refactor

core/shared/domain/Entity.ts

@@ -1,3 +1,11 @@
 export interface IEntity<Id = string> {
   readonly id: Id;
+}
+
+export abstract class Entity<Id> implements IEntity<Id> {
+  protected constructor(readonly id: Id) {}
+
+  equals(other?: Entity<Id>): boolean {
+    return !!other && this.id === other.id;
+  }
 }