diff --git a/web/apps/web-ele/src/components/notification/NotificationDrawer.vue b/web/apps/web-ele/src/components/notification/NotificationDrawer.vue
index d58e99a..d579763 100644
--- a/web/apps/web-ele/src/components/notification/NotificationDrawer.vue
+++ b/web/apps/web-ele/src/components/notification/NotificationDrawer.vue
@@ -1,5 +1,4 @@
 <script lang="ts" setup>
-import type { ChatMessage } from '#/api/core/chat';
 import type {
   AnnouncementItem,
   NotificationItem,
@@ -8,11 +7,10 @@ import type {
 import { computed, ref } from 'vue';
 
 import { useVbenDrawer } from '@vben-core/popup-ui';
-import { Mail, MailCheck, Megaphone, MessageSquare, Trash2 } from '@vben/icons';
+import { Mail, MailCheck, Megaphone, Trash2 } from '@vben/icons';
 
 import { ElButton, ElEmpty, ElScrollbar, ElTooltip } from 'element-plus';
 
-import UserAvatar from '#/components/user-avatar/index.vue';
 import { ZqTabs } from '#/components/zq-tabs';
 import { $t } from '#/locales';
 
@@ -25,12 +23,8 @@ interface Props {
   announcements?: AnnouncementItem[];
   // 公告未读数
   announcementUnreadCount?: number;
-  // 未读聊天消息列表
-  unreadChats?: ChatMessage[];
-  // 聊天未读总数
-  chatUnreadCount?: number;
   // 当前激活的 Tab
-  activeTab?: 'announcement' | 'chat' | 'message';
+  activeTab?: 'announcement' | 'message';
 }
 
 defineOptions({ name: 'NotificationDrawer' });
@@ -40,18 +34,15 @@ const props = withDefaults(defineProps<Props>(), {
   messageUnreadCount: 0,
   announcements: () => [],
   announcementUnreadCount: 0,
-  unreadChats: () => [],
-  chatUnreadCount: 0,
   activeTab: 'message',
 });
 
 const emit = defineEmits<{
   clear: [];
-  clickChat: [ChatMessage];
   makeAll: [];
   readAnnouncement: [AnnouncementItem];
   readMessage: [NotificationItem];
-  'update:activeTab': ['announcement' | 'chat' | 'message'];
+  'update:activeTab': ['announcement' | 'message'];
   viewAll: [];
 }>();
 
@@ -65,11 +56,6 @@ const tabItems = computed(() => [
     label: `${$t('message.drawer.messageTab')}${props.messageUnreadCount > 0 ? ` (${props.messageUnreadCount})` : ''}`,
     icon: Mail,
   },
-  {
-    key: 'chat',
-    label: `${$t('message.drawer.chatTab')}${props.chatUnreadCount > 0 ? ` (${props.chatUnreadCount})` : ''}`,
-    icon: MessageSquare,
-  },
   {
     key: 'announcement',
     label: `${$t('message.drawer.announcementTab')}${props.announcementUnreadCount > 0 ? ` (${props.announcementUnreadCount})` : ''}`,
@@ -78,34 +64,10 @@ const tabItems = computed(() => [
 ]);
 
 function handleTabChange(value: string) {
-  currentTab.value = value as 'announcement' | 'chat' | 'message';
+  currentTab.value = value as 'announcement' | 'message';
   emit('update:activeTab', currentTab.value);
 }
 
-function handleChatClick(msg: ChatMessage) {
-  emit('clickChat', msg);
-}
-
-function getMessagePreview(msg: ChatMessage): string {
-  if (msg.msg_type === 'text') return msg.content || '';
-  if (msg.msg_type === 'image') return `[${$t('chat.image')}]`;
-  if (msg.msg_type === 'file')
-    return `[${$t('chat.file')}] ${msg.file_name || ''}`;
-  if (msg.msg_type === 'voice') return `[${$t('chat.voice')}]`;
-  return `[${msg.msg_type}]`;
-}
-
-function formatChatTime(datetime?: string): string {
-  if (!datetime) return '';
-  const date = new Date(datetime);
-  const now = new Date();
-  const isToday = date.toDateString() === now.toDateString();
-  if (isToday) {
-    return date.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
-  }
-  return date.toLocaleDateString([], { month: '2-digit', day: '2-digit' });
-}
-
 function handleViewAll() {
   emit('viewAll');
 }
@@ -240,59 +202,6 @@ function getPriorityClass(priority: number): string {
           </template>
         </template>
 
