Initial commit: ANOUMA website with Payload CMS, WebRTC meetings, and booking system

- Next.js 16 App Router site with the ANOUMA design system
- Payload CMS (PostgreSQL) for offers, events, posts and page content
- WebRTC video-call system with custom signaling server
- SMTP email reminders and booking-request notifications
- Customer accounts, calendar-based availability, and booking workflow

lib/email/sendReminderEmail.ts

@@ -0,0 +1,13 @@
+import { getMailFrom, getMailTransport } from "./transport";
+import { renderReminderEmailHtml, renderReminderEmailText, type ReminderEmailData } from "./reminderTemplate";
+
+export async function sendReminderEmail(to: string, data: ReminderEmailData) {
+  const transport = getMailTransport();
+  await transport.sendMail({
+    from: getMailFrom(),
+    to,
+    subject: `Dein Online-Termin bei ANOUMA beginnt in ${data.minutesBefore} Minuten`,
+    html: renderReminderEmailHtml(data),
+    text: renderReminderEmailText(data),
+  });
+}