feat(portal): lead module, WHMCS sync report/contacts/mapping, service lifecycle email templates

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

app/Support/PhoneNumber.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Support;
+
+class PhoneNumber
+{
+    public static function normalize(?string $raw): ?string
+    {
+        if (! $raw) {
+            return null;
+        }
+
+        $digits = preg_replace('/\D+/', '', $raw);
+
+        if (str_starts_with($digits, '84')) {
+            $digits = '0' . substr($digits, 2);
+        }
+
+        return $digits ?: null;
+    }
+}