feat: implement receipt alias functionality with CRUD operations and integrate with receipt import

backend/src/receipt-alias/dto/create-receipt-alias.dto.ts

@@ -0,0 +1,10 @@
+import { IsInt, IsString, MinLength } from 'class-validator';
+
+export class CreateReceiptAliasDto {
+  @IsString()
+  @MinLength(1)
+  receiptName!: string;
+
+  @IsInt()
+  productId!: number;
+}