feat: add app and database modules

app/Observers/RoleObserver.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Role;
+use Illuminate\Support\Facades\Auth;
+
+class RoleObserver
+{
+    /**
+     * Ketika role dibuat
+     */
+    public function creating(Role $role)
+    {
+        if (Auth::check()) {
+            $role->created_by = Auth::id();
+        }
+    }
+
+    /**
+     * Ketika role diupdate
+     */
+    public function updating(Role $role)
+    {
+        if (Auth::check()) {
+            $role->updated_by = Auth::id();
+        }
+    }
+
+    /**
+     * Handle the Role "deleting" event.
+     */
+    public function deleting(Role $role)
+    {
+        if (Auth::check()) {
+            $role->updated_by = Auth::id();
+            $role->saveQuietly(); // Hindari loop & double log
+        }
+    }
+
+    /**
+     * Saat status role di-toggle
+     */
+    public function toggleStatus(Role $role)
+    {
+        if (Auth::check()) {
+            $role->updated_by = Auth::id();
+        }
+    }
+}