-        <!-- 聊天未读列表 -->
-        <template v-else-if="currentTab === 'chat'">
-          <ElScrollbar v-if="unreadChats.length > 0" class="flex-1">
-            <ul class="flex w-full flex-col gap-2">
-              <template v-for="msg in unreadChats" :key="msg.id">
-                <li
-                  class="relative flex w-full cursor-pointer items-center gap-3 rounded-lg border border-[var(--el-border-color)] p-3 transition-colors hover:bg-[var(--el-fill-color-light)]"
-                  @click="handleChatClick(msg)"
-                >
-                  <UserAvatar
-                    :user-id="msg.sender_id"
-                    :name="msg.sender_name || ''"
-                    :avatar="msg.sender_avatar"
-                    :size="40"
-                    :font-size="16"
-                    :show-popover="false"
-                    class="shrink-0"
-                  />
-                  <div class="flex flex-1 flex-col gap-1 leading-none">
-                    <div class="flex items-center justify-between">
-                      <p class="text-sm font-medium">
-                        {{ msg.sender_name || '' }}
-                      </p>
-                      <span
-                        class="text-xs text-[var(--el-text-color-placeholder)]"
-                      >
-                        {{ formatChatTime(msg.sys_create_datetime) }}
-                      </span>
-                    </div>
-                    <p
-                      class="truncate text-xs text-[var(--el-text-color-secondary)]"
-                    >
-                      {{ getMessagePreview(msg) }}
-                    </p>
-                  </div>
-                </li>
-              </template>
-            </ul>
-          </ElScrollbar>
-
-          <template v-else>
-            <div class="flex flex-1 items-center justify-center">
-              <ElEmpty :description="$t('message.drawer.noChats')">
-                <template #image>
-                  <MessageSquare
-                    class="size-16 text-[var(--el-text-color-placeholder)]"
-                  />
-                </template>
-              </ElEmpty>
-            </div>
-          </template>
-        </template>
-
         <!-- 公告列表 -->
         <template v-else>
           <ElScrollbar v-if="announcements.length > 0" class="flex-1">
diff --git a/web/apps/web-ele/src/layouts/basic.vue b/web/apps/web-ele/src/layouts/basic.vue
index 43d6007..3b9daa9 100644
--- a/web/apps/web-ele/src/layouts/basic.vue
+++ b/web/apps/web-ele/src/layouts/basic.vue
@@ -1,19 +1,11 @@
 <script lang="ts" setup>
-import type { ChatMessage } from '#/api/core/chat';
 import type {
   AnnouncementItem,
   NotificationItem,
 } from '#/composables/useNotification';
 import type { WatchStopHandle } from 'vue';
 
-import {
-  computed,
-  defineAsyncComponent,
-  onUnmounted,
-  ref,
-  watch,
-} from 'vue';
-import { useRouter } from 'vue-router';
+import { computed, defineAsyncComponent, onUnmounted, ref, watch } from 'vue';
 
 import { useWatermark } from '@vben/hooks';
 import { BasicLayout } from '@vben/layouts';
@@ -27,11 +19,13 @@ import { useAuthStore } from '#/store';
 const LoginForm = defineAsyncComponent(
   () => import('#/views/_core/authentication/login.vue'),
 );
-const AuthenticationLoginExpiredModal = defineAsyncComponent(() =>
-  import('@vben/common-ui/es/login-expired-modal'),
+const AuthenticationLoginExpiredModal = defineAsyncComponent(
+  () => import('@vben/common-ui/es/login-expired-modal'),
 );
 const UserDropdown = defineAsyncComponent(() =>
-  import('@vben/layouts/es/user-dropdown').then((module) => module.UserDropdown),
+  import('@vben/layouts/es/user-dropdown').then(
+    (module) => module.UserDropdown,
+  ),
 );
 const NotificationPopup = defineAsyncComponent(
   () => import('#/components/notification/NotificationPopup.vue'),
@@ -41,12 +35,10 @@ const notifications = ref<NotificationItem[]>([]);
 const messageUnreadCount = ref(0);
 const announcements = ref<AnnouncementItem[]>([]);
 const announcementUnreadCount = ref(0);
-const activeTab = ref<'announcement' | 'chat' | 'message'>('message');
+const activeTab = ref<'announcement' | 'message'>('message');
 const showDot = computed(
   () => messageUnreadCount.value + announcementUnreadCount.value > 0,
 );
-const unreadChatMessages = ref<ChatMessage[]>([]);
-const chatTotalUnread = ref(0);
 
 const userStore = useUserStore();
 const authStore = useAuthStore();
@@ -54,9 +46,7 @@ const accessStore = useAccessStore();
 const { destroyWatermark, updateWatermark } = useWatermark();
 
