修复审批详情报销入口（07-27-yang-jun-reimbursement-readiness）

client/src/pages/WorkflowTaskDetailPage.tsx

@@ -398,6 +398,17 @@ export function WorkflowTaskDetailPage() {
                   </>
                 ) : null}
               </dl>
+
+              {detail.reimbursement ? (
+                <Button asChild variant="secondary">
+                  <Link
+                    data-testid="workflow-task-reimbursement-detail-link"
+                    to={`/reimbursements/${encodeURIComponent(detail.reimbursement.id)}`}
+                  >
+                    查看报销单
+                  </Link>
+                </Button>
+              ) : null}
             </div>
           </SectionPanel>