Implement WHMCS Addon Dashboard with API for stats and integrate billing provider logic

apps/api/src/integrations/whmcs/whmcs-integration.service.ts

@@ -17,6 +17,7 @@ import { formatJoinAddress } from '@hexahost/dns';
 import type { GameServer } from '@hexahost/database';
 
 import { BillingService } from '../../billing/billing.service';
+import { getBillingProvider } from '../../billing/billing-provider';
 import { PrismaService } from '../../prisma/prisma.service';
 import { ServersService } from '../../servers/servers.service';
 
@@ -39,7 +40,7 @@ export class WhmcsIntegrationService {
     return {
       status: 'ok' as const,
       integrationId: installation.integrationId,
-      billingProvider: process.env['BILLING_PROVIDER'] ?? 'internal',
+      billingProvider: getBillingProvider(),
     };
   }