feat: 完善文档中心与报销申请交互及侧边栏重构

后端优化编排器报销查询和本体检测精度，增强报销单草稿保
存和附件回填逻辑，前端重构侧边栏组件支持折叠和图标导
航，完善文档中心状态筛选和详情提示，报销创建和审批详情
页优化会话管理和费用明细交互，新增助手应用服务和预设动
作工具函数，补充单元测试覆盖。

web/src/views/scripts/travelRequestDetailExpenseModel.js

@@ -49,6 +49,32 @@ export function normalizeExpenseType(value) {
   return String(value || '').trim() || 'other'
 }
 
+export function isApplicationDocumentRequest(request) {
+  const documentType = String(
+    request?.documentTypeCode
+    || request?.document_type_code
+    || request?.documentType
+    || request?.document_type
+    || ''
+  ).trim()
+  const claimNo = String(
+    request?.claimNo
+    || request?.claim_no
+    || request?.documentNo
+    || request?.id
+    || ''
+  ).trim().toUpperCase()
+  const typeCode = normalizeExpenseType(request?.typeCode || request?.expense_type)
+
+  return (
+    documentType === 'application'
+    || documentType === 'expense_application'
+    || claimNo.startsWith('APP-')
+    || typeCode === 'application'
+    || typeCode.endsWith('_application')
+  )
+}
+
 export function resolveExpenseTypeLabel(value) {
   const normalized = normalizeExpenseType(value)
   return EXPENSE_TYPE_OPTIONS.find((option) => option.value === normalized)?.label
@@ -131,7 +157,41 @@ export function resolveExpenseDescriptionDetail(itemType, itemLocation) {
   return resolveLocationDisplay(itemLocation, itemType)
 }
 
-export function buildFallbackProgressSteps() {
+export function buildFallbackProgressSteps(requestModel = {}) {
+  if (isApplicationDocumentRequest(requestModel)) {
+    const node = String(requestModel?.node || requestModel?.workflowNode || requestModel?.approvalStage || '').trim()
+    const approvalKey = String(requestModel?.approvalKey || '').trim()
+    const completed = approvalKey === 'completed' || /审批完成|申请完成|已完成/.test(node)
+    const inLeaderApproval = approvalKey === 'in_progress' || /直属领导|领导审批|审批中/.test(node)
+
+    return [
+      {
+        index: 1,
+        label: '创建申请',
+        time: completed || inLeaderApproval ? '已完成' : '进行中',
+        done: completed || inLeaderApproval,
+        active: true,
+        current: !(completed || inLeaderApproval)
+      },
+      {
+        index: 2,
+        label: '直属领导审批',
+        time: completed ? '已完成' : inLeaderApproval ? '进行中' : '待处理',
+        done: completed,
+        active: completed || inLeaderApproval,
+        current: !completed && inLeaderApproval
+      },
+      {
+        index: 3,
+        label: '审批完成',
+        time: completed ? '已完成' : '待处理',
+        done: completed,
+        active: completed,
+        current: false
+      }
+    ]
+  }
+
   return [
     { index: 1, label: '创建单据', time: '已完成', done: true, active: true },
     { index: 2, label: '待提交', time: '进行中', active: true, current: true },
@@ -143,6 +203,10 @@ export function buildFallbackProgressSteps() {
 }
 
 export function buildFallbackExpenseItems(request) {
+  if (isApplicationDocumentRequest(request)) {
+    return []
+  }
+
   return [
     buildExpenseItemViewModel({
       id: 'fallback-1',
@@ -413,6 +477,10 @@ export function buildExpenseDraftIssues(item) {
 }
 
 export function buildOptionalTravelReceiptRiskCards(requestModel, items) {
+  if (isApplicationDocumentRequest(requestModel)) {
+    return []
+  }
+
   const normalizedItems = Array.isArray(items) ? items : []
   const isTravelContext =
     requestModel?.detailVariant === 'travel' ||