feat: 报销预审会话状态管理与工作台交互增强

- 新增差旅报销会话状态管理与对话模型重构
- 增强风险观测服务与运行时聊天上下文作用域
- 优化工作台图标资源、助理意图识别与摘要工具
- 完善报销创建视图样式与差旅详情页标准调整交互
- 补充风险观测、运行时聊天与报销端点测试覆盖

web/src/utils/workbenchSummary.js

@@ -245,10 +245,14 @@ function buildProgressItems(ownedRequests) {
       const title = normalizeText(request?.title || request?.note || request?.sceneLabel) || '费用单据'
 
       const status = normalizeText(request?.approvalStatus || currentStep?.label) || '处理中'
+      const isApplication = title.includes('申请') || (requestId || '').toUpperCase().startsWith('SQ') || (requestId || '').toUpperCase().startsWith('CL')
+      const documentTypeLabel = isApplication ? '申请单' : '报销单'
+
       return {
         id: requestId,
         requestId,
         title,
+        documentTypeLabel,
         expenseTypeLabel: resolveExpenseCategory(request),
         amount: formatCurrency(request?.amount),
         status,