diff --git a/web/src/composables/useAppShell.js b/web/src/composables/useAppShell.js
index 39a4aad..cac5b11 100644
--- a/web/src/composables/useAppShell.js
+++ b/web/src/composables/useAppShell.js
@@ -3,16 +3,13 @@ import { useRoute, useRouter } from 'vue-router'
 
 import { useNavigation, navItems } from './useNavigation.js'
 import { useRequests } from './useRequests.js'
-import { useChat } from './useChat.js'
 import { useToast } from './useToast.js'
-import { documents } from '../data/requests.js'
 import { normalizeRequestForUi } from '../utils/requestViewModel.js'
 
 export function useAppShell() {
   const route = useRoute()
   const router = useRouter()
 
-  const travelCreateMode = ref(false)
   const smartEntryOpen = ref(false)
   const smartEntryContext = ref({ prompt: '', source: 'requests', request: null, files: [], conversation: null })
   const smartEntrySessionId = ref(0)
@@ -31,24 +28,9 @@ export function useAppShell() {
     rejectRequest,
     reload: reloadRequests
   } = useRequests()
-  const {
-    messages,
-    draft,
-    uploadedFiles,
-    messageList,
-    activeCase,
-    prompts,
-    sending,
-    sendMessage,
-    handleUpload,
-    openChat,
-    openNewChat
-  } = useChat(activeView)
   const { toast } = useToast()
 
-  const docSearch = ref('')
   const customRange = ref({ start: '2024-07-06', end: '2024-07-12' })
-  const travelPrompts = ['生成差旅摘要', '识别报销风险', '核对审批链', '提取随附票据', '生成沟通建议']
 
   const selectedRequest = computed(() => {
     const requestId = String(route.params.requestId || '')
@@ -102,11 +84,6 @@ export function useAppShell() {
     )
   )
 
-  const filteredDocuments = computed(() => {
-    const key = docSearch.value.trim().toLowerCase()
-    return documents.filter((doc) => !key || `${doc.id}${doc.applicant}${doc.destination}${doc.type}`.toLowerCase().includes(key))
-  })
-
   function handleApprove(request) {
     const message = approveRequest(request)
     toast(message)
@@ -118,26 +95,18 @@ export function useAppShell() {
   }
 
   function handleNavigate(view) {
-    travelCreateMode.value = false
     smartEntryOpen.value = false
     setView(view)
   }
 
-  function handleOpenChat(request) {
-    travelCreateMode.value = false
-    openChat(request)
-  }
-
   function openTravelCreate() {
     smartEntryOpen.value = true
-    travelCreateMode.value = false
     smartEntryContext.value = { prompt: '', source: 'topbar', request: null, files: [], conversation: null }
     smartEntrySessionId.value += 1
   }
 
   function openSmartEntry(payload = {}) {
     smartEntryOpen.value = true
-    travelCreateMode.value = false
 
     smartEntryContext.value = {
       prompt: payload.prompt ?? '',
@@ -190,28 +159,18 @@ export function useAppShell() {
     currentView,
     customRange,
     detailMode,
-    docSearch,
-    draft,
-    filteredDocuments,
     filteredRequests,
     filters,
     handleApprove,
     handleDraftSaved,
     handleNavigate,
-    handleOpenChat,
     handleReject,
     handleRequestDeleted,
     handleRequestUpdated,
-    handleUpload,
-    messageList,
-    messages,
     navItems,
-    openChat,
-    openNewChat,
     openRequestDetail,
     openSmartEntry,
     openTravelCreate,
-    prompts,
     ranges,
     requestSummary,
     requestsError,
@@ -220,16 +179,11 @@ export function useAppShell() {
     requests,
     search,
     selectedRequest,
-    sendMessage,
-    sending,
     setView,
     smartEntryContext,
     smartEntryOpen,
     smartEntrySessionId,
     toast,
-    topBarView,
-    travelCreateMode,
-    travelPrompts,
-    uploadedFiles
+    topBarView
   }
 }
diff --git a/web/src/composables/useNavigation.js b/web/src/composables/useNavigation.js
index 770b433..33cd0dd 100644
--- a/web/src/composables/useNavigation.js
+++ b/web/src/composables/useNavigation.js
@@ -3,7 +3,7 @@ import { useRoute, useRouter } from 'vue-router'
 
 import { icons } from '../data/icons.js'
 
-export const appViews = ['overview', 'workbench', 'requests', 'approval', 'chat', 'policies', 'audit', 'employees', 'settings']
+export const appViews = ['overview', 'workbench', 'requests', 'approval', 'policies', 'audit', 'employees', 'settings']
 
 export const navItems = [
   {
@@ -38,21 +38,13 @@ export const navItems = [
     title: '审批中心',
     desc: '按优先级处理待审批事项，控制时效与风险。'
   },
-  {
-    id: 'chat',
-    label: '财务知识问答',
-    navHint: '进入财务知识问答',
-    icon: icons.message,
-    title: '财务知识问答',
-    desc: '围绕制度、票据、审批、报销与财务规则进行快速问答。'
-  },
   {
     id: 'policies',
     label: '制度知识',
     navHint: '查看制度与知识库',
     icon: icons.file,
     title: '制度与知识库',
-    desc: '统一管理制度文档、知识问答和搜索入口。'
+    desc: '统一管理制度文档、检索入口与知识资产。'
   },
   {
     id: 'audit',
@@ -85,7 +77,6 @@ const viewRouteNames = {
   workbench: 'app-workbench',
   requests: 'app-requests',
   approval: 'app-approval',
-  chat: 'app-chat',
   policies: 'app-policies',
   audit: 'app-audit',
   employees: 'app-employees',
diff --git a/web/src/utils/accessControl.js b/web/src/utils/accessControl.js
index 16c1986..4e6c2c3 100644
--- a/web/src/utils/accessControl.js
+++ b/web/src/utils/accessControl.js
@@ -1,16 +1,15 @@
-export const DEFAULT_APP_VIEW_ORDER = [
-  'overview',
-  'workbench',
-  'requests',
-  'approval',
-  'chat',
-  'policies',
-  'audit',
-  'employees',
-  'settings'
-]
-
-const ALWAYS_VISIBLE_VIEWS = new Set(['workbench', 'requests', 'chat', 'policies'])
+export const DEFAULT_APP_VIEW_ORDER = [
+  'overview',
+  'workbench',
+  'requests',
+  'approval',
+  'policies',
+  'audit',
+  'employees',
+  'settings'
+]
+
+const ALWAYS_VISIBLE_VIEWS = new Set(['workbench', 'requests', 'policies'])
 const VIEW_ROLE_RULES = {
   overview: ['finance', 'executive'],
   approval: ['approver'],