feat(pricing): 添加优惠券管理功能

- 新增 CouponManagementController 控制器，实现优惠券配置和领取记录的管理
- 新增 ICouponManagementService 接口和 CouponManagementServiceImpl 实现类，提供优惠券管理服务
- 在 PricingConfigController 中添加获取所有优惠券配置和领取记录的接口
- 新增 BundleProductListTypeHandler 类，用于处理一口价商品列表的序列化和反序列化
- 更新 PriceCouponClaimRecordMapper 和 PriceCouponConfigMapper，添加管理端所需的查询接口

src/main/java/com/ycwl/basic/pricing/handler/BundleProductListTypeHandler.java

@@ -0,0 +1,72 @@
+package com.ycwl.basic.pricing.handler;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.ycwl.basic.pricing.dto.BundleProductItem;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.ibatis.type.BaseTypeHandler;
+import org.apache.ibatis.type.JdbcType;
+
+import java.sql.CallableStatement;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 一口价商品列表类型处理器
+ */
+@Slf4j
+public class BundleProductListTypeHandler extends BaseTypeHandler<List<BundleProductItem>> {
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+    private final TypeReference<List<BundleProductItem>> typeReference = new TypeReference<List<BundleProductItem>>() {};
+
+    @Override
+    public void setNonNullParameter(PreparedStatement ps, int i, List<BundleProductItem> parameter, JdbcType jdbcType) throws SQLException {
+        try {
+            String json = objectMapper.writeValueAsString(parameter);
+            ps.setString(i, json);
+            log.debug("序列化商品列表: {}", json);
+        } catch (JsonProcessingException e) {
+            log.error("序列化商品列表失败", e);
+            throw new SQLException("序列化商品列表失败", e);
+        }
+    }
+
+    @Override
+    public List<BundleProductItem> getNullableResult(ResultSet rs, String columnName) throws SQLException {
+        String json = rs.getString(columnName);
+        return parseJson(json, columnName);
+    }
+
+    @Override
+    public List<BundleProductItem> getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
+        String json = rs.getString(columnIndex);
+        return parseJson(json, "columnIndex:" + columnIndex);
+    }
+
+    @Override
+    public List<BundleProductItem> getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
+        String json = cs.getString(columnIndex);
+        return parseJson(json, "columnIndex:" + columnIndex);
+    }
+
+    private List<BundleProductItem> parseJson(String json, String source) {
+        if (json == null || json.trim().isEmpty()) {
+            log.debug("从{}获取的JSON为空，返回空列表", source);
+            return new ArrayList<>();
+        }
+
+        try {
+            List<BundleProductItem> result = objectMapper.readValue(json, typeReference);
+            log.debug("从{}反序列化商品列表成功，数量: {}", source, result != null ? result.size() : 0);
+            return result != null ? result : new ArrayList<>();
+        } catch (JsonProcessingException e) {
+            log.error("从{}反序列化商品列表失败，JSON: {}", source, json, e);
+            return new ArrayList<>();
+        }
+    }
+}