feat(wms): 新增钢卷合同号自动填充功能

1. 在钢卷合并、分卷、打钢印、计划拆分、退火计划页面添加合同号自动拉取逻辑
2. 优化合同选择组件，补全不存在于列表的已选合同
3. 移除split.vue中冗余的注释代码

klp-ui/src/views/wms/coil/panels/stepSplit.vue

@@ -378,6 +378,7 @@
 
 <script>
 import { getMaterialCoil, listMaterialCoil, createSpecialChild, completeSpecialSplit, updateMaterialCoilSimple, delMaterialCoil, getFirstHeatCoilMaterial } from '@/api/wms/coil'
+import { listCoilContractRel } from '@/api/wms/coilContractRel'
 import { listCoilAbnormal } from '@/api/wms/coilAbnormal'
 import { getPendingAction, updatePendingAction } from '@/api/wms/pendingAction'
 import { saveCoilCache, getCoilCacheByCoilId, delCoilCache } from '@/api/wms/coilCache'
@@ -735,6 +736,13 @@ export default {
       if (this.isGrindAction && this.coilInfo.enterCoilNo) {
         this.splitForm.chromePlateCoilNo = this.coilInfo.enterCoilNo.split(',')[0].trim()
       }
+      // 获取原料卷绑定的合同号作为默认值
+      listCoilContractRel({ coilId: this.coilId }).then(res => {
+        const rows = res.rows || []
+        if (rows.length > 0 && rows[0].contractId) {
+          this.$set(this.splitForm, 'contractId', rows[0].contractId)
+        }
+      })
       // 查询是否有缓存
       try {
         const res = await getCoilCacheByCoilId(this.coilId)