feat: 增强风险规则生成引擎与预算中心页面

后端拆分风险规则生成为解释器、语义分析、本体对齐等子模块，
优化模板执行和流程图生成，完善员工种子数据和导入逻辑，增强
报销单权限策略和草稿持久化，前端新增预算中心视图和趋势图
组件，重构审计页面和风险规则测试对话框交互，完善文档中心
和报销创建页面细节，补充单元测试覆盖。

web/src/components/layout/SidebarRail.vue

@@ -33,6 +33,7 @@
       >
         <span class="nav-icon" v-html="item.icon"></span>
         <span class="nav-label">{{ item.displayLabel }}</span>
+        <span v-if="item.hasNewMessage" class="nav-unread-dot" aria-hidden="true"></span>
         <span v-if="item.badge" class="nav-badge">{{ item.badge }}</span>
       </button>
     </nav>
@@ -83,7 +84,7 @@
 <script setup>
 import { computed, onBeforeUnmount, onMounted, reactive, ref, watch } from 'vue'
 
-import { useApprovalInbox } from '../../composables/useApprovalInbox.js'
+import { useDocumentCenterInbox } from '../../composables/useDocumentCenterInbox.js'
 
 const props = defineProps({
   navItems: { type: Array, required: true },
@@ -113,19 +114,17 @@ const props = defineProps({
 const emit = defineEmits(['navigate', 'openChat', 'logout', 'toggle-collapse'])
 
 const {
-  badgeLabel: approvalBadgeLabel,
-  refreshApprovalInbox,
-  startApprovalInboxPolling,
-  stopApprovalInboxPolling
-} = useApprovalInbox()
+  hasUnread: documentInboxHasUnread,
+  refreshDocumentInbox,
+  startDocumentInboxPolling,
+  stopDocumentInboxPolling
+} = useDocumentCenterInbox()
 
 const sidebarMeta = {
   overview: { label: '财务总览' },
   workbench: { label: '个人工作台' },
   documents: { label: '单据中心' },
-  requests: { label: '报销中心' },
-  approval: { label: '审批中心' },
-  archive: { label: '归档中心' },
+  budget: { label: '预算中心' },
   policies: { label: '知识管理' },
   audit: { label: '任务规则中心' },
   logs: { label: '日志管理' },
@@ -137,13 +136,14 @@ const decoratedNavItems = computed(() =>
   props.navItems.map((item) => ({
     ...item,
     displayLabel: sidebarMeta[item.id]?.label ?? item.label,
-    badge: item.id === 'approval' ? approvalBadgeLabel.value : sidebarMeta[item.id]?.badge
+    hasNewMessage: item.id === 'documents' ? documentInboxHasUnread.value : false,
+    badge: sidebarMeta[item.id]?.badge
   }))
 )
 
 onMounted(() => {
-  void refreshApprovalInbox()
-  startApprovalInboxPolling()
+  void refreshDocumentInbox()
+  startDocumentInboxPolling()
 })
 
 
@@ -238,7 +238,7 @@ watch(
 )
 
 onBeforeUnmount(() => {
-  stopApprovalInboxPolling()
+  stopDocumentInboxPolling()
   closeCollapsedUserMenuNow()
 })
 </script>
@@ -463,6 +463,16 @@ onBeforeUnmount(() => {
     opacity var(--rail-fade-duration) var(--rail-motion-ease);
 }
 
+.nav-unread-dot {
+  flex: 0 0 auto;
+  width: 8px;
+  height: 8px;
+  border: 2px solid #fff;
+  border-radius: 999px;
+  background: #ef4444;
+  box-shadow: 0 6px 14px rgba(239, 68, 68, 0.26);
+}
+
 .rail-user {
   position: relative;
   min-width: 0;
@@ -668,6 +678,14 @@ onBeforeUnmount(() => {
   overflow: hidden;
 }
 
+.rail-collapsed .nav-unread-dot {
+  position: absolute;
+  top: 10px;
+  right: 11px;
+  width: 9px;
+  height: 9px;
+}
+
 .rail-collapsed {
   overflow: visible;
 }