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/src/app/services/orchestrator_expense_query.py

@@ -570,7 +570,7 @@ class OrchestratorDatabaseQueryBuilder:
                 scoped_to_current_user = True
             else:
                 conditions.append(ExpenseClaim.id == "__no_visible_claim__")
-                scope_label = "你的报销单"
+                scope_label = "您的报销单"
                 scoped_to_current_user = True
         elif explicit_employee_names:
             conditions.append(ExpenseClaim.employee_name.in_(explicit_employee_names))
@@ -586,7 +586,7 @@ class OrchestratorDatabaseQueryBuilder:
                 scoped_to_current_user = True
             else:
                 conditions.append(ExpenseClaim.id == "__no_visible_claim__")
-                scope_label = "你的报销单"
+                scope_label = "您的报销单"
                 scoped_to_current_user = True
         else:
             scope_label = "全部报销单"
@@ -703,7 +703,7 @@ class OrchestratorDatabaseQueryBuilder:
 
         subject_name = (employee.name if employee is not None else "") or normalized_user_id
         if subject_name:
-            return conditions, "你的报销单"
+            return conditions, "您的报销单"
         return conditions, "当前用户的报销单"
 
     def _employee_name_is_unique(self, employee: Employee) -> bool: