/**
 * Shared `host:port` parser used by the auth-broker and auth-gateway boot
 * paths. Centralized so the two servers can't drift on what they accept (the
 * gateway used to silently allow empty hostnames; this fixes it).
 */
export interface ParsedBind {
    hostname: string;
    port: number;
}
/**
 * Parse a `host:port` (or bare `port`, which assumes loopback) string.
 *
 * Accepts:
 *   - `"4000"`            → `127.0.0.1:4000`
 *   - `"0.0.0.0:4000"`    → as written
 *   - `"[::1]:4000"`      → as written (brackets retained, Bun handles them)
 *
 * Rejects:
 *   - empty input
 *   - empty hostname (`":4000"`)
 *   - non-integer / out-of-range port
 */
export declare function parseBind(raw: string): ParsedBind;