New event_ticket_settings.tickets_mailed column (default false, since
no event mails physical tickets today). When false, the redemption
confirmation email tells the guest their tickets await pickup at the
Abendkasse under their name instead. Read directly by
sendRedemptionConfirmation from event_ticket_settings, so both send
paths (redeem flow, admin resend) pick it up without either caller
changing.
Also fixes docker/init/03-tickets-schema.sql, found missing the
SOURCE line for migration 003 while adding 004 - local tickets dev
databases have been silently missing confirmation_email_status.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
