feat: 为多个页面添加操作帮助功能，替换旧版静态资源文件

1. 新增PageHelp通用帮助组件，实现页面左下角悬浮帮助按钮
2. 为WMS、MES、工位终端多个业务页面接入帮助系统
3. 替换项目中旧的打包静态资源文件，更新资源引用路径
4. 新增各模块的帮助文档配置数据

bj_power_mes/frontend/src/pages/Scan.vue

@@ -32,12 +32,15 @@
       <el-table-column prop="time" label="时间" min-width="170" />
     </el-table>
   </el-card>
+  <PageHelp :data="helpScan" />
 </template>
 
 <script setup>
 import { reactive, ref, onMounted } from 'vue'
 import { ElMessage } from 'element-plus'
 import request from '../utils/request'
+import PageHelp from '../components/PageHelp.vue'
+import { helpScan } from '../help'
 
 const scan = reactive({ sn: '', orderNo: '', station: '', type: 'PROCESS', processCode: 0 })
 const query = reactive({ sn: '', orderNo: '' })