fix: 修复数据流转mqtt clientId去掉随机生成，并且限制长度255

@@ -599,7 +599,7 @@ export const modeMqttForm: FormSchema[] = [
             });
           }
         },
-        maxLength: 8,
+        maxLength: 255,
         placeholder: '请输入Client ID',
       };
     },

@@ -104,7 +104,6 @@
   import { Alert, Divider, Descriptions, Upload } from 'ant-design-vue';
   import { uploadApi } from '/@/api/personal/index';
   import { useMessage } from '/@/hooks/web/useMessage';
-  import { buildUUID } from '/@/utils/uuid';
 
   export default defineComponent({
     components: {
@@ -234,9 +233,7 @@
           }
         }
       };
-      const isEdit = ref(false);
       const setStepTwoFieldsValueFunc = (v, v1, v2) => {
-        isEdit.value = true;
         setFieldsValue(v);
         setFieldsValue({
           name: v1,
@@ -346,14 +343,8 @@
           credentialsV.credentials.certFileName = certFileName.value;
           credentialsV.credentials.privateKeyFileName = privateKeyFileName.value;
         }
-        if (sonValues.configuration.clientId?.length > 0) {
-          //则是自己输入
-        } else if (!sonValues.configuration.clientId) {
-          //clientId 从uuid里切片8位
-        } else {
-        }
-        if (!isEdit.value && !sonValues.configuration.clientId) {
-          sonValues.configuration.clientId = buildUUID().slice(0, 8);
+        if (!sonValues.configuration.clientId) {
+          sonValues.configuration.clientId = null;
         }
         Object.assign(sonValues.configuration, credentialsV);
         return sonValues;