- TournamentService with create-from-template, start, pause, resume, end, cancel
- Auto-close when 1 player remains, with CheckAutoClose hook
- TournamentState aggregation for WebSocket full-state snapshot
- ActivityEntry feed converting audit entries to human-readable items
- MultiManager with ListActiveTournaments for lobby view (MULTI-01/02)
- ICM calculator: exact Malmuth-Harville for <=10, Monte Carlo for 11+ (FIN-11)
- ChopEngine with ICM, chip-chop, even-chop, custom, and partial-chop deals
- DealProposal workflow: propose, confirm, cancel with audit trail
- Tournament API routes for lifecycle, state, activity, and deal endpoints
- deal_proposals migration (007) for storing chop proposals
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>