update email template

app/Integrations/Whmcs/Support/OrderItemIdResolver.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Integrations\Whmcs\Support;
+
+use Illuminate\Support\Facades\DB;
+
+/** Resolves a WHMCS `tblhosting.id` to the local `order_items.id` via `legacy_id` (1:1, same source row). */
+class OrderItemIdResolver
+{
+    /** @var array<int, int>|null */
+    private static ?array $map = null;
+
+    public function resolve(int $legacyHostingId): ?int
+    {
+        self::$map ??= DB::table('order_items')->whereNotNull('legacy_id')->pluck('id', 'legacy_id')->all();
+
+        return self::$map[$legacyHostingId] ?? null;
+    }
+}