feat: add rating and comement

app/Traits/HasRatings.php

@@ -0,0 +1,32 @@
+<?php
+// app/Traits/HasRatings.php
+namespace App\Traits;
+
+use App\Models\Rating;
+
+trait HasRatings
+{
+    public function ratings()
+    {
+        return $this->morphMany(Rating::class, 'rateable');
+    }
+
+    public function getAverageRatingAttribute()
+    {
+        return round($this->ratings()->avg('stars'), 1);
+    }
+
+    public function getUserRatingAttribute()
+    {
+        if (!auth()->check()) return null;
+        
+        return $this->ratings()
+            ->where('user_id', auth()->id())
+            ->value('stars');
+    }
+
+    public function getRatingsCountAttribute()
+    {
+        return $this->ratings()->count();
+    }
+}