added missing model

dbms/src/main/java/org/polypheny/db/backup/webui/models/StatusModel.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2019-2023 The Polypheny Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.polypheny.db.backup.webui.models;
+
+import lombok.AllArgsConstructor;
+import lombok.Value;
+
+@Value
+@AllArgsConstructor
+public class StatusModel {
+
+    public Code code;
+
+    public String message;
+
+
+    public enum Code {
+        SUCCESS,
+        RUNNING,
+        ERROR;
+    }
+
+}