feat: 选票自动生成报销明细并支持集中分类（08-29-reimbursement-expense-policy-invoice-guard）

client/src/api/errorReasons.ts

@@ -1,8 +1,11 @@
 export const ERROR_REASON_MESSAGES: Record<string, string> = {
+  "reimbursement.invoice_prefill_incomplete": "票据日期或金额尚未完整识别，请先处理该票据；其他已识别票据可继续添加。",
+  "reimbursement.items_description_required": "请补充明细的支出说明后再提交。",
   "reimbursement.material_preview_limit": "报销材料较多，暂时无法连续预览，请分批查看材料或联系管理员协助。",
   "purchase_attachment.unsupported_type": "仅支持 PDF、JPG、PNG、WEBP 文件，请重新选择。",
   "reimbursement.invoice_amount_required": "票据金额尚未确认，无法自动生成明细，请先核对票据金额或手动选择明细。",
   "reimbursement.expense_type_required": "当前没有可用费用类型，请联系管理员维护后再添加票据。",
+  "reimbursement.items_expense_type_required": "请补充明细的费用类型；同类明细可批量设置，已停用的类型请重新选择。",
   "reimbursement.invoice_not_bound": "该票据已不再关联业务单据，请刷新票据列表后确认。",
   "reimbursement.invoice_unbind_status_invalid": "报销单当前不能移出票据，请先核实审批和付款状态。",
   "reimbursement.invoice_bind_status_invalid": "报销单当前不能添加票据，请刷新并确认单据状态。",

client/src/api/invoicePool.ts

@@ -129,6 +129,7 @@ export type InvoiceBindPayload =
   | {
       reimbursementId: string;
       linkedItemId?: string;
+      createItem?: true;
     }
   | {
       travelOrderId: string;

client/src/api/reimbursements.ts

@@ -13,7 +13,7 @@ export type ReimbursementStatus =
 
 export type ReimbursementItem = {
   id: string;
-  expenseTypeId: string;
+  expenseTypeId: string | null;
   expenseDate: string | null;
   amount: string;
   description: string | null;
@@ -346,7 +346,7 @@ export type LinkableTravelRequestListResponse = {
 };
 
 export type ReimbursementItemPayload = {
-  expenseTypeId: string;
+  expenseTypeId: string | null;
   expenseDate: string;
   amount: string;
   description?: string;
@@ -356,7 +356,7 @@ export type ReimbursementItemPayload = {
 export type ReimbursementItemMutationResponse = {
   item: {
     id: string;
-    expenseTypeId: string;
+    expenseTypeId: string | null;
     expenseDate: string;
     amount: string;
     description: string | null;