动态标签页
                 LazyRow(
                     modifier = Modifier
                         .fillMaxWidth()
@@ -264,83 +265,27 @@ fun Agent() {
                     horizontalArrangement = Arrangement.Start,
                     verticalAlignment = Alignment.CenterVertically
                 ) {
-                    item {
+                    viewModel.categories.forEachIndexed { index, category ->
-                        CustomTabItem(
+                        item {
-                            text = stringResource(R.string.agent_recommend),
+                            CustomTabItem(
-                            isSelected = selectedTabIndex == 0,
+                                text = category.getLocalizedName(),
-                            onClick = {
+                                isSelected = selectedTabIndex == index,
-                                selectedTabIndex = 0
+                                onClick = {
+                                    viewModel.selectCategory(index)
+                                }
+                            )
+                        }
+
+                        if (index < viewModel.categories.size - 1) {
+                            item {
+                                TabSpacer()
                             }
-                        )
+                        }
-                    }
-
-                    item {
-                        TabSpacer()
-                    }
-
-                    item {
-                        CustomTabItem(
-                            text = "scenes",
-                            isSelected = selectedTabIndex == 1,
-                            onClick = {
-                                selectedTabIndex = 1
-                            }
-                        )
-                    }
-
-                    item {
-                        TabSpacer()
-                    }
-
-                    item {
-                        CustomTabItem(
-                            text = "voices",
-                            isSelected = selectedTabIndex == 2,
-                            onClick = {
-                                selectedTabIndex = 2
-                            }
-                        )
-                    }
-
-                    item {
-                        TabSpacer()
-                    }
-
-                    item {
-                        CustomTabItem(
-                            text = "anime",
-                            isSelected = selectedTabIndex == 3,
-                            onClick = {
-                                selectedTabIndex = 3
-                            }
-                        )
-                    }
-
-                    item {
-                        TabSpacer()
-                    }
-
-                    item {
-                        CustomTabItem(
-                            text = "assist",
-                            isSelected = selectedTabIndex == 4,
-                            onClick = {
-                                selectedTabIndex = 4
-                            }
-                        )
                     }
                 }
 
-                when (selectedTabIndex) {
+                // 显示当前选中分类的 Agent 数据
-                    0 -> {
+                AgentViewPagerSection(agentItems = viewModel.agentItems.take(15), viewModel)
-                        AgentViewPagerSection(agentItems = viewModel.agentItems.take(15), viewModel)
-                    }
-
-                    else -> {
-                        val shuffledAgents = viewModel.agentItems.shuffled().take(15)
-                        AgentViewPagerSection(agentItems = shuffledAgents, viewModel)
-                    }
-                }
             }
 
             // 推荐聊天房间
@@ -496,7 +441,7 @@ fun AgentCardSquare(
         Column(
             modifier = Modifier
                 .fillMaxWidth()
-                .padding(top = avatarSize / 2 + 8.dp, start = 8.dp, end = 8.dp, bottom = 8.dp),
+                .padding(top = avatarSize / 2 + 8.dp, start = 8.dp, end = 8.dp, bottom = 48.dp), // 为底部聊天按钮留出空间
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
             androidx.compose.material3.Text(
@@ -518,43 +463,43 @@ fun AgentCardSquare(
                 overflow = androidx.compose.ui.text.style.TextOverflow.Ellipsis,
                 modifier = Modifier.weight(1f, fill = false)
             )
+        }
 
