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

server/src/app/services/expense_claim_pagination.py

@@ -29,7 +29,9 @@ class ExpenseClaimPaginationMixin:
             ExpenseClaim.occurred_at.desc(),
         )
         stmt = self._access_policy.apply_claim_scope(stmt, current_user)
-        return paginate_select(self.db, stmt, page=page, page_size=page_size)
+        result = paginate_select(self.db, stmt, page=page, page_size=page_size)
+        self._access_policy.attach_budget_approval_snapshots(result.items)
+        return result
 
     def list_approval_claims_page(
         self,
@@ -43,7 +45,9 @@ class ExpenseClaimPaginationMixin:
             ExpenseClaim.created_at.desc(),
         )
         stmt = self._access_policy.apply_approval_claim_scope(stmt, current_user)
-        return paginate_select(self.db, stmt, page=page, page_size=page_size)
+        result = paginate_select(self.db, stmt, page=page, page_size=page_size)
+        self._access_policy.attach_budget_approval_snapshots(result.items)
+        return result
 
     def list_archived_claims_page(
         self,