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/Rbac.vue

@@ -110,12 +110,15 @@
       <template #footer><el-button @click="p.show=false">取消</el-button><el-button type="primary" @click="savePerm">保存</el-button></template>
     </el-dialog>
   </el-card>
+  <PageHelp :data="helpRbac" />
 </template>
 
 <script setup>
 import { ref, reactive, onMounted } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
 import request from '../utils/request'
+import PageHelp from '../components/PageHelp.vue'
+import { helpRbac } from '../help'
 
 const tab = ref('users')
 const users = ref([]), roles = ref([]), perms = ref([])