-            Spacer(modifier = Modifier.height(8.dp))
+        // 聊天按钮，固定在底部居中，距离底部有一定边距
-
+        Box(
-            // 聊天按钮，位于底部居中
+            modifier = Modifier
-            Box(
+                .align(Alignment.BottomCenter)
-                modifier = Modifier
+                .padding(bottom = 12.dp) // 距离底部的边距
-                    .width(80.dp)
+                .width(80.dp)
-                    .height(32.dp)
+                .height(32.dp)
-                    .background(
+                .background(
-                        color = AppColors.inputBackground,
+                    color = AppColors.inputBackground,
-                        shape = RoundedCornerShape(8.dp)
+                    shape = RoundedCornerShape(8.dp)
-                    )
-                    .clickable {
-                        if (DebounceUtils.simpleDebounceClick(lastClickTime, 500L) {
-                                // 检查游客模式，如果是游客则跳转登录
-                                if (GuestLoginCheckOut.needLogin(GuestLoginCheckOutScene.CHAT_WITH_AGENT)) {
-                                    navController.navigate(NavigationRoute.Login.route)
-                                } else {
-                                    viewModel.createSingleChat(agentItem.openId)
-                                    viewModel.goToChatAi(
-                                        agentItem.openId,
-                                        navController = navController
-                                    )
-                                }
-                            }) {
-                            lastClickTime = System.currentTimeMillis()
-                        }
-                    },
-                contentAlignment = Alignment.Center
-            ) {
-                androidx.compose.material3.Text(
-                    text = stringResource(R.string.chat),
-                    fontSize = 12.sp,
-                    color = AppColors.text,
-                    fontWeight = androidx.compose.ui.text.font.FontWeight.W500
                 )
-            }
+                .clickable {
+                    if (DebounceUtils.simpleDebounceClick(lastClickTime, 500L) {
+                            // 检查游客模式，如果是游客则跳转登录
+                            if (GuestLoginCheckOut.needLogin(GuestLoginCheckOutScene.CHAT_WITH_AGENT)) {
+                                navController.navigate(NavigationRoute.Login.route)
+                            } else {
+                                viewModel.createSingleChat(agentItem.openId)
+                                viewModel.goToChatAi(
+                                    agentItem.openId,
+                                    navController = navController
+                                )
+                            }
+                        }) {
+                        lastClickTime = System.currentTimeMillis()
+                    }
+                },
+            contentAlignment = Alignment.Center
+        ) {
+            androidx.compose.material3.Text(
+                text = stringResource(R.string.chat),
+                fontSize = 12.sp,
+                color = AppColors.text,
+                fontWeight = androidx.compose.ui.text.font.FontWeight.W500
+            )
         }
     }
 }
@@ -797,7 +742,7 @@ fun ChatRoomsSection(
             )
             Spacer(modifier = Modifier.width(4.dp))
             androidx.compose.material3.Text(
-                text = "推荐聊天房间",
+                text = stringResource(R.string.agent_chat_room),
                 fontSize = 16.sp,
                 fontWeight = androidx.compose.ui.text.font.FontWeight.W600,
                 color = AppColors.text
@@ -845,59 +790,62 @@ fun ChatRoomCard(
     // 防抖状态
     var lastClickTime by remember { mutableStateOf(0L) }
     
-    Column(
+    // 正方形卡片，文字重叠在底部
-        modifier = modifier,
+    Box(
-        horizontalAlignment = Alignment.CenterHorizontally
+        modifier = modifier
-    ) {
+            .size(cardSize)
-        // 正方形卡片
+            .background(AppColors.secondaryBackground, RoundedCornerShape(12.dp))
-        Box(
+            .clickable {
-            modifier = Modifier
+                if (DebounceUtils.simpleDebounceClick(lastClickTime, 500L) {
-                .size(cardSize)
+                        // 这里可以添加进入聊天房间的逻辑
-                .background(AppColors.secondaryBackground, RoundedCornerShape(12.dp))
+                        // navController.navigate(NavigationRoute.ChatRoom.route.replace("{id}", chatRoom.id))
-                .clickable {
+                    }) {
-                    if (DebounceUtils.simpleDebounceClick(lastClickTime, 500L) {
+                    lastClickTime = System.currentTimeMillis()
-                            // 这里可以添加进入聊天房间的逻辑
+                }
-                            // navController.navigate(NavigationRoute.ChatRoom.route.replace("{id}", chatRoom.id))
-                        }) {
-                        lastClickTime = System.currentTimeMillis()
-                    }
-                },
-            contentAlignment = Alignment.Center
-        ) {
-            // 优先显示banner，如果没有banner则显示头像
-            val imageUrl = if (chatRoom.banner.isNotEmpty()) chatRoom.banner else chatRoom.avatar
-            
-            if (imageUrl.isNotEmpty()) {
-                CustomAsyncImage(
-                    imageUrl = imageUrl,
-                    contentDescription = if (chatRoom.banner.isNotEmpty()) "房间banner" else "房间头像",
-                    modifier = Modifier
-                        .size(cardSize)
-                        .clip(RoundedCornerShape(12.dp)),
-                    contentScale = androidx.compose.ui.layout.ContentScale.Crop
-                )
-            } else {
-                // 默认房间图标
-                Image(
-                    painter = painterResource(R.mipmap.rider_pro_agent),
-                    contentDescription = "默认房间图标",
-                    modifier = Modifier.size(cardSize * 0.4f),
-                    colorFilter = ColorFilter.tint(AppColors.secondaryText)
-                )
             }
+    ) {
+        // 优先显示banner，如果没有banner则显示头像
+        val imageUrl = if (chatRoom.banner.isNotEmpty()) chatRoom.banner else chatRoom.avatar
+        
+        if (imageUrl.isNotEmpty()) {
+            CustomAsyncImage(
+                imageUrl = imageUrl,
+                contentDescription = if (chatRoom.banner.isNotEmpty()) "房间banner" else "房间头像",
+                modifier = Modifier
+                    .size(cardSize)
+                    .clip(RoundedCornerShape(12.dp)),
+                contentScale = androidx.compose.ui.layout.ContentScale.Crop
+            )
+        } else {
+            // 默认房间图标
+            Image(
+                painter = painterResource(R.mipmap.rider_pro_agent),
+                contentDescription = "默认房间图标",
+                modifier = Modifier.size(cardSize * 0.4f),
+                colorFilter = ColorFilter.tint(AppColors.secondaryText)
+            )
         }
         
