feat: 本体字段治理与风险规则模板执行器重构

- 新增本体字段注册表与字段治理审计脚本
- 重构风险规则模板执行器、DSL 验证与清单分类器
- 完善票据夹服务与差旅请求详情页交互
- 优化趋势图表与总览页数据展示
- 增强报销平台风险分级与模拟公司筛选
- 补充本体字段、风险规则生成与票据夹服务测试覆盖

server/src/app/schemas/reimbursement.py

@@ -39,6 +39,7 @@ class ExpenseClaimItemRead(BaseModel):
     item_type: str
     item_reason: str
     item_location: str
+    item_note: str = ""
     item_amount: Decimal
     invoice_id: str | None
     is_system_generated: bool = False
@@ -101,6 +102,7 @@ class ExpenseClaimItemUpdate(BaseModel):
     item_type: str | None = None
     item_reason: str | None = None
     item_location: str | None = None
+    item_note: str | None = None
     item_amount: Decimal | None = None
     invoice_id: str | None = None
 
@@ -110,6 +112,7 @@ class ExpenseClaimItemCreate(BaseModel):
     item_type: str | None = None
     item_reason: str | None = None
     item_location: str | None = None
+    item_note: str | None = None
     item_amount: Decimal | None = None
     invoice_id: str | None = None
 
@@ -203,6 +206,7 @@ class ExpenseClaimAttachmentActionResponse(BaseModel):
     item_type: str | None = None
     item_reason: str | None = None
     item_location: str | None = None
+    item_note: str | None = None
     item_amount: Decimal | None = None
     claim_amount: Decimal | None = None
     claim_risk_flags: list[Any] = Field(default_factory=list)