feat(auth): 添加异步密码哈希和验证函数

refactor(relay): 复用HTTP客户端和请求体序列化结果

feat(kernel): 添加获取单个审批记录的方法

fix(store): 改进SaaS连接错误分类和降级处理

docs: 更新审计文档和系统架构文档

refactor(prompt): 优化SQL查询参数化绑定

refactor(migration): 使用静态SQL和COALESCE更新配置项

feat(commands): 添加审批执行状态追踪和事件通知

chore: 更新启动脚本以支持Admin后台

fix(auth-guard): 优化授权状态管理和错误处理

refactor(db): 使用异步密码哈希函数

refactor(totp): 使用异步密码验证函数

style: 清理无用文件和注释

docs: 更新功能全景和审计文档

refactor(service): 优化HTTP客户端重用和请求处理

fix(connection): 改进SaaS不可用时的降级处理

refactor(handlers): 使用异步密码验证函数

chore: 更新依赖和工具链配置

desktop/src/store/saasStore.ts

@@ -97,7 +97,9 @@ export type SaaSStore = SaaSStateSlice & SaaSActionsSlice;
 
 // === Constants ===
 
-const DEFAULT_SAAS_URL = 'https://saas.zclaw.com';
+const DEFAULT_SAAS_URL = import.meta.env.DEV
+  ? 'http://127.0.0.1:8080'
+  : 'https://saas.zclaw.com';
 
 // === Helpers ===
 
@@ -218,14 +220,21 @@ export const useSaaSStore = create<SaaSStore>((set, get) => {
             ? err.message
             : String(err);
 
-        const isNetworkError = message.includes('Failed to fetch')
+        const isTimeout = message.includes('signal timed out')
+          || message.includes('Timeout')
+          || message.includes('timed out')
+          || message.includes('AbortError');
+
+        const isConnectionRefused = message.includes('Failed to fetch')
           || message.includes('NetworkError')
           || message.includes('ECONNREFUSED')
-          || message.includes('timeout');
+          || message.includes('connection refused');
 
-        const userMessage = isNetworkError
-          ? `无法连接到 SaaS 服务器: ${requestUrl}`
-          : message;
+        const userMessage = isTimeout
+          ? `连接 SaaS 服务器超时，请确认后端服务正在运行: ${requestUrl}`
+          : isConnectionRefused
+            ? `无法连接到 SaaS 服务器，请确认后端服务已启动: ${requestUrl}`
+            : message;
 
         set({ isLoading: false, error: userMessage });
         throw new Error(userMessage);
@@ -491,7 +500,6 @@ export const useSaaSStore = create<SaaSStore>((set, get) => {
           const existing = localStorage.getItem(storageKey);
 
           // Diff check: skip if local was modified since last pull
-          const lastPullKey = `zclaw-config-pull-ts.${config.category}.${config.key}`;
           const dirtyKey = `zclaw-config-dirty.${config.category}.${config.key}`;
           const lastPulledValue = localStorage.getItem(`zclaw-config-pulled.${config.category}.${config.key}`);