feat: add advanced features — KB, tickets v2, multi-currency, cart, quotes, affiliates, credits, staff RBAC, fraud detection, service panels

Major additions:
- Knowledge base with categories, articles, revisions, and voting
- Enhanced ticket system: departments, SLA policies, canned responses, tags, custom fields, satisfaction ratings, internal notes
- Multi-currency support with exchange rate sync
- Shopping cart and quote system with PDF generation
- Affiliate program with referrals, commissions, and payouts
- Account credits, credit notes, and debit notes
- Staff management with granular role-based permissions
- Fraud detection and order risk assessment
- ServerHunter SEO integration
- Service lifecycle events (suspend/unsuspend/terminate)
- Service management panels for VPS, Dedicated, Hosting, and Game servers
- Plan lifecycle fields and per-customer overrides
- 30+ migrations, 17 factories, 8 feature test suites

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

website/database/seeders/ConfigOptionSeeder.php

@@ -109,7 +109,7 @@ class ConfigOptionSeeder extends Seeder
         );
 
         // IPv4 Addresses (quantity)
-        $ipv4Option = $this->seedQuantityOption($vpsAddons, 'IPv4 Addresses', 1, 8, 'addresses', 3.00, 1);
+        $ipv4Option = $this->seedQuantityOption($vpsAddons, 'IPv4 Addresses', 1, 8, 'addresses', 8.00, 1);
 
         // Windows License (checkbox)
         $winOption = $this->seedCheckboxOption($vpsAddons, 'Windows License', 2);