实现报销费用政策与票据明细门禁（08-29-reimbursement-expense-policy-invoice-guard）

server/prisma/schema.prisma

@@ -892,6 +892,7 @@ model ExpenseType {
   category             ExpenseCategory
   sort_order           Int
   account_code_default String?
+  requires_invoice     Boolean         @default(true)
   is_system_default    Boolean         @default(false)
   enabled              Boolean         @default(true)
 
@@ -1500,6 +1501,7 @@ model ReimbursementItem {
   expense_date     DateTime @db.Date
   amount           Decimal  @db.Decimal(14, 2)
   description      String
+  asset_prior_approval_basis String?
 
   created_at DateTime @default(now())
   created_by String?  @db.Uuid