初始化v1

src/main/java/com/nlshop/entity/OrderItem.java

@@ -0,0 +1,19 @@
+package com.nlshop.entity;
+
+import lombok.Data;
+import java.math.BigDecimal;
+
+@Data
+public class OrderItem {
+    private Long id;
+    private Long orderId;
+    private Long productId;
+    private String productName;
+    private String specName;
+    private Integer quantity;
+    private BigDecimal price;
+    private String customSweetness;
+    private String customIce;
+    private String toppings; // JSON格式
+    private BigDecimal subtotal;
+}