feat: show login error message; add request timeout & network guard; silence NavigationDuplicated

src/store/module/user.js

@@ -51,16 +51,17 @@ export default {
           ip
         }).then(res => {
           let data = res.data
-          console.log("data:", data)
           if (data.code === 200) {
             let token = data.token
-            console.log("token:", token)
             commit('setToken', token)
             let curDate = new Date()
             let expireTime = curDate.getTime() +24*60*60*1000 // 假设过期时间为后一天24*60*60*1000
             commit('setExpireTime',expireTime)
+            resolve(data)
+          } else {
+            // 登录失败（如用户名或密码错误）：把错误抛出给页面提示
+            reject(new Error(data.message || '登录失败，请稍后重试'))
           }
-          resolve(data)
         }).catch(err => {
           reject(err)
         })