feat(组件): 增强物料选择组件功能并优化样式

- 为ProductSelect、MaterialSelect和RawMaterialSelect组件添加多选支持
- 优化el-select组件样式，调整高度和标签显示宽度
- 在QRCode组件中添加内容变化监听自动生成二维码
- 在标签预览组件中添加qrcodeRecordId字段
- 在基础面板中添加物料多选查询和状态筛选功能

klp-ui/src/components/KLPService/ProductSelect/index.vue

@@ -1,7 +1,7 @@
 <template>
   <span>
-    <el-select v-model="selected" :placeholder="placeholder" :disabled="disabled" filterable clearable
-      @change="onChange" :value-key="'productId'">
+    <el-select v-model="selected" :placeholder="placeholder" :disabled="disabled" filterable clearable size="mini"
+      @change="onChange" :value-key="'productId'" :multiple="multiple" collapse-tags>
       <template #empty>
         <el-button v-if="canAdd" @click="add" icon="el-icon-plus">未搜索到产品，点击添加</el-button>
         <div v-else style="padding: 10px;">未搜索到产品</div>
@@ -66,7 +66,7 @@ import BomPanel from '../BomPanel/index.vue';
 export default {
   name: 'ProductSelect',
   props: {
-    value: [String, null],
+    value: [String, null, Array],
     disabled: Boolean,
     placeholder: {
       type: String,
@@ -76,6 +76,10 @@ export default {
       default: false,
       type: Boolean
     },
+    multiple: {
+      default: false,
+      type: Boolean
+    }
   },
   components: {
     BomPanel
@@ -111,10 +115,24 @@ export default {
   },
   watch: {
     value(val) {
-      this.selected = val;
+      console.log(val, 'value');
+      if (!val) {
+        this.selected = [];
+        return;
+      }
+      if (this.multiple) {
+        this.selected = val.split(',') || undefined;
+      } else {
+        this.selected = val || undefined;
+      }
     },
     selected(val) {
-      this.$emit('input', val);
+      console.log(val, 'selected');
+      if (this.multiple) {
+        this.$emit('input', val.join(','));
+      } else {
+        this.$emit('input', val);
+      }
     }
   },
   created() {