-        Spacer(modifier = Modifier.height(8.dp))
+        // 房间名称，重叠在底部
-        
+        Box(
-        // 房间名称
+            modifier = Modifier
-        androidx.compose.material3.Text(
+                .align(Alignment.BottomCenter)
-            text = chatRoom.name,
+                .fillMaxWidth()
-            fontSize = 12.sp,
+                .background(
-            color = AppColors.text,
+                    color = Color.Black.copy(alpha = 0.6f),
-            maxLines = 1,
+                    shape = RoundedCornerShape(bottomStart = 12.dp, bottomEnd = 12.dp)
-            overflow = androidx.compose.ui.text.style.TextOverflow.Ellipsis,
+                )
-            modifier = Modifier.fillMaxWidth(),
+                .padding(horizontal = 8.dp, vertical = 6.dp)
-            textAlign = androidx.compose.ui.text.style.TextAlign.Center
+        ) {
-        )
+            androidx.compose.material3.Text(
+                text = chatRoom.name,
+                fontSize = 12.sp,
+                color = Color.White,
+                maxLines = 1,
+                overflow = androidx.compose.ui.text.style.TextOverflow.Ellipsis,
+                modifier = Modifier.fillMaxWidth(),
+                textAlign = androidx.compose.ui.text.style.TextAlign.Center
+            )
+        }
     }
 }

app/src/main/java/com/aiosman/ravenow/ui/index/tabs/ai/AgentViewModel.kt

@@ -17,6 +17,8 @@ import com.aiosman.ravenow.ui.index.tabs.ai.tabs.mine.MineAgentViewModel.createG
 import com.aiosman.ravenow.ui.NavigationRoute
 import com.aiosman.ravenow.ui.index.tabs.message.MessageListViewModel.userService
 import com.aiosman.ravenow.ui.index.tabs.moment.tabs.expolre.AgentItem
+import com.aiosman.ravenow.entity.CategoryEntity
+import com.aiosman.ravenow.entity.CategoryBackend
 import kotlinx.coroutines.launch
 
 data class ChatRoom(
@@ -40,6 +42,12 @@ object AgentViewModel: ViewModel() {
     var rooms by mutableStateOf<List<Room>>(emptyList())
         private set
 
+    var categories by mutableStateOf<List<CategoryEntity>>(emptyList())
+        private set
+
+    var selectedCategoryIndex by mutableStateOf(0)
+        private set
+
     var errorMessage by mutableStateOf<String?>(null)
         private set
 
@@ -55,16 +63,32 @@ object AgentViewModel: ViewModel() {
     init {
         loadAgentData()
         loadChatRooms()
+        loadCategories()
     }
 
-    private fun loadAgentData() {
+    private fun loadAgentData(categoryIndex: Int = 0) {
         viewModelScope.launch {
             isLoading = true
             errorMessage = null
             currentPage = 1
             hasMoreData = true
             try {
-                val response = apiClient.getAgent(page = currentPage, pageSize = 20, withWorkflow = 1)
+                val selectedCategory = if (categoryIndex < categories.size) categories[categoryIndex] else null
+                
+                val response = if (categoryIndex == 0 || selectedCategory == null) {
+                    // 推荐分类或无效分类，加载所有 Agent
+                    apiClient.getAgent(page = currentPage, pageSize = 20, withWorkflow = "1", random = "true")
+                } else {
+                    // 特定分类，使用 categoryName 参数
+                    apiClient.getAgent(
+                        page = currentPage, 
+                        pageSize = 20, 
+                        withWorkflow = "1",
+                        categoryName = selectedCategory.name,
+                        random = "true"
+                    )
+                }
+                
                 if (response.isSuccessful) {
                     val agents = response.body()?.data?.list ?: emptyList()
                     agentItems = agents.map { agent ->
@@ -85,9 +109,13 @@ object AgentViewModel: ViewModel() {
     private fun loadChatRooms() {
         viewModelScope.launch {
             try {
-                val response = apiClient.getRooms(page = 1, pageSize = 20, isRecommended = 1, random = 1)
+                val response = apiClient.getRooms(page = 1, pageSize = 21, isRecommended = 1, random = 1) // 请求21个，确保是3的倍数
                 if (response.isSuccessful) {
-                    rooms = response.body()?.list ?: emptyList()
+                    val allRooms = response.body()?.list ?: emptyList()
+                    // 确保房间数量是3的倍数，如果不足则截取，如果超出则取前几个
+                    val targetCount = (allRooms.size / 3) * 3 // 向下取整到最近的3的倍数
+                    rooms = allRooms.take(targetCount)
+                    
                     // 转换为ChatRoom格式用于兼容现有UI
                     chatRooms = rooms.map { room ->
                         ChatRoom(
@@ -108,6 +136,44 @@ object AgentViewModel: ViewModel() {
         }
     }
     
