refactor(server): user_agent/steward/ocr 等服务重构并适配关联任务

- user_agent 拆分 application/locations/knowledge/response/review 四个子模块，接入申请位置语义与关联草稿分支
- steward planner/runtime/slot/plan_builder 决策链路重构，travel_reimbursement_calculator/orchestrator_expense_query 适配
- ocr/document_preview/document_intelligence/receipt_folder 复用预览与资产缓存，expense_claim_draft_flow/application_handoff 适配
- pyproject.toml 新增依赖，paddleocr bootstrap 脚本与 server_start.sh 调整
- 更新差旅/交通/通信等财务规则表，同步 document_intelligence/ocr/receipt_folder/user_agent 等测试

server/tests/test_agent_asset_service.py

@@ -888,6 +888,34 @@ def test_travel_reimbursement_calculator_rejects_unrecognized_location() -> None
             )
 
 
+def test_travel_reimbursement_calculator_normalizes_location_mixed_with_business_content() -> None:
+    with build_session() as db:
+        db.add(
+            Employee(
+                employee_no="E9004",
+                name="混合地点员工",
+                email="mixed-location@example.com",
+                position="产品经理",
+                grade="P4",
+            )
+        )
+        db.commit()
+
+        result = TravelReimbursementCalculatorService(db).calculate(
+            TravelReimbursementCalculatorRequest(days=4, location="上海辅助国网仿生产服务器"),
+            CurrentUserContext(
+                username="mixed-location@example.com",
+                name="混合地点员工",
+                role_codes=[],
+                is_admin=False,
+            ),
+        )
+
+        assert result.location == "上海市"
+        assert result.matched_city == "上海"
+        assert result.hotel_amount > 0
+
+
 def test_agent_run_service_lists_seeded_trace_data() -> None:
     with build_session() as db:
         service = AgentRunService(db)