feat: add basic blog features

entities/post/Post.model.js

@@ -0,0 +1,16 @@
+export default class Post {
+  id;
+  title;
+  content;
+  created_at;
+  updated_at;
+  
+  constructor(data) {
+    this.title = data.title;
+    this.content = data.content;
+
+    this.id = data.id || undefined;
+    this.created_at = data.created_at || undefined;
+    this.updated_at = data.updated_at || undefined;
+  }
+}