Gateway

export interface GatewayService {
  llm(route: LlmRouteId, opts: {
    model: string;
    auth?: "byok" | "claude-code" | "codex" | "managed";
  }): LlmService;
  media(provider: MediaProviderId, opts: { model?: string }): MediaService;
  route(capability, hint?): { provider; model; usdEstimate };
  quote(plan): Promise<{ usd: number; lines: [...] }>;   // never calls a provider
}