Implement AlbumObserver for Album and User interaction

This commit adds AlbumObserver to manage User and Album interaction in the application. Now, if any user is creating or updating an album, their user_id is automatically stored in the Album model, creating a way to track the relationship between the user and their albums.

app/Observers/AlbumObserver.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Album;
+
+class AlbumObserver
+{
+    public function creating(Album $album): void
+    {
+        if (auth()->check()){
+            $album->user_id = auth()->id();
+        }
+    }
+
+    public function updating(Album $album): void
+    {
+        if (auth()->check()){
+            $album->user_id = auth()->id();
+        }
+    }
+}