+    private fun loadCategories() {
+        viewModelScope.launch {
+            try {
+                val categoryBackend = CategoryBackend()
+                val response = categoryBackend.getCategories(1)
+                if (response != null) {
+                    // 添加一个默认的"推荐"分类在第一位
+                    val recommendCategory = CategoryEntity(
+                        id = 0,
+                        name = "推荐",
+                        description = "推荐内容",
+                        avatar = "",
+                        parentId = null,
+                        sort = 0,
+                        isActive = true,
+                        promptCount = 0,
+                        createdAt = "",
+                        updatedAt = "",
+                        translations = null
+                    )
+                    categories = listOf(recommendCategory) + response.list
+                    
+                    // 分类加载完成后，重新加载当前选中分类的 Agent 数据
+                    if (agentItems.isEmpty()) {
+                        loadAgentData(selectedCategoryIndex)
+                    }
+                } else {
+                    // 如果请求失败，使用默认分类
+                    categories = listOf()
+                }
+            } catch (e: Exception) {
+                // 如果网络请求失败，使用默认分类
+                categories = listOf()
+            }
+        }
+    }
+
+    
     /**
      * 加载更多Agent数据
      */
@@ -118,7 +184,21 @@ object AgentViewModel: ViewModel() {
             isLoading = true
             try {
                 val nextPage = currentPage + 1
-                val response = apiClient.getAgent(page = nextPage, pageSize = 20, withWorkflow = 1)
+                val selectedCategory = if (selectedCategoryIndex < categories.size) categories[selectedCategoryIndex] else null
+                
+                val response = if (selectedCategoryIndex == 0 || selectedCategory == null) {
+                    // 推荐分类或无效分类，加载所有 Agent
+                    apiClient.getAgent(page = nextPage, pageSize = 20, withWorkflow = "1")
+                } else {
+                    // 特定分类，使用 categoryName 参数
+                    apiClient.getAgent(
+                        page = nextPage, 
+                        pageSize = 20, 
+                        withWorkflow = "1",
+                        categoryName = selectedCategory.name
+                    )
+                }
+                
                 if (response.isSuccessful) {
                     val agents = response.body()?.data?.list ?: emptyList()
                     val newAgentItems = agents.map { agent ->
@@ -137,6 +217,17 @@ object AgentViewModel: ViewModel() {
             }
         }
     }
+    
+    /**
+     * 选择分类并加载对应的 Agent 数据
+     */
+    fun selectCategory(categoryIndex: Int) {
+        if (categoryIndex != selectedCategoryIndex) {
+            selectedCategoryIndex = categoryIndex
+            loadAgentData(categoryIndex)
+        }
+    }
+    
     fun createSingleChat(
         openId: String,
     ) {
@@ -195,6 +286,8 @@ object AgentViewModel: ViewModel() {
      */
     fun ResetModel() {
         agentItems = emptyList()
+        categories = emptyList()
+        selectedCategoryIndex = 0
         errorMessage = null
         isRefreshing = false
         isLoading = false

app/src/main/java/com/aiosman/ravenow/ui/index/tabs/moment/tabs/expolre/ExploreViewModel.kt

