Feat : add messages

dto/messageresponse.dto.ts

@@ -0,0 +1,11 @@
+export class MessageResponseDTO {
+  constructor(partial: Partial<MessageResponseDTO>) {
+    this.id = partial.id;
+    this.value = partial.value;
+    this.authorId = partial.authorId;
+  }
+
+  id: number;
+  value: string;
+  authorId: number;
+}