/**
 * Enumerate LAN IPv4 addresses suitable for pairing display.
 * Skips internal/loopback (127.*) and unconfigured link-local (169.254.*) interfaces.
 * Tailscale (100.64/10) and VPN addresses are kept — they are valid direct-connect targets.
 */
export declare function getLanIPv4Addresses(): string[];
/**
 * Build the `catui://connect` deep link consumed by the mobile app (scan-to-pair).
 * `altEndpoints` carries the remaining LAN addresses; the app tries the primary
 * first and falls back through the alternates when the host has multiple NICs
 * (physical LAN + VMware/WSL virtual switches).
 */
export declare function buildConnectDeepLink(wsEndpoint: string, token: string, hostname: string, altEndpoints?: string[]): string;
/** Render a terminal QR code for the given payload. */
export declare function renderQr(payload: string): Promise<string>;
export interface ConnectionBannerInput {
    hostname: string;
    port: number;
    token: string;
    /** LAN (or Tailscale/VPN) IPv4 addresses to advertise. */
    addresses: string[];
    /** cloudflared quick tunnel hostname (e.g. "abc-def.trycloudflare.com") when enabled. */
    tunnelHostname?: string;
}
/** Format the serve-mode startup banner (URLs + token + QR + security hints). */
export declare function formatConnectionBanner(input: ConnectionBannerInput): string;