feat: add customer email functionality for booking confirmations

- Implemented email confirmation for admin and public bookings.
- Added customerEmail field to booking schemas and services.
- Created email templates for booking confirmation, cancellation, and no-show notifications.
- Updated booking handlers to send emails upon booking creation and status updates.
- Enhanced frontend forms to capture customer email during booking creation.

apps/backend/src/services/booking-email.service.ts

@@ -0,0 +1,86 @@
+import {
+  bookingCancelledHtml,
+  bookingConfirmationHtml,
+  bookingNoShowHtml,
+} from '@/emails/booking-confirmation';
+import { sendMail } from '@/lib/mailer';
+
+type BookingEmailInput = {
+  bookingCode: string;
+  complexName: string;
+  date: string;
+  startTime: string;
+  endTime: string;
+  courtName: string;
+  sportName: string;
+  customerName: string;
+  customerEmail?: string;
+  price?: number;
+};
+
+export async function sendBookingConfirmation(data: BookingEmailInput) {
+  if (!data.customerEmail) return;
+
+  const html = bookingConfirmationHtml({
+    bookingCode: data.bookingCode,
+    complexName: data.complexName,
+    date: data.date,
+    startTime: data.startTime,
+    endTime: data.endTime,
+    courtName: data.courtName,
+    sportName: data.sportName,
+    customerName: data.customerName,
+    price: data.price,
+  });
+
+  await sendMail({
+    to: data.customerEmail,
+    subject: `Reserva confirmada en ${data.complexName} | Playzer`,
+    html,
+    text: `Reserva confirmada en ${data.complexName}. Codigo: ${data.bookingCode}. Cancha: ${data.courtName}. Fecha: ${data.date}. Horario: ${data.startTime} - ${data.endTime}.`,
+  });
+}
+
+export async function sendBookingCancelled(data: BookingEmailInput) {
+  if (!data.customerEmail) return;
+
+  const html = bookingCancelledHtml({
+    bookingCode: data.bookingCode,
+    complexName: data.complexName,
+    date: data.date,
+    startTime: data.startTime,
+    endTime: data.endTime,
+    courtName: data.courtName,
+    sportName: data.sportName,
+    customerName: data.customerName,
+  });
+
+  await sendMail({
+    to: data.customerEmail,
+    subject: `Reserva cancelada en ${data.complexName} | Playzer`,
+    html,
+    text: `Reserva cancelada en ${data.complexName}. Codigo: ${data.bookingCode}. Fecha: ${data.date}. Horario: ${data.startTime} - ${data.endTime}.`,
+  });
+}
+
+export async function sendBookingNoShow(data: BookingEmailInput) {
+  if (!data.customerEmail) return;
+
+  const html = bookingNoShowHtml({
+    bookingCode: data.bookingCode,
+    complexName: data.complexName,
+    date: data.date,
+    startTime: data.startTime,
+    endTime: data.endTime,
+    courtName: data.courtName,
+    sportName: data.sportName,
+    customerName: data.customerName,
+  });
+
+  await sendMail({
+    to: data.customerEmail,
+    subject: `Reserva no concretada en ${data.complexName} | Playzer`,
+    html,
+    text: `Reserva no concretada en ${data.complexName}. Codigo: ${data.bookingCode}. Fecha: ${data.date}. Horario: ${data.startTime} - ${data.endTime}.`,
+  });
+}