test(server): 适配 A/R/D 紧凑单号格式

- approval_routing/service/user_agent 测试中报销单查询统一兼容 RE- 旧格式与 R+8 新格式，申请单单号断言改为短格式
- generate_claim_no 用例重命名为短前缀校验，正则改为 R[A-HJ-NP-Z2-9]{8}
- 同步更新差旅/交通/通信等财务规则表

server/tests/test_expense_claim_approval_routing.py

@@ -5,7 +5,7 @@ from datetime import UTC, datetime
 from decimal import Decimal
 
 import pytest
-from sqlalchemy import create_engine
+from sqlalchemy import create_engine, or_
 from sqlalchemy.orm import Session, sessionmaker
 from sqlalchemy.pool import StaticPool
 
@@ -36,6 +36,15 @@ def build_session() -> Session:
     return session_factory()
 
 
+def reimbursement_claim_query(db: Session):
+    return db.query(ExpenseClaim).filter(
+        or_(
+            ExpenseClaim.claim_no.like("RE-%"),
+            ExpenseClaim.claim_no.like("R________"),
+        )
+    )
+
+
 def _seed_budget_monitor_role(db: Session) -> Role:
     role = Role(role_code="budget_monitor", name="预算管理员")
     db.add(role)
@@ -149,7 +158,7 @@ def test_low_risk_application_skips_budget_manager_and_generates_draft() -> None
         assert approved is not None
         assert approved.status == "approved"
         assert approved.approval_stage == APPLICATION_LINK_STATUS_STAGE
-        assert db.query(ExpenseClaim).filter(ExpenseClaim.claim_no.like("RE-%")).count() == 1
+        assert reimbursement_claim_query(db).count() == 1
         assert any(
             isinstance(flag, dict)
             and flag.get("source") == "approval_routing"