feat(billing): renewals, coupons, VAT numbering, billing cycles and invoice payment tracking

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

app/Services/InvoiceReminderService.php

@@ -7,6 +7,7 @@ use App\Models\Invoice;
 use App\Services\Email\EmailTemplateService;
 use App\Support\AutoEmailGate;
 use App\Support\EmailTemplateShell;
+use App\Support\InvoiceLookup;
 use Carbon\Carbon;
 
 /**
@@ -116,6 +117,8 @@ class InvoiceReminderService
             'paid_row'       => (int) ($invoice->amount_paid ?? 0) > 0
                 ? EmailTemplateShell::row('Đã thanh toán', number_format((int) $invoice->amount_paid, 0, ',', '.') . ' VNĐ')
                 : '',
+            'lookup_row'     => InvoiceLookup::emailRow($invoice),
+            'lookup_note'    => InvoiceLookup::emailNote($invoice),
             'login_url'      => rtrim((string) config('app.frontend_url', ''), '/') . '/dang-nhap',
             'support_email'  => 'support@tgs.com.vn',
             'support_phone'  => '(028) 7309. 7379',