Use admin timezone for emails and ticket PDFs

- Email: formatDate/formatTime use site timezone from settings
- PDF tickets: date/time formatted in site timezone
- Tickets routes: fetch timezone and pass to PDF generation

backend/src/lib/email.ts

@@ -1,7 +1,7 @@
 // Email service for Spanglish platform
 // Supports multiple email providers: Resend, SMTP (Nodemailer)
 
-import { db, dbGet, dbAll, emailTemplates, emailLogs, events, tickets, payments, users, paymentOptions, eventPaymentOverrides } from '../db/index.js';
+import { db, dbGet, dbAll, emailTemplates, emailLogs, events, tickets, payments, users, paymentOptions, eventPaymentOverrides, siteSettings } from '../db/index.js';
 import { eq, and } from 'drizzle-orm';
 import { getNow, generateId } from './utils.js';
 import { 
@@ -324,26 +324,38 @@ export const emailService = {
   },
   
   /**
-   * Format date for emails
+   * Get the site timezone from settings (cached for performance)
    */
-  formatDate(dateStr: string, locale: string = 'en'): string {
+  async getSiteTimezone(): Promise<string> {
+    const settings = await dbGet<any>(
+      (db as any).select().from(siteSettings).limit(1)
+    );
+    return settings?.timezone || 'America/Asuncion';
+  },
+  
+  /**
+   * Format date for emails using site timezone
+   */
+  formatDate(dateStr: string, locale: string = 'en', timezone: string = 'America/Asuncion'): string {
     const date = new Date(dateStr);
     return date.toLocaleDateString(locale === 'es' ? 'es-ES' : 'en-US', {
       weekday: 'long',
       year: 'numeric',
       month: 'long',
       day: 'numeric',
+      timeZone: timezone,
     });
   },
   
   /**
-   * Format time for emails
+   * Format time for emails using site timezone
    */
-  formatTime(dateStr: string, locale: string = 'en'): string {
+  formatTime(dateStr: string, locale: string = 'en', timezone: string = 'America/Asuncion'): string {
     const date = new Date(dateStr);
     return date.toLocaleTimeString(locale === 'es' ? 'es-ES' : 'en-US', {
       hour: '2-digit',
       minute: '2-digit',
+      timeZone: timezone,
     });
   },
   
@@ -579,6 +591,9 @@ export const emailService = {
     // Calculate total price for multi-ticket bookings
     const totalPrice = event.price * ticketCount;
     
+    // Get site timezone for proper date/time formatting
+    const timezone = await this.getSiteTimezone();
+    
     return this.sendTemplateEmail({
       templateSlug: 'booking-confirmation',
       to: ticket.attendeeEmail,
@@ -593,8 +608,8 @@ export const emailService = {
         qrCode: ticket.qrCode || '',
         ticketPdfUrl,
         eventTitle,
-        eventDate: this.formatDate(event.startDatetime, locale),
-        eventTime: this.formatTime(event.startDatetime, locale),
+        eventDate: this.formatDate(event.startDatetime, locale, timezone),
+        eventTime: this.formatTime(event.startDatetime, locale, timezone),
         eventLocation: event.location,
         eventLocationUrl: event.locationUrl || '',
         eventPrice: this.formatCurrency(event.price, event.currency),
@@ -687,6 +702,9 @@ export const emailService = {
       ? `${this.formatCurrency(totalAmount, payment.currency)} (${ticketCount} tickets)`
       : this.formatCurrency(totalAmount, payment.currency);
     
+    // Get site timezone for proper date/time formatting
+    const timezone = await this.getSiteTimezone();
+    
     return this.sendTemplateEmail({
       templateSlug: 'payment-receipt',
       to: ticket.attendeeEmail,
@@ -697,11 +715,11 @@ export const emailService = {
         attendeeName: receiptFullName,
         ticketId: ticket.bookingId || ticket.id,
         eventTitle,
-        eventDate: this.formatDate(event.startDatetime, locale),
+        eventDate: this.formatDate(event.startDatetime, locale, timezone),
         paymentAmount: amountDisplay,
         paymentMethod: paymentMethodNames[locale]?.[payment.provider] || payment.provider,
         paymentReference: payment.reference || payment.id,
-        paymentDate: this.formatDate(payment.paidAt || payment.createdAt, locale),
+        paymentDate: this.formatDate(payment.paidAt || payment.createdAt, locale, timezone),
       },
     });
   },
@@ -846,14 +864,17 @@ export const emailService = {
       ? `${this.formatCurrency(totalPrice, event.currency)} (${ticketCount} tickets)`
       : this.formatCurrency(totalPrice, event.currency);
 
+    // Get site timezone for proper date/time formatting
+    const timezone = await this.getSiteTimezone();
+
     // Build variables based on payment method
     const variables: Record<string, any> = {
       attendeeName: attendeeFullName,
       attendeeEmail: ticket.attendeeEmail,
       ticketId: ticket.bookingId || ticket.id,
       eventTitle,
-      eventDate: this.formatDate(event.startDatetime, locale),
-      eventTime: this.formatTime(event.startDatetime, locale),
+      eventDate: this.formatDate(event.startDatetime, locale, timezone),
+      eventTime: this.formatTime(event.startDatetime, locale, timezone),
       eventLocation: event.location,
       eventLocationUrl: event.locationUrl || '',
       paymentAmount: amountDisplay,
@@ -934,6 +955,9 @@ export const emailService = {
     const frontendUrl = process.env.FRONTEND_URL || 'https://spanglish.com';
     const newBookingUrl = `${frontendUrl}/book/${event.id}`;
 
+    // Get site timezone for proper date/time formatting
+    const timezone = await this.getSiteTimezone();
+
     console.log(`[Email] Sending payment rejection email to ${ticket.attendeeEmail}`);
 
     return this.sendTemplateEmail({
@@ -947,8 +971,8 @@ export const emailService = {
         attendeeEmail: ticket.attendeeEmail,
         ticketId: ticket.id,
         eventTitle,
-        eventDate: this.formatDate(event.startDatetime, locale),
-        eventTime: this.formatTime(event.startDatetime, locale),
+        eventDate: this.formatDate(event.startDatetime, locale, timezone),
+        eventTime: this.formatTime(event.startDatetime, locale, timezone),
         eventLocation: event.location,
         eventLocationUrl: event.locationUrl || '',
         newBookingUrl,
@@ -1001,6 +1025,9 @@ export const emailService = {
       return { success: true, sentCount: 0, failedCount: 0, errors: ['No recipients found'] };
     }
     
+    // Get site timezone for proper date/time formatting
+    const timezone = await this.getSiteTimezone();
+    
     let sentCount = 0;
     let failedCount = 0;
     const errors: string[] = [];
@@ -1023,8 +1050,8 @@ export const emailService = {
           attendeeEmail: ticket.attendeeEmail,
           ticketId: ticket.id,
           eventTitle,
-          eventDate: this.formatDate(event.startDatetime, locale),
-          eventTime: this.formatTime(event.startDatetime, locale),
+          eventDate: this.formatDate(event.startDatetime, locale, timezone),
+          eventTime: this.formatTime(event.startDatetime, locale, timezone),
           eventLocation: event.location,
           eventLocationUrl: event.locationUrl || '',
           ...customVariables,