功能(鉴权): 增加前端登录态守卫与退出流程

src/components/Welcome.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import router from "@/router/index.js";
+import router from "@/router";
 
 const startStudy = () => {
   router.push("/study");
@@ -12,11 +12,7 @@ const startReview = () => {
 <template>
   <el-container class="container">
     <el-header class="header">
-<!--      <div class="marquee-wrapper">-->
-<!--        <div class="marquee-content">-->
-          FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
-<!--        </div>-->
-<!--      </div>-->
+      欢迎回来，今天也稳步推进学习计划
     </el-header>