first version

web/domain/iProduct.ts

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+import type IProductCategory from '@/domain/iProductCategory.ts';
+import type ISupplier from '@/domain/iSupplier.ts';
+
+/** 商品等级价格行 */
+export interface IProductPrice {
+  id?: number;
+  product_id?: number;
+  level_id?: number;
+  price?: string | number;
+  level?: { id: number; name: string };
+}
+
+/** 商品档案 */
+export default interface IProduct {
+  id?: number;
+  category_id?: number;
+  supplier_id?: number;
+  name?: string;
+  /** 规格/包规 */
+  spec?: string;
+  /** 商品等级 */
+  grade?: string;
+  /** 计价单位 */
+  unit?: string;
+  image?: string;
+  sort?: number;
+  status?: number;
+  remark?: string;
+  category?: IProductCategory;
+  supplier?: ISupplier;
+  /** 多等级价格 */
+  prices?: IProductPrice[];
+  created_at?: string;
+}
+
+export const PRODUCT_STATUS_MAP: Record<number, { text: string; color: string }> = {
+  0: { text: '下架', color: 'default' },
+  1: { text: '上架', color: 'success' },
+};
+
+/** 价格矩阵行（price_{level_id} 动态列） */
+export type IPriceMatrixRow = {
+  id: number;
+  name: string;
+  spec?: string;
+  unit?: string;
+} & Record<string, string | number | null | undefined>;
+
+export interface IPriceMatrix {
+  levels: { id: number; name: string }[];
+  rows: IPriceMatrixRow[];
+}
+
+export interface IBatchPriceUpdate {
+  product_id: number;
+  level_id: number;
+  price: number | string;
+}