feat: 新增预算后端服务与差旅风险规则库

后端新增预算模型、端点和服务模块，支持预算 CRUD 和余额
查询，清理旧生成规则文件并替换为按严重等级分类的差旅风
险规则库，优化认证权限和报销单访问策略，新增财务规则目
录和演示数据构建脚本，前端预算中心增加对话框交互，完善
审计页面运行时模型和元数据展示，补充单元测试。

web/src/utils/budgetOntology.js

@@ -119,16 +119,16 @@ export const BUDGET_CONTROL_ACTION_OPTIONS = ['正常', '提醒', '管控']
 export const BUDGET_YEAR_OPTIONS = ['2026', '2027', '2028']
 export const BUDGET_QUARTER_OPTIONS = ['Q1', 'Q2', 'Q3', 'Q4']
 export const BUDGET_EXPENSE_TYPE_OPTIONS = Object.freeze([
-  { value: 'travel', label: '差旅费' },
+  { value: 'travel', label: '差旅' },
   { value: 'hotel', label: '住宿费' },
   { value: 'transport', label: '交通费' },
-  { value: 'meal', label: '业务招待费' },
+  { value: 'meal', label: '招待费' },
   { value: 'meeting', label: '会务费' },
   { value: 'marketing', label: '市场推广费' },
-  { value: 'office', label: '办公用品费' },
+  { value: 'office', label: '办公用品' },
   { value: 'training', label: '培训费' },
   { value: 'software', label: '软件服务费' },
-  { value: 'communication', label: '通讯费' },
+  { value: 'communication', label: '通信' },
   { value: 'welfare', label: '福利费' }
 ])
 
@@ -139,6 +139,17 @@ const BUDGET_EXPENSE_TYPE_BY_CODE = Object.freeze(
   }, {})
 )
 
+export const BUDGET_VISIBLE_EXPENSE_TYPE_CODES = Object.freeze([
+  'travel',
+  'communication',
+  'meal',
+  'office'
+])
+
+export const BUDGET_VISIBLE_EXPENSE_TYPE_OPTIONS = Object.freeze(
+  BUDGET_VISIBLE_EXPENSE_TYPE_CODES.map((code) => BUDGET_EXPENSE_TYPE_BY_CODE[code]).filter(Boolean)
+)
+
 export function resolveBudgetExpenseTypeLabel(code, fallback = '') {
   return BUDGET_EXPENSE_TYPE_BY_CODE[String(code || '').trim()]?.label || fallback
 }