feat(web): AI 文档查询卡片重构与单号判定统一

- documentClassification 抽出 isApplicationDocumentNo，统一兼容 AP-/APP- 旧格式与 A+8 新格式，aiDocumentQueryModel 复用
- aiDocumentQueryModel 文档卡片改为结构化字段布局（单据类型/金额/申请人/编号/操作），新增查询范围摘要区，渲染走 HTML 信任块
- AppShellRouteView/useAppShell/useRequests/detailAlerts/riskVisibility 等差旅详情模型适配单号判定
- 同步更新 ai-document-query-model/workbench-ai-mode-switch 测试，新增 document-classification 测试

web/src/views/AppShellRouteView.vue

@@ -273,7 +273,27 @@ const sidebarCollapsed = ref(false)
 const sidebarCollapsedBeforeAiMode = ref(false)
 const mobileSidebarOpen = ref(false)
 const overviewDashboard = ref('finance')
-const workbenchMode = ref('traditional')
+const { companyProfile, currentUser, logout } = useSystemState()
+
+function resolveDefaultWorkbenchMode(user) {
+  return isPlatformAdminUser(user) ? 'traditional' : 'ai'
+}
+
+function resolveWorkbenchUserKey(user = {}) {
+  const roleCodes = Array.isArray(user?.roleCodes) ? user.roleCodes.join(',') : ''
+  return [
+    user?.id,
+    user?.userId,
+    user?.username,
+    user?.account,
+    user?.name,
+    user?.role,
+    roleCodes,
+    user?.isAdmin ? 'admin' : 'user'
+  ].map((item) => String(item || '').trim()).join('|')
+}
+
+const workbenchMode = ref(resolveDefaultWorkbenchMode(currentUser.value))
 const aiSidebarCommandSeq = ref(0)
 const aiSidebarCommand = ref({ seq: 0, type: '', payload: null })
 const aiActiveConversationId = ref('')
@@ -343,7 +363,6 @@ const {
   topBarView
 } = useAppShell()
 
-const { companyProfile, currentUser, logout } = useSystemState()
 const PRODUCT_DISPLAY_NAME = '易财费控'
 const ENTERPRISE_DISPLAY_NAME = '远光软件股份有限公司'
 const filteredNavItems = computed(() => filterNavItemsByAccess(navItems, currentUser.value))
@@ -496,7 +515,14 @@ function handleLogout() {
 
 watch(
   () => currentUser.value,
-  (user) => {
+  (user, previousUser) => {
+    if (resolveWorkbenchUserKey(user) !== resolveWorkbenchUserKey(previousUser)) {
+      const nextMode = resolveDefaultWorkbenchMode(user)
+      workbenchMode.value = nextMode
+      if (nextMode === 'ai') {
+        sidebarCollapsed.value = false
+      }
+    }
     aiConversationHistory.value = loadAiWorkbenchConversationHistory(user || {})
   },
   { immediate: true }