perf: 优化管理端生产加载体验

- 图标与重型组件按需加载，优化菜单预取和页面请求链路

- 开启 gzip 与静态缓存并修复子路由 KeepAlive 冲突

easyflow-ui-admin/packages/@core/ui-kit/menu-ui/src/components/menu-item.vue

@@ -91,6 +91,7 @@ onBeforeUnmount(() => {
 </script>
 <template>
   <li
+    :data-menu-path="path"
     :class="[
       rootMenu.theme,
       b(),

easyflow-ui-admin/packages/@core/ui-kit/menu-ui/src/components/menu.vue

@@ -50,6 +50,7 @@ const props = withDefaults(defineProps<Props>(), {
 
 const emit = defineEmits<{
   close: [string, string[]];
+  enter: [string];
   open: [string, string[]];
   select: [string, string[]];
 }>();
@@ -257,6 +258,25 @@ function handleMenuItemClick(data: MenuItemClicked) {
   emit('select', path, parentPaths);
 }
 
+let enteredPath = '';
+
+function handleMenuItemEnter(event: Event) {
+  const target = event.target;
+  if (!(target instanceof Element)) {
+    return;
+  }
+  const menuItem = target.closest<HTMLElement>('[data-menu-path]');
+  if (!menuItem || !menu.value?.contains(menuItem)) {
+    return;
+  }
+  const path = menuItem.dataset.menuPath;
+  if (!path || path === enteredPath) {
+    return;
+  }
+  enteredPath = path;
+  emit('enter', path);
+}
+
 function handleSubMenuClick({ parentPaths, path }: MenuItemRegistered) {
   const isOpened = openedMenus.value.includes(path);
 
@@ -349,6 +369,9 @@ function getActivePaths() {
     ]"
     :style="menuStyle"
     role="menu"
+    @focusin="handleMenuItemEnter"
+    @mouseleave="enteredPath = ''"
+    @mouseover="handleMenuItemEnter"
   >
     <template v-if="mode === 'horizontal' && getSlot.showSlotMore">
       <template v-for="item in getSlot.slotDefault" :key="item.key">