feat(admin): 工单管理 UI 优化与回复模板、文件管理增强

工单列表与详情 UI/交互优化及新工单提醒；新增回复模板与工单类型管理；文件管理增加管理员筛选并优化详情展示。

Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/layout/AdminLayout.vue

@@ -45,12 +45,8 @@
           <breadcrumb />
         </div>
         <div class="navbar-right">
-          <div class="navbar-item hidden-mobile">
-            <el-tooltip content="全屏" placement="bottom">
-              <el-button type="text" class="header-btn" @click="toggleFullScreen">
-                <el-icon :size="18"><full-screen /></el-icon>
-              </el-button>
-            </el-tooltip>
+          <div class="navbar-item">
+            <GlobalSearch />
           </div>
 
           <div class="navbar-item">
@@ -103,9 +99,9 @@ import { useRoute, useRouter } from 'vue-router'
 import SidebarMenuItem from './SidebarMenuItem.vue'
 import Breadcrumb from './Breadcrumb.vue'
 import TagsView from './TagsView.vue'
+import GlobalSearch from './GlobalSearch.vue'
 import { menus as menuConfig } from '@/config/menus'
 import { 
-  FullScreen, 
   ArrowDown,
   User,
   Key,
@@ -165,17 +161,6 @@ const closeMobileMenu = () => {
   isMobileMenuOpen.value = false
 }
 
-// 切换全屏
-const toggleFullScreen = () => {
-  if (!document.fullscreenElement) {
-    document.documentElement.requestFullscreen()
-  } else {
-    if (document.exitFullscreen) {
-      document.exitFullscreen()
-    }
-  }
-}
-
 // 退出登录
 const handleLogout = () => {
   ElMessageBox.confirm('确定要退出登录吗？', '提示', {