feat(wms/receive/plan): 添加入库计划差异对比配置与重量差异校验

1. 新增差异对比阈值配置面板，支持设置重量差异阈值
2. 调整材质字段映射关系，修复字段匹配错误
3. 新增数值字段差异校验逻辑，支持基于阈值对比重量差异
4. 增加重新计算差异的按钮和配置说明文案

klp-ui/src/views/wms/receive/plan/index.vue

@@ -164,6 +164,17 @@
           </el-table>
         </el-tab-pane>
         <el-tab-pane label="差异对比" name="diff">
+          <div class="diff-config">
+            <el-form :model="diffConfig" inline>
+              <el-form-item label="重量差异阈值(kg)">
+                <el-input-number v-model="diffConfig.weightThreshold" :precision="2" :step="0.1" :min="0" style="width: 120px;" />
+              </el-form-item>
+              <el-form-item>
+                <el-button type="primary" size="mini" @click="calculateDiff">重新计算差异</el-button>
+              </el-form-item>
+            </el-form>
+            <span class="config-tip">重量差异在此阈值内视为相同，超出则标记为不一致</span>
+          </div>
           <el-row :gutter="16" class="diff-row">
             <el-col :span="12">
               <div class="diff-section">
@@ -461,6 +472,9 @@ export default {
       missingCoils: [],
       extraCoils: [],
       diffCoils: [],
+      diffConfig: {
+        weightThreshold: 0.5
+      },
 
       importOpen: false,
       file: null,
@@ -666,8 +680,8 @@ export default {
         const compareFields = [
           { planField: 'goodsName', actualField: 'itemName', fieldName: '名称' },
           { planField: 'spec', actualField: 'specification', fieldName: '规格' },
-          { planField: 'materialType', actualField: 'materialType', fieldName: '材质' },
-          { planField: 'weight', actualField: 'netWeight', fieldName: '重量' },
+          { planField: 'materialType', actualField: 'material', fieldName: '材质' },
+          { planField: 'weight', actualField: 'netWeight', fieldName: '重量', isNumber: true },
           { planField: 'manufacturer', actualField: 'manufacturer', fieldName: '生产厂家' },
           { planField: 'zincCoating', actualField: 'zincLayer', fieldName: '锌层' }
         ];
@@ -678,9 +692,19 @@ export default {
           if (actualItem) {
             const diffs = [];
             compareFields.forEach(field => {
-              const planValue = String(planItem[field.planField] || '');
-              const actualValue = String(actualItem[field.actualField] || '');
-              if (planValue !== actualValue) {
+              let planValue = String(planItem[field.planField] || '');
+              let actualValue = String(actualItem[field.actualField] || '');
+              if (field.isNumber) {
+                planValue = Number(planValue);
+                actualValue = Number(actualValue);
+              }
+              let isDiff = false;
+              if (field.isNumber) {
+                isDiff = Math.abs(planValue - actualValue) > this.diffConfig.weightThreshold;
+              } else {
+                isDiff = planValue !== actualValue;
+              }
+              if (isDiff) {
                 diffs.push({
                   fieldName: field.fieldName,
                   planValue,
@@ -1123,6 +1147,22 @@ export default {
   margin-bottom: 20px;
 }
 
+.diff-config {
+  background: #fff;
+  border-radius: 8px;
+  padding: 12px 16px;
+  margin-bottom: 16px;
+  border: 1px solid #e4e7ed;
+  display: flex;
+  align-items: center;
+  gap: 16px;
+}
+
+.config-tip {
+  font-size: 12px;
+  color: #909399;
+}
+
 .diff-section {
   background: #fafafa;
   border-radius: 8px;