feat: 优化登录策略 - 延长token有效期并支持自动刷新

1. 后端配置 (.env.ex):
   - ACCESS_TOKEN_EXPIRE_MINUTES: 30 -> 480 (8小时)

2. 前端 (request.ts):
   - 401错误时先尝试使用refresh_token刷新
   - 刷新成功后自动重试原请求
   - 支持并发请求时的token刷新队列
   - 刷新失败才清除状态并跳转登录页

backend/.env.ex

@@ -22,7 +22,7 @@ REDIS_DB=0
 # 安全配置
 SECRET_KEY=ex_8f7a9c3e1b4d6f2a5c8e7b9d1f3a6c4e8b2d5f7a9c1e3b6d8f2a4c7e9b1d3f5a
 ALGORITHM=HS256
-ACCESS_TOKEN_EXPIRE_MINUTES=30
+ACCESS_TOKEN_EXPIRE_MINUTES=480
 REFRESH_TOKEN_EXPIRE_DAYS=7
 
 # CORS配置

frontend/src/api/request.ts

@@ -10,6 +10,21 @@ import { loadingManager } from '@/utils/loadingManager'
 // 模拟延迟，使体验更真实
 const delay = (ms: number) => new Promise(resolve => setTimeout(resolve, ms))
 
+// Token刷新状态管理
+let isRefreshing = false
+let refreshSubscribers: Array<(token: string) => void> = []
+
+// 订阅token刷新
+const subscribeTokenRefresh = (callback: (token: string) => void) => {
+  refreshSubscribers.push(callback)
+}
+
+// 通知所有订阅者
+const onTokenRefreshed = (token: string) => {
+  refreshSubscribers.forEach(callback => callback(token))
+  refreshSubscribers = []
+}
+
 // 扩展RequestInit接口以支持transformRequest
 interface ExtendedRequestInit extends RequestInit {
   transformRequest?: Array<(data: any, headers?: any) => any>
@@ -108,24 +123,84 @@ class Request {
     } catch (error) {
       // 处理HTTP错误
       const errorInfo = handleHttpError(error)
-      // 401 统一处理：清理本地状态并跳转登录
-      try {
       const status = (errorInfo as any)?.status || (error as any)?.status
-        if (status === 401) {
+      
+      // 401 处理：先尝试刷新Token，失败后再跳转登录
+      if (status === 401 && !url.includes('/auth/refresh') && !url.includes('/auth/login')) {
+        const refreshToken = localStorage.getItem('refresh_token')
+        
+        if (refreshToken) {
+          // 如果已经在刷新中，等待刷新完成后重试
+          if (isRefreshing) {
+            return new Promise<ApiResponse<T>>((resolve, reject) => {
+              subscribeTokenRefresh((newToken: string) => {
+                // 使用新token重试原请求
+                options.headers = {
+                  ...options.headers,
+                  'Authorization': `Bearer ${newToken}`
+                }
+                this.request<T>(url, options, showLoading).then(resolve).catch(reject)
+              })
+            })
+          }
+          
+          isRefreshing = true
+          console.info('[Auth] Token过期，尝试刷新...')
+          
+          try {
+            // 调用刷新接口
+            const refreshResponse = await fetch(`${API_CONFIG.baseURL}/api/v1/auth/refresh`, {
+              method: 'POST',
+              headers: { 'Content-Type': 'application/json' },
+              body: JSON.stringify({ refresh_token: refreshToken })
+            })
+            
+            if (refreshResponse.ok) {
+              const refreshData = await refreshResponse.json()
+              if (refreshData.code === 200 && refreshData.data?.token) {
+                const newAccessToken = refreshData.data.token.access_token
+                const newRefreshToken = refreshData.data.token.refresh_token
+                
+                // 保存新token
+                localStorage.setItem('access_token', newAccessToken)
+                if (newRefreshToken) {
+                  localStorage.setItem('refresh_token', newRefreshToken)
+                }
+                
+                console.info('[Auth] Token刷新成功')
+                isRefreshing = false
+                onTokenRefreshed(newAccessToken)
+                
+                // 使用新token重试原请求
+                options.headers = {
+                  ...options.headers,
+                  'Authorization': `Bearer ${newAccessToken}`
+                }
+                return this.request<T>(url, options, showLoading)
+              }
+            }
+            
+            // 刷新失败，执行登出
+            console.warn('[Auth] Token刷新失败，需要重新登录')
+            isRefreshing = false
+          } catch (refreshError) {
+            console.error('[Auth] Token刷新异常:', refreshError)
+            isRefreshing = false
+          }
+        }
+        
+        // 无refresh_token或刷新失败，清理状态并跳转登录
         console.warn('[Auth] Token过期或无效，正在清理认证状态', { url, status })
         localStorage.removeItem('access_token')
         localStorage.removeItem('refresh_token')
         localStorage.removeItem('current_user')
-          // 避免死循环，仅在非登录页执行
+        
         if (!location.pathname.startsWith('/login')) {
           console.info('[Auth] 重定向到登录页')
           location.href = '/login'
         }
       }
-      } catch (authError) {
-        // 认证处理过程中的异常不应影响主流程，但需要记录
-        console.error('[Auth] 处理401错误时发生异常:', authError)
-      }
+      
       throw errorInfo
     } finally {
       if (showLoading) {