feat: 扩展风险规则体系、审批动态路由与预算中心列表化改造

- 新增 25+ 条风险规则（预算/报销/申请/通用类），完善风险规则模拟与反馈发布机制
- 引入费用审批动态路由、平台风险分级、预审与风险阶段管理
- 预算中心列表化改造，优化票据夹仪表盘与数字员工工作看板
- 新增 Hermes 风险线索收集器、Agent 链路追踪中心
- 扩展数字员工能力库（18 个领域 Skill）与交通费用自动预估
- 完善报销申请快速预览、权限控制与前端测试覆盖

web/src/components/layout/TopBar.vue

@@ -281,7 +281,7 @@ const emit = defineEmits([
 const isChat = computed(() => props.activeView === 'chat')
 const isOverview = computed(() => props.activeView === 'overview')
 const isWorkbench = computed(() => props.activeView === 'workbench')
-const isRequestDetail = computed(() => ['requests', 'documents', 'audit', 'digitalEmployees', 'receiptFolder'].includes(props.activeView) && props.detailMode)
+const isRequestDetail = computed(() => ['requests', 'documents', 'audit', 'digitalEmployees', 'receiptFolder', 'budget'].includes(props.activeView) && props.detailMode)
 const isDocuments = computed(() => props.activeView === 'documents' && !props.detailMode)
 const isRequests = computed(() => props.activeView === 'requests')
 const isDigitalEmployees = computed(() => props.activeView === 'digitalEmployees')
@@ -447,6 +447,7 @@ const draftEnd = ref(props.customRange.end)
 const overviewDashboardOptions = [
   { label: '财务看板', value: 'finance' },
   { label: '风险看板', value: 'risk' },
+  { label: '数字员工看板', value: 'digitalEmployee' },
   { label: '系统看板', value: 'system' }
 ]
 const overviewDashboardValue = computed({