feat(wms): 优化钢卷库区操作记录吞吐报表统计功能

- 后端新增 statistics 接口聚合图表数据，避免前端遍历计算
- 新增 WmsCoilWarehouseOperationLogStatisticsVo 数据传输对象
- 实现按操作人汇总、按日趋势、汇总指标三个维度的数据查询
- 前端 record 页面集成统计卡片、趋势图、饼图、柱状图展示
- 优化分页逻辑，移除前端全量数据存储和分页计算
- 添加完整的 SQL 统计查询语句支持多维度数据聚合

klp-wms/src/main/resources/mapper/klp/WmsCoilWarehouseOperationLogMapper.xml

@@ -129,4 +129,66 @@
         ORDER BY log.create_time DESC
     </select>
 
+    <!-- ==================== 吞吐报表统计 SQL ==================== -->
+
+    <!-- 公共过滤条件片段 -->
+    <sql id="statisticsWhere">
+        <where>
+            log.del_flag = 0
+            <if test="actualWarehouseId != null">
+                AND log.actual_warehouse_id = #{actualWarehouseId}
+            </if>
+            <if test="operationType != null">
+                AND log.operation_type = #{operationType}
+            </if>
+            <if test="inOutType != null">
+                AND log.in_out_type = #{inOutType}
+            </if>
+            <if test="createBy != null and createBy != ''">
+                AND log.create_by = #{createBy}
+            </if>
+            <if test="startTime != null">
+                AND log.create_time &gt;= #{startTime}
+            </if>
+            <if test="endTime != null">
+                AND log.create_time &lt;= #{endTime}
+            </if>
+        </where>
+    </sql>
+
+    <!-- 汇总指标：总数、总重量、涉及库位数 -->
+    <select id="selectStatisticsSummary" resultType="com.klp.domain.vo.WmsCoilWarehouseOperationLogStatisticsVo">
+        SELECT
+            COUNT(*) AS totalCount,
+            COALESCE(SUM(mc.net_weight), 0) AS totalWeight,
+            COUNT(DISTINCT log.actual_warehouse_id) AS warehouseCount
+        FROM wms_coil_warehouse_operation_log log
+        LEFT JOIN wms_material_coil mc ON log.coil_id = mc.coil_id AND mc.del_flag = 0
+        <include refid="statisticsWhere"/>
+    </select>
+
+    <!-- 按操作人汇总 -->
+    <select id="selectUserSummary" resultType="com.klp.domain.vo.WmsCoilWarehouseOperationLogStatisticsVo$UserSummary">
+        SELECT
+            log.create_by AS createBy,
+            COUNT(*) AS coilCount,
+            COALESCE(SUM(mc.net_weight), 0) AS totalWeight
+        FROM wms_coil_warehouse_operation_log log
+        LEFT JOIN wms_material_coil mc ON log.coil_id = mc.coil_id AND mc.del_flag = 0
+        <include refid="statisticsWhere"/>
+        GROUP BY log.create_by
+        ORDER BY coilCount DESC
+    </select>
+
+    <!-- 按日趋势 -->
+    <select id="selectTrendData" resultType="com.klp.domain.vo.WmsCoilWarehouseOperationLogStatisticsVo$TrendItem">
+        SELECT
+            DATE_FORMAT(log.create_time, '%Y-%m-%d') AS date,
+            COUNT(*) AS count
+        FROM wms_coil_warehouse_operation_log log
+        <include refid="statisticsWhere"/>
+        GROUP BY DATE_FORMAT(log.create_time, '%Y-%m-%d')
+        ORDER BY date ASC
+    </select>
+
 </mapper>