Fix property access to match the Ticket type definition:
- ticket.user_name → ticket.user?.firstName + lastName
- ticket.user_email → ticket.user?.email
- ticket.prize_name → ticket.prize?.name
- ticket.played_at → ticket.playedAt
The Ticket type uses camelCase and nested objects (user, prize),
not snake_case flat properties.
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Co-Authored-By: Claude <noreply@anthropic.com>