feat:添加admin相关接口

src/components/layout/AdminLayout.vue

@@ -5,7 +5,7 @@
       <div class="logo-container">
         <h1 class="title">零零七云计算后台控制面板</h1>
       </div>
-      <el-scrollbar>
+      <el-scrollbar class="sidebar-scrollbar">
         <el-menu
           :default-active="activeMenu"
           class="sidebar-menu"
@@ -176,9 +176,13 @@ const handleLogout = () => {
   color: #1890ff;
 }
 
+.sidebar-scrollbar {
+  height: calc(100vh - 60px);
+}
+
 .sidebar-menu {
   border-right: none;
-  height: calc(100vh - 60px);
+  min-height: 100%;
 }
 
 /* 主容器样式 */
@@ -279,4 +283,28 @@ const handleLogout = () => {
 :deep(.el-dropdown-menu__item i) {
   margin-right: 8px;
 }
+
+/* 侧边栏滚动条样式优化 */
+:deep(.sidebar-scrollbar .el-scrollbar__wrap) {
+  overflow-x: hidden;
+}
+
+:deep(.sidebar-scrollbar .el-scrollbar__view) {
+  height: 100%;
+}
+
+/* Element Plus 菜单项样式优化 */
+:deep(.el-menu) {
+  border-right: none;
+}
+
+:deep(.el-sub-menu__title) {
+  height: 48px;
+  line-height: 48px;
+}
+
+:deep(.el-menu-item) {
+  height: 48px;
+  line-height: 48px;
+}
 </style>