Views were referencing columns that don't exist:
- rounds_count → rounds_total/swiss_rounds
- entry_fee → entry_fee_coins
- prize_pool → prize_pool_coins
- start_date → starts_at
- end_date → registration_closes_at
- organization_id → org_id
- started_at → removed (column doesn't exist)

Also fixed start() to skip bot players (already registered via bulk import)
and not crash when player_id doesn't match a real profile.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>