export interface DriverData { id: string; name: string; avatarUrl: string | null; iracingId?: string; rating?: number; country?: string; } export interface LeagueMembershipData { driverId: string; leagueId: string; role: 'owner' | 'admin' | 'steward' | 'member'; joinedAt: string; status: 'active' | 'pending' | 'banned'; }