优化入库单角标：使用 Element UI 的 el-badge 组件

src/views/WarehouseManagement/PurchasePartsStorage/index.vue

@@ -44,15 +44,16 @@
               size="small"
               @click="submitInStorage">入库
             </el-button>
+          <el-badge :value="tableDataRKD ? tableDataRKD.length : 0" class="item">
             <el-button
               type="primary"
               icon="el-icon-s-home"
-              style="margin-left: 10px; position: relative;"
+              style="margin-left: 10px"
               plain
               size="small"
               @click="showRKDDialog">入库单
-              <span v-if="tableDataRKD && tableDataRKD.length > 0" style="position: absolute; top: -8px; right: -8px; background-color: #F56C77; color: white; border-radius: 50%; padding: 2px 6px; font-size: 12px; line-height: 1; min-width: 20px; text-align: center;">{{ tableDataRKD.length }}</span>
             </el-button>
+          </el-badge>
             <el-button
               type="primary"
               icon="el-icon-printer"