@@ -70,7 +70,7 @@ class ExploreViewModel : ViewModel() {
             isRefreshing = true
             errorMessage = null
             try {
-                val response = apiClient.getAgent(page = 1, pageSize = 20, withWorkflow = 1)
+                val response = apiClient.getAgent(page = 1, pageSize = 20, withWorkflow = "1")
                 if (response.isSuccessful) {
                     val agents = response.body()?.data?.list ?: emptyList()
                     agentItems = agents.map { agent ->
@@ -114,7 +114,7 @@ class ExploreViewModel : ViewModel() {
             isLoading = true
             errorMessage = null
             try {
-                val response = apiClient.getAgent(page = 1, pageSize = 20, withWorkflow = 1)
+                val response = apiClient.getAgent(page = 1, pageSize = 20, withWorkflow = "1")
                 if (response.isSuccessful) {
                     val agents = response.body()?.data?.list ?: emptyList()
                     agentItems = agents.map { agent ->

app/src/main/java/com/aiosman/ravenow/utils/Utils.kt

@@ -63,6 +63,23 @@ object Utils {
         return Locale.getDefault().language
     }
 
+    /**
+     * 获取当前系统语言的完整标签，包含国家/地区代码
+     * 返回格式：en, ja, zh-CN, zh-TW 等
+     */
+    fun getCurrentLanguageTag(): String {
+        val locale = Locale.getDefault()
+        val language = locale.language
+        val country = locale.country
+        
+        return when {
+            // 中文需要区分简体和繁体
+            language == "zh" && country.isNotEmpty() -> "$language-$country"
+            // 其他语言通常只需要语言代码
+            else -> language
+        }
+    }
+
     fun compressImage(context: Context, uri: Uri, maxSize: Int = 512, quality: Int = 85): File {
         val inputStream = context.contentResolver.openInputStream(uri)
         val originalBitmap = BitmapFactory.decodeStream(inputStream)

app/src/main/res/values-ja/strings.xml

@@ -33,4 +33,28 @@
     <string name="index_following">フォロー中</string>
     <string name="index_hot">ホット</string>
     <string name="index_news">ニュース</string>
+    
+    <!-- Main navigation -->
+    <string name="main_home">ホーム</string>
+    <string name="main_ai">エージェント</string>
+    <string name="main_message">メッセージ</string>
+    <string name="main_profile">プロフィール</string>
+    
+    <!-- Agent related strings -->
+    <string name="agent_mine">マイ</string>
+    <string name="agent_hot">ホット</string>
+    <string name="agent_recommend">おすすめ</string>
+    <string name="agent_other">その他</string>
+    <string name="agent_find">AI発見</string>
+    <string name="chat">チャット</string>
+    <string name="agent_chat_room">チャット</string>
+    <string name="agent_recommended_chat_rooms">おすすめチャットルーム</string>
+    <string name="search">検索</string>
+    <string name="agent_recommend_agent">おすすめエージェント</string>
+    
+    <!-- Chat related -->
+    <string name="chat_ai">AI</string>
+    <string name="chat_group">グループ</string>
+    <string name="chat_friend">友達</string>
+    <string name="hot_rooms">人気チャットルーム</string>
 </resources>

app/src/main/res/values-zh/strings.xml

@@ -188,7 +188,7 @@
     <string name="group_room_enter_success">成功加入房间</string>
     <string name="group_room_enter_fail">加入房间失败</string>
     <string name="agent_createing">创建中...</string>
-    <string name="agent_find">发现</string>
+    <string name="agent_find">发现AI</string>
     <string name="text_error_password_too_long">密码不能超过 %1$d 个字符</string>
     
     <!-- Create Bottom Sheet -->
@@ -217,5 +217,9 @@
     <string name="create_agent_v2_ai_enhance_icon_desc">AI美化图标</string>
     <string name="create_agent_v2_edit_icon_desc">编辑图标</string>
     <string name="create_agent_v2_select_avatar_desc">选择头像</string>
+    
+    <!-- Agent related strings -->
+    <string name="agent_chat_room">聊天</string>
+    <string name="agent_recommended_chat_rooms">推荐聊天房间</string>
 
 </resources>

app/src/main/res/values/strings.xml

@@ -185,7 +185,7 @@
     <string name="group_room_enter_success">成功加入房间</string>
     <string name="group_room_enter_fail">加入房间失败</string>
     <string name="agent_createing">创建中...</string>
-    <string name="agent_find">发现</string>
+    <string name="agent_find">发现AI</string>
     <string name="text_error_password_too_long">Password cannot exceed %1$d characters</string>
     
     <!-- Create Bottom Sheet -->
@@ -214,5 +214,9 @@
     <string name="create_agent_v2_ai_enhance_icon_desc">AI Enhancement Icon</string>
     <string name="create_agent_v2_edit_icon_desc">Edit Icon</string>
     <string name="create_agent_v2_select_avatar_desc">Select Avatar</string>
+    
+    <!-- Agent related strings -->
+    <string name="agent_chat_room">Chat</string>
+    <string name="agent_recommended_chat_rooms">Recommended Chat Rooms</string>
 
 </resources>