Allow reopening finalized tournaments from the admin panel in development mode. This makes testing tournament finalization easier without needing CLI scripts.
- Add REOPEN_TOURNAMENT action to admin panel
- Convert reopen-tournament.ts script logic to Kysely
- Show Admin tab in tournament nav even after finalization (dev only)
- Add tournamentId column to TournamentBadgeOwner TypeScript interface
- Delete scripts/reopen-tournament.ts