feat: implement public booking cancellation feature

- Added cancelPublicBooking handler to manage booking cancellations.
- Updated public booking service to include cancellation logic.
- Created cancelPublicBooking schema for input validation.
- Modified public booking confirmation page to allow users to cancel their bookings.
- Enhanced email service to send cancellation confirmation emails.
- Made customerEmail field required in booking schemas and updated related components.
- Updated API client to support cancellation requests.
- Added migration to enforce non-nullable customer_email fields in the database.

packages/api-contract/src/admin-booking.ts

@@ -25,7 +25,7 @@ export const adminBookingSchema = z.object({
   endTime: z.string().regex(TIME_REGEX),
   customerName: z.string(),
   customerPhone: z.string(),
-  customerEmail: z.string().optional(),
+  customerEmail: z.string(),
   price: z.number().nonnegative(),
   status: bookingStatusSchema,
   createdAt: z.string().datetime(),
@@ -56,9 +56,7 @@ export const createAdminBookingSchema = z.object({
     .max(30, 'El telefono no puede superar los 30 caracteres.'),
   customerEmail: z
     .string()
-    .email('El email ingresado no es valido.')
-    .optional()
-    .or(z.literal('')),
+    .email('El email ingresado no es valido.'),
 })
 
 export const updateAdminBookingStatusSchema = z.object({