feat: Add IT Support catalog and related migrations, seeders, and email templates

- Created migration to add 'group_label' to 'product_type_fields' table.
- Implemented ItSupportCatalogSeeder to populate IT Support features and tiers.
- Added ProductCategorySeeder for initial product categories.
- Developed ProductMockupSeeder for mockup products in various categories.
- Introduced ProductTypeFieldSeeder to define fields for different product types.
- Created email templates for VPS service information and service renewal reminders.

app/Models/Product.php

@@ -29,6 +29,7 @@ class Product extends Model
         'gpu',
         'disk',
         'bandwidth',
+        'domain_count',
         'stock',
         'is_unlimited',
         'is_active',
@@ -39,6 +40,7 @@ class Product extends Model
         'module_host_id',
         'module_datastore_id',
         'published_at',
+        'features',
     ];
 
     protected $casts = [
@@ -47,6 +49,7 @@ class Product extends Model
         'published_at' => 'date',
         'gallery' => 'array',
         'product_type' => 'string',
+        'features' => 'array',
     ];
 
     protected static function boot()