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

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

app/Mail/ServiceRenewedMail.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Queue\SerializesModels;
+
+class ServiceRenewedMail extends TemplateMailable
+{
+    use Queueable, SerializesModels;
+
+    public function __construct(
+        private readonly string $scenarioKey,
+        private readonly array $data,
+    ) {}
+
+    protected function scenario(): string
+    {
+        return $this->scenarioKey;
+    }
+
+    protected function variables(): array
+    {
+        return $this->data;
+    }
+}