- Game tickets now create payment requests (sa_game_ticket type) sent to
  the cashier sub-queue, matching pool ticket and booking patterns
- Added session lifecycle actions: start, complete, cancel with UI buttons
- Fixed session status bug: allow issuing tickets during 'in_progress' sessions
- Fixed GuestEntryService crash when no carnet exists (skip UPDATE on id=0)
- Added payment completion/void handlers for game and pool tickets
- Extended PaymentRequestService whitelist for sa_game_ticket/sa_pool_ticket
- Added comprehensive tutorial sections 9-14 covering entertainment workflows
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>