feat(wms): 新增第三个报表统计——冷硬卷统计

- 在IWmsMaterialCoilService中添加getCoilTrimStatistics方法
- 在WmsMaterialCoilController中新增trimStatistics接口
- 在WmsMaterialCoilMapper中添加selectCoilTrimStatistics查询方法
- 在WmsMaterialCoilMapper.xml中实现切边统计数据SQL查询
- 在WmsMaterialCoilServiceImpl中实现切边统计业务逻辑
- 新增CoilTrimRawVo、CoilTrimStatisticsVo和TrimWidthStatisticsVo数据传输对象
- 按厚度、宽度、切边要求（净边/毛边）统计钢卷数量和重量
- 实现数据分组和排序功能，支持前端展示需求

klp-wms/src/main/java/com/klp/domain/vo/dashboard/CoilTrimRawVo.java

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+package com.klp.domain.vo.dashboard;
+
+import lombok.Data;
+import java.math.BigDecimal;
+
+@Data
+public class CoilTrimRawVo {
+    private String thickness;
+    private String width;
+    private String trimmingRequirement;
+    private Integer coilCount;
+    private BigDecimal totalWeight;
+}

klp-wms/src/main/java/com/klp/domain/vo/dashboard/CoilTrimStatisticsVo.java

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+package com.klp.domain.vo.dashboard;
+
+import lombok.Data;
+import java.math.BigDecimal;
+import java.util.List;
+
+@Data
+public class CoilTrimStatisticsVo {
+    private String thickness;
+    private List<TrimWidthStatisticsVo> trimmedList;
+    private List<TrimWidthStatisticsVo> untrimmedList;
+}

klp-wms/src/main/java/com/klp/domain/vo/dashboard/TrimWidthStatisticsVo.java

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+package com.klp.domain.vo.dashboard;
+
+import lombok.Data;
+import java.math.BigDecimal;
+
+@Data
+public class TrimWidthStatisticsVo {
+    private String width;
+    private Integer coilCount;
+    private BigDecimal totalWeight;
+}