feat(shop): 添加客户编号查询功能

- 在 ShopDealerApplyParam 中新增 dealerCode 字段用于客户编号查询
- 在 ShopDealerApplyMapper.xml 中添加 dealer_code 查询条件
- 实现按客户编号精确匹配的查询逻辑
- 更新参数校验和文档注释

src/main/java/com/gxwebsoft/shop/mapper/xml/ShopDealerApplyMapper.xml

@@ -40,6 +40,9 @@
             <if test="param.dealerName != null">
               AND a.dealer_name LIKE CONCAT('%', #{param.dealerName}, '%')
             </if>
+            <if test="param.dealerCode != null">
+              AND a.dealer_code = #{param.dealerCode}
+            </if>
             <if test="param.refereeId != null">
                 AND a.referee_id = #{param.refereeId}
             </if>

src/main/java/com/gxwebsoft/shop/param/ShopDealerApplyParam.java

@@ -34,6 +34,9 @@ public class ShopDealerApplyParam extends BaseParam {
     @QueryField(type = QueryType.EQ)
     private Integer userId;
 
+    @Schema(description = "客户编号")
+    private String dealerCode;
+
     @Schema(description = "姓名")
     private String realName;