feat: configure Payload SMTP email adapter

payload.config.ts

@@ -30,6 +30,7 @@ import { BookingSettings } from "@/globals/BookingSettings";
 import { SEOSettings } from "@/globals/SEOSettings";
 import { CookieSettings } from "@/globals/CookieSettings";
 import { AnalyticsSettings } from "@/globals/AnalyticsSettings";
+import { payloadEmailAdapter } from "@/lib/email/payloadAdapter";
 
 const filename = fileURLToPath(import.meta.url);
 const dirname = path.dirname(filename);
@@ -94,6 +95,7 @@ export default buildConfig({
     AnalyticsSettings,
   ],
   editor: lexicalEditor(),
+  email: payloadEmailAdapter,
   graphQL: {
     disablePlaygroundInProduction: true,
     disableIntrospectionInProduction: true,