feat: Enhance product support in Cart and OrderItem models

- Added new fields 'billing_cycle' and 'product_pricing_id' to Cart and OrderItem models.
- Updated product retrieval logic to support both new and legacy systems.
- Introduced relationships for Product and ProductPricings in Cart and OrderItem models.
- Created migration to add new fields to the carts and order_item tables.
- Updated frontend service index to handle new pricing structure and billing cycles.
- Improved UI components for better user experience in product selection and pricing display.
- Refactored action buttons in various views for consistency and improved styling.

app/Models/OrderItem.php

@@ -25,6 +25,15 @@ class OrderItem extends Model
 
     public function getProductAttribute()
     {
+        // New flow: Check if product exists in Product table first
+        if ($this->product_id) {
+            $product = Product::find($this->product_id);
+            if ($product) {
+                return $product;
+            }
+        }
+
+        // Legacy flow: fallback to old system
         return match ($this->product_type) {
             3 => Hosting::find($this->product_id),
             4 => Vps::find($this->product_id),
@@ -32,6 +41,22 @@ class OrderItem extends Model
         };
     }
 
+    /**
+     * Relationship: OrderItem belongs to Product (new system)
+     */
+    public function product()
+    {
+        return $this->belongsTo(Product::class, 'product_id');
+    }
+
+    /**
+     * Relationship: OrderItem has pricing info
+     */
+    public function pricing()
+    {
+        return $this->belongsTo(ProductPricings::class, 'product_pricing_id');
+    }
+
 
 
     public function os()