feat(api): implement API configuration validation and error handling in home screen and update section

stores/homeStore.ts

@@ -166,11 +166,11 @@ const useHomeStore = create<HomeState>((set, get) => ({
           if (pageStart === 0) {
             // 缓存新数据
             dataCache.set(cacheKey, newItems);
-            set((state) => ({
+            set({
               contentData: newItems,
               pageStart: result.list.length,
               hasMore: true,
-            }));
+            });
           } else {
             // 增量加载时不缓存，直接追加
             set((state) => ({
@@ -187,11 +187,25 @@ const useHomeStore = create<HomeState>((set, get) => ({
         set({ hasMore: false });
       }
     } catch (err: any) {
+      let errorMessage = "加载失败，请重试";
+      
       if (err.message === "API_URL_NOT_SET") {
-        set({ error: "请点击右上角设置按钮，配置您的服务器地址" });
-      } else {
-        set({ error: "加载失败，请重试" });
+        errorMessage = "请点击右上角设置按钮，配置您的服务器地址";
+      } else if (err.message === "UNAUTHORIZED") {
+        errorMessage = "认证失败，请重新登录";
+      } else if (err.message.includes("Network")) {
+        errorMessage = "网络连接失败，请检查网络连接";
+      } else if (err.message.includes("timeout")) {
+        errorMessage = "请求超时，请检查网络或服务器状态";
+      } else if (err.message.includes("404")) {
+        errorMessage = "服务器API路径不正确，请检查服务器配置";
+      } else if (err.message.includes("500")) {
+        errorMessage = "服务器内部错误，请联系管理员";
+      } else if (err.message.includes("403")) {
+        errorMessage = "访问被拒绝，请检查权限设置";
       }
+      
+      set({ error: errorMessage });
     } finally {
       set({ loading: false, loadingMore: false });
     }

stores/updateStore.ts

@@ -1,6 +1,7 @@
 import { create } from 'zustand';
 import updateService from '../services/updateService';
 import AsyncStorage from '@react-native-async-storage/async-storage';
+import Toast from 'react-native-toast-message';
 
 interface UpdateState {
   // 状态
@@ -15,6 +16,7 @@ interface UpdateState {
   lastCheckTime: number;
   skipVersion: string | null;
   showUpdateModal: boolean;
+  isLatestVersion: boolean; // 新增：是否已是最新版本
   
   // 操作
   checkForUpdate: (silent?: boolean) => Promise<void>;
@@ -43,11 +45,12 @@ export const useUpdateStore = create<UpdateState>((set, get) => ({
   lastCheckTime: 0,
   skipVersion: null,
   showUpdateModal: false,
+  isLatestVersion: false, // 新增：初始为false
 
   // 检查更新
   checkForUpdate: async (silent = false) => {
     try {
-      set({ error: null });
+      set({ error: null, isLatestVersion: false });
 
       // 获取跳过的版本
       const skipVersion = await AsyncStorage.getItem(STORAGE_KEYS.SKIP_VERSION);
@@ -58,6 +61,9 @@ export const useUpdateStore = create<UpdateState>((set, get) => ({
       // 如果有更新且不是要跳过的版本
       const shouldShowUpdate = isUpdateAvailable && versionInfo.version !== skipVersion;
 
+      // 检查是否已经是最新版本
+      const isLatest = !isUpdateAvailable;
+
       set({
         remoteVersion: versionInfo.version,
         downloadUrl: versionInfo.downloadUrl,
@@ -65,8 +71,19 @@ export const useUpdateStore = create<UpdateState>((set, get) => ({
         lastCheckTime: Date.now(),
         skipVersion,
         showUpdateModal: shouldShowUpdate && !silent,
+        isLatestVersion: isLatest,
       });
 
+      // 如果是手动检查且已是最新版本，显示提示
+      if (!silent && isLatest) {
+        Toast.show({
+          type: 'success',
+          text1: '已是最新版本',
+          text2: `当前版本 v${updateService.getCurrentVersion()} 已是最新版本`,
+          visibilityTime: 3000,
+        });
+      }
+
       // 保存最后检查时间
       await AsyncStorage.setItem(
         STORAGE_KEYS.LAST_CHECK_TIME,
@@ -76,7 +93,8 @@ export const useUpdateStore = create<UpdateState>((set, get) => ({
       // console.info('检查更新失败:', error);
       set({ 
         error: error instanceof Error ? error.message : '检查更新失败',
-        updateAvailable: false 
+        updateAvailable: false,
+        isLatestVersion: false,
       });
     }
   },
@@ -166,6 +184,7 @@ export const useUpdateStore = create<UpdateState>((set, get) => ({
       downloadedPath: null,
       error: null,
       showUpdateModal: false,
+      isLatestVersion: false, // 重置时也要重置这个状态
     });
   },
 }));