List tournament team invites

Returns every team invite issued for the tournament, resolved by slug, in all four states. Re-inviting a team reuses that team's existing row rather than appending a new one, so there is exactly one invite per team and its status is the current state. Reading requires tournaments.tournament_admin:read on the key AND that the caller manages the tournament (host, tournament ADMIN, or tournament MODERATOR); sending and revoking invites requires ADMIN. Tournament API access is gated at api_pro on the tournament HOST OWNER's personal developer plan. An organization holding a consumer subscription does not satisfy this - the developer plan ladder has no organization arm.