feat: 新增预算费控模型与报销审批流引擎

后端新增预算费控服务和报销单审批流模块，引入申请人费用画像
算法，优化知识库 RAG 运行时和同步逻辑，完善报销单工作流常
量和明细同步，更新差旅报销规则电子表格，前端新增预算分析
组件和数字员工模型，完善审批对话框和洞察面板交互，优化侧
边栏和顶栏样式，补充单元测试。

web/src/views/TravelRequestDetailView.vue

@@ -177,6 +177,11 @@
                 </div>
               </div>
 
+              <TravelRequestBudgetAnalysis
+                v-if="showBudgetAnalysis"
+                :claim-id="request.claimId"
+              />
+
               <div v-if="showApplicationLeaderOpinion" class="application-leader-opinion">
                 <div class="application-leader-opinion-head">
                   <span><i class="mdi mdi-account-tie-outline"></i>领导意见</span>
@@ -760,10 +765,6 @@
       :confirm-text="approveConfirmText"
       :busy-text="approveBusyText"
       :busy="approveBusy"
-      :document-no="request.documentNo || request.id"
-      :node="request.node"
-      :summary-label="approvalConfirmSummaryLabel"
-      :next-stage="approvalNextStage"
       :opinion-title="approvalOpinionTitle"
       v-model:opinion="leaderOpinion"
       :opinion-placeholder="approvalOpinionPlaceholder"