feat(01-08): implement table management, auto-seating, blueprints, and hand-for-hand
- TableService with CRUD, AssignSeat, AutoAssignSeat (fills evenly), MoveSeat, SwapSeats
- Dealer button tracking with SetDealerButton and AdvanceDealerButton (skips empty seats)
- Hand-for-hand mode with per-table completion tracking and clock integration
- BlueprintService with CRUD, SaveBlueprintFromTournament, CreateTablesFromBlueprint
- Migration 006 adds hand_for_hand_hand_number and hand_completed columns
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>