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/expense_claims.py

@@ -688,6 +688,13 @@ class ExpenseClaimItemActionMixin:
 
         before_json = self._serialize_claim(claim)
         resource_id = claim.id
+        operator = self._access_policy.resolve_current_user_display_name(current_user)
+        if not self._is_expense_application_claim(claim):
+            self._sync_linked_applications_after_reimbursement_deleted(
+                reimbursement_claim=claim,
+                operator=operator,
+                current_user=current_user,
+            )
 
         self._release_budget_for_delete(claim, current_user)
         self._delete_claim_analysis_records(resource_id)
@@ -1008,4 +1015,3 @@ class ExpenseClaimService(ExpenseClaimStandardAdjustmentMixin, ExpenseClaimItemA
         )
 
         return claim
-