 // 初始化消息通知
-const router = useRouter();
 let notificationApi: any = null;
-let chatApi: any = null;
 let layoutActive = true;
 let realtimeInitializing: Promise<void> | null = null;
 let realtimeInitialized = false;
@@ -67,7 +57,6 @@ onUnmounted(() => {
   stopRealtimeWatches.forEach((stop) => stop());
   stopRealtimeWatches = [];
   notificationApi?.cleanup();
-  chatApi?.disconnectChat();
 });
 
 async function initRealtimeFeatures() {
@@ -81,15 +70,11 @@ async function initRealtimeFeatures() {
 }
 
 async function doInitRealtimeFeatures() {
-  const [notificationModule, chatModule] = await Promise.all([
-    import('#/composables/useNotification'),
-    import('#/views/_core/chat/composables/useChat'),
-  ]);
+  const notificationModule = await import('#/composables/useNotification');
 
   if (!layoutActive) return;
 
   notificationApi = notificationModule.useNotification();
-  chatApi = chatModule.useChat();
 
   stopRealtimeWatches = [
     watch(
@@ -123,30 +108,13 @@ async function doInitRealtimeFeatures() {
     watch(
       notificationApi.activeTab,
       (value) => {
-        activeTab.value = value;
-      },
-      { immediate: true },
-    ),
-    watch(
-      chatApi.unreadChatMessages,
-      (value) => {
-        unreadChatMessages.value = value;
-      },
-      { immediate: true },
-    ),
-    watch(
-      chatApi.totalUnread,
-      (value) => {
-        chatTotalUnread.value = value;
+        activeTab.value = value === 'announcement' ? value : 'message';
       },
       { immediate: true },
     ),
   ];
 
   notificationApi.init();
-  chatApi.connectChat();
-  chatApi.loadConversations();
-  chatApi.loadUnreadChatMessages();
   realtimeInitialized = true;
 }
 
@@ -225,7 +193,7 @@ function handleViewAll() {
   notificationApi?.viewAllMessages();
 }
 
-function handleTabChange(tab: 'announcement' | 'chat' | 'message') {
+function handleTabChange(tab: 'announcement' | 'message') {
   activeTab.value = tab;
   if (notificationApi) {
     notificationApi.activeTab.value = tab;
@@ -236,19 +204,6 @@ function handleNotificationOpen() {
   void initRealtimeFeatures();
 }
 
-function handleChatClick(msg: ChatMessage) {
-  // 新开tab跳转到聊天页面，带上会话ID
-  const url = router.resolve(
-    `/chat?conversationId=${msg.conversation_id}`,
-  ).href;
-  window.open(url, '_blank');
-
-  // 从未读聊天列表中移除
-  const index = unreadChatMessages.value.findIndex((m) => m.id === msg.id);
-  if (index !== -1) {
-    unreadChatMessages.value.splice(index, 1);
-  }
-}
 watch(
   () => ({
     enable: preferences.app.watermark,
@@ -287,16 +242,13 @@ watch(
     </template>
     <template #notification>
       <NotificationPopup
-        :dot="showDot || chatTotalUnread > 0"
+        :dot="showDot"
         :notifications="notifications"
         :message-unread-count="messageUnreadCount"
         :announcements="announcements"
         :announcement-unread-count="announcementUnreadCount"
-        :unread-chats="unreadChatMessages"
-        :chat-unread-count="chatTotalUnread"
         :active-tab="activeTab"
         @clear="handleNoticeClear"
-        @click-chat="handleChatClick"
         @make-all="handleMakeAll"
         @open="handleNotificationOpen"
         @read-message="handleNoticeRead"
@@ -322,7 +274,8 @@ watch(
             sidebarFooterProps?.compact
               ? PRODUCT_BRAND_SHORT
               : $t('ui.layout.poweredBy')
-          }}</span>
+          }}</span
+        >
       </button>
     </template>
     <template #extra>
diff --git a/web/apps/web-ele/src/locales/index.ts b/web/apps/web-ele/src/locales/index.ts
index 0c9ec8c..b34f001 100644
--- a/web/apps/web-ele/src/locales/index.ts
+++ b/web/apps/web-ele/src/locales/index.ts
@@ -30,23 +30,11 @@ const baseModules = import.meta.glob([
 ]);
 
 const businessModules = import.meta.glob([
-  './langs/zh-CN/account-settings.json',
-  './langs/zh-CN/api-token.json',
   './langs/zh-CN/ai-platform.json',
   './langs/zh-CN/announcement.json',
-  './langs/zh-CN/application.json',
-  './langs/zh-CN/chat.json',
-  './langs/zh-CN/dashboard-design.json',
-  './langs/zh-CN/dept.json',
-  './langs/zh-CN/dict.json',
-  './langs/zh-CN/file-manager.json',
-  './langs/zh-CN/loginLog.json',
   './langs/zh-CN/menu.json',
   './langs/zh-CN/message.json',
-  './langs/zh-CN/org-chart.json',
-  './langs/zh-CN/page-manager.json',
   './langs/zh-CN/permission.json',
-  './langs/zh-CN/post.json',
   './langs/zh-CN/role.json',
   './langs/zh-CN/system-config.json',
   './langs/zh-CN/system.json',
diff --git a/web/apps/web-ele/src/router/routes/core.ts b/web/apps/web-ele/src/router/routes/core.ts
index d78d46d..c4b69bd 100644
--- a/web/apps/web-ele/src/router/routes/core.ts
+++ b/web/apps/web-ele/src/router/routes/core.ts
@@ -71,7 +71,7 @@ const coreRoutes: RouteRecordRaw[] = [
       hideInBreadcrumb: true,
       hideInMenu: true,
       hideInTab: true,
-      title: $t('file-manager.filePreview'),
+      title: '文件预览',
     },
   },
 ];
diff --git a/web/apps/web-ele/src/views/_core/file-preview/index.vue b/web/apps/web-ele/src/views/_core/file-preview/index.vue
index ad73765..370d395 100644
--- a/web/apps/web-ele/src/views/_core/file-preview/index.vue
+++ b/web/apps/web-ele/src/views/_core/file-preview/index.vue
@@ -10,6 +10,12 @@ import { ElButton, ElMessage } from 'element-plus';
 import { getFileTypeIcon } from '#/assets/file-icons';
 import { getFileUrl } from '#/composables/useFileUrl';
 
+const FILE_PREVIEW_TITLE = '文件预览';
+const FILE_DOWNLOAD_TEXT = '下载';
+const FILE_DOWNLOAD_FAILED = '下载文件失败';
+const FILE_PREVIEW_FAILED = '预览失败';
+const FILE_PREVIEW_NOT_SUPPORTED = '该文件类型暂不支持预览';
+
 const route = useRoute();
 
 const fileId = computed(() => route.params.id as string);
@@ -20,7 +26,9 @@ const textContent = ref('');
 const errorMsg = ref('');
 const loading = ref(false);
 
-const normalizedExt = computed(() => fileExt.value.toLowerCase().replace('.', ''));
+const normalizedExt = computed(() =>
+  fileExt.value.toLowerCase().replace('.', ''),
+);
 const textExts = new Set([
   'bash',
   'conf',
@@ -87,7 +95,7 @@ async function handleDownload() {
     link.remove();
     window.URL.revokeObjectURL(blobUrl);
   } catch {
-    ElMessage.error($t('file-manager.downloadFailed'));
+    ElMessage.error(FILE_DOWNLOAD_FAILED);
   }
 }
 
@@ -96,7 +104,7 @@ function handleBack() {
 }
 
 onMounted(() => {
-  document.title = fileName.value || $t('file-manager.filePreview');
+  document.title = fileName.value || FILE_PREVIEW_TITLE;
   loadFile();
 });
 </script>
@@ -119,7 +127,7 @@ onMounted(() => {
       </div>
       <ElButton v-if="fileUrl" size="small" @click="handleDownload">
         <Download class="mr-1 size-4" />
-        {{ $t('file-manager.download') }}
+        {{ FILE_DOWNLOAD_TEXT }}
       </ElButton>
     </div>
 
@@ -130,7 +138,7 @@ onMounted(() => {
 
       <div v-else-if="errorMsg" class="max-w-md text-center">
         <p class="mb-2 text-lg text-[var(--el-color-danger)]">
-          {{ $t('file-manager.previewFailed') }}
+          {{ FILE_PREVIEW_FAILED }}
         </p>
         <p class="text-sm text-[var(--el-text-color-secondary)]">
           {{ errorMsg }}
@@ -152,16 +160,17 @@ onMounted(() => {
       <pre
         v-else-if="previewType === 'text'"
         class="h-full w-full overflow-auto bg-[var(--el-fill-color-light)] p-4 text-sm leading-6"
-      >{{ textContent }}</pre>
+        >{{ textContent }}</pre
+      >
 
       <div v-else class="text-center">
         <img :src="getFileTypeIcon(fileExt)" class="mx-auto mb-4 size-20" />
         <p class="mb-4 text-lg text-[var(--el-text-color-secondary)]">
-          {{ $t('file-manager.previewNotSupported') }}
+          {{ FILE_PREVIEW_NOT_SUPPORTED }}
         </p>
         <ElButton v-if="fileUrl" type="primary" @click="handleDownload">
           <Download class="mr-1 size-4" />
-          {{ $t('file-manager.download') }}
+          {{ FILE_DOWNLOAD_TEXT }}
         </ElButton>
       </div>
     </div>