feat: PDF ticket generation

- Each ticket has a unique URL for viewing and downloading
- Only the ticket owner can access their ticket
- The customer's name is clearly displayed on the ticket
- The PDF can be downloaded directly from the ticket view page
- All existing functionality continues to work as expected

app/services/ticket_pdf_generator.rb

@@ -32,13 +32,18 @@ class TicketPdfGenerator
       # Ticket info box
       pdf.stroke_color "E5E7EB"
       pdf.fill_color "F9FAFB"
-      pdf.rounded_rectangle [ 0, pdf.cursor ], 310, 120, 10
+      pdf.rounded_rectangle [ 0, pdf.cursor ], 310, 150, 10
       pdf.fill_and_stroke
 
       pdf.move_down 10
       pdf.fill_color "000000"
       pdf.font "Helvetica", size: 12
 
+      # Customer name
+      pdf.text "Ticket Holder:", style: :bold
+      pdf.text "#{ticket.first_name} #{ticket.last_name}"
+      pdf.move_down 8
+
       # Ticket details
       pdf.text "Ticket Type:", style: :bold
       pdf.text ticket.ticket_type.name