refactor(ui): 优化按钮事件处理及表格列显示

修复按钮事件冒泡问题，移除未使用的表格列和代码
清理库存管理页面冗余状态和表单校验逻辑

klp-ui/src/views/crm/preOrder/index.vue

@@ -96,19 +96,19 @@
             size="mini"
             type="text"
             icon="el-icon-check"
-            @click="handleApprove(scope.row)"
+            @click.stop="handleApprove(scope.row)"
           >审批</el-button>
           <el-button
             size="mini"
             type="text"
             icon="el-icon-edit"
-            @click="handleUpdate(scope.row)"
+            @click.stop="handleUpdate(scope.row)"
           >修改</el-button>
           <el-button
             size="mini"
             type="text"
             icon="el-icon-delete"
-            @click="handleDelete(scope.row)"
+            @click.stop="handleDelete(scope.row)"
           >删除</el-button>
         </template>
       </